Method, device and equipment for measuring temperature characteristics of inductosyn in vacuum environment

Abstract

The invention relates to the technical field of inductosynchronizers, and discloses a method, device and equipment for measuring the temperature characteristic of an inductosyn in a vacuum environment, and the method comprises the steps: controlling a rotating mechanism of the inductosyn to rotate to a plurality of specified angles, and carrying out the locking, the specified angle is determined according to phase information corresponding to the fine channel electrical period; under the condition that the rotating mechanism is locked at each specified angle, the environment temperature of the measurement environment is adjusted to change in a preset temperature interval, and angle information output by the inductosyn is statically collected to obtain a static measurement result corresponding to each specified angle; and determining a temperature characteristic measurement result of the inductosyn according to the environment temperature and the static measurement results corresponding to the plurality of specified angles. According to the invention, rapid, effective and accurate temperature characteristic measurement can be carried out on the inductosyn in different temperature fields, and a reliable basis is provided for temperature compensation of a high-precision angle measurement system.

Description

Technical Field

[0001] The present application relates to the technical field of induction synchronizers, and in particular to a method, device, and equipment for measuring the temperature characteristics of an induction synchronizer under a vacuum environment. Background Art

[0002] In the aerospace industry, remote sensing observation systems for high-orbit satellites require high-precision scanning and controlled angle measurement systems to achieve detailed detection of the Earth's surface. Inductive synchronizers, due to their non-contact measurement and electromagnetic interference resistance, are a common choice for angle measurement systems in this application scenario.

[0003] However, when inductosyns are used in vacuum environments, such as those found on spacecraft, the extreme environment can trigger thermal expansion of the device material, leading to angular errors in the inductosyns. Therefore, accurately determining the thermal expansion characteristics of inductosyns in vacuum environments is an urgent problem. Summary of the Invention

[0004] The present application provides a method, device and equipment for measuring the temperature characteristics of an induction synchronizer under a vacuum environment, which solves the current technical problem that it is difficult to accurately obtain the thermal expansion characteristics of the induction synchronizer under a vacuum environment. It can quickly and effectively measure the temperature characteristics of the induction synchronizer in different temperature fields, and provides a reliable basis for temperature compensation of high-precision angle measurement systems.

[0005] In order to achieve the above objectives, the main technical solutions adopted in this application include: In a first aspect, an embodiment of the present application provides a method for measuring the temperature characteristics of an inductive synchronizer in a vacuum environment, wherein the inductive synchronizer is disposed in a vacuum and temperature-variable measurement environment, and the method includes: Controlling the rotating mechanism of the induction synchronizer to rotate to a plurality of specified angles and lock the induction synchronizer, wherein the induction synchronizer has a fine channel electrical cycle, and the specified angles are determined based on phase information corresponding to the fine channel electrical cycle; When the rotation mechanism is locked at each specified angle, the ambient temperature of the measurement environment is adjusted to change within a preset temperature range, and during the change of the ambient temperature, the angle information output by the inductive synchronizer is statically collected to obtain a static measurement result corresponding to each specified angle; The temperature characteristic measurement result of the inductive synchronizer is determined according to the ambient temperature and the static measurement results corresponding to each of the plurality of designated angles.

[0006] The temperature characteristic measurement method proposed in the embodiments of this application determines the specified angle and locks the rotation mechanism based on the phase information of the precision channel electrical cycle. Only the angle corresponding to the key position needs to be selected to analyze the impact of temperature changes on the inductive synchronizer, significantly reducing the measurement workload. Furthermore, by measuring the ambient temperature while locked at the specified angle and statically collecting the corresponding angle information, the relationship between the temperature change corresponding to the specific angle and the output angle information of the inductive synchronizer can be accurately obtained, thereby obtaining the temperature characteristic measurement results. This method not only accurately quantifies the thermal expansion effect of the inductive synchronizer in a vacuum temperature-varying environment, but also greatly improves the efficiency of temperature characteristic measurement, thereby improving the accuracy of the angle measurement system and providing key technical support for the engineering application of high-precision remote sensing equipment.

[0007] Optionally, in some embodiments of the present application, the specified angle is determined by the following methods, including: determining an electrical cycle corresponding to a fine channel of the induction synchronizer; The specified angle is determined according to a mechanical angle corresponding to a specified sine-cosine phase within the electrical cycle, wherein the specified sine-cosine phase includes at least one of 0, π / 4, π / 2, and 3π / 4.

[0008] The embodiment of the present application selects a key position in half an electrical cycle of the induction synchronizer's precision channel as the above-mentioned specified sine and cosine phase, and the selected specified sine and cosine phase can cover the maximum value and slope maximum value of the sine and cosine induced electromotive force output by the induction synchronizer's precision channel, thereby ensuring comprehensive measurement of the induction synchronizer under different working conditions, and thus facilitating effective and accurate analysis of the temperature characteristics of the induction synchronizer.

[0009] Optionally, in some embodiments of the present application, adjusting the ambient temperature of the measurement environment to vary between preset temperature intervals includes: Determining an upper temperature limit and a lower temperature limit of the preset temperature range, and adjusting the ambient temperature to the upper temperature limit; The ambient temperature is gradually adjusted from the upper limit temperature value to the lower limit temperature value according to a preset step length, and then the ambient temperature is gradually adjusted from the lower limit temperature value to the upper limit temperature value according to a preset step length.

[0010] The present embodiment of the application sets a preset temperature range with redundancy relative to the actual operating temperature of the induction synchronizer, thereby improving the adaptability and reliability of static measurement results for complex actual operating conditions. Furthermore, the present embodiment of the application gradually adjusts the temperature from the upper limit to the lower limit, and then reverses the adjustment from the lower limit to the upper limit, in accordance with a preset step size. This fully covers both heating and cooling processes, making the static acquisition process more complete and comprehensive, thereby significantly improving the accuracy and comprehensiveness of subsequent static measurement results.

[0011] Optionally, in some embodiments of the present application, the inductive synchronizer includes a fine channel and a coarse channel, and the static measurement results include static acquisition results of the fine channel and static acquisition results of the coarse channel; the static acquisition of the angle information output by the inductive synchronizer to obtain the static measurement result corresponding to each specified angle includes: The angle information output by the precision channel is collected based on a preset sampling frequency to obtain a static collection result of the precision channel; While collecting data on the fine channel, the angle information output by the coarse channel is synchronously collected based on the preset sampling frequency to obtain a static collection result of the coarse channel.

[0012] Optionally, in some embodiments of the present application, the inductive synchronizer is provided with a plurality of temperature measurement points, and determining the temperature characteristic measurement result of the inductive synchronizer according to the static measurement results corresponding to the ambient temperature and the plurality of specified angles includes: Obtaining the ambient temperature corresponding to each of the temperature measurement points and the static measurement results corresponding to each of the multiple specified angles, and normalizing the ambient temperature and the static measurement results to obtain normalized temperature data and normalized static measurement data; Fitting the normalized temperature data and the normalized static measurement data corresponding to each temperature measurement point respectively to obtain an initial temperature rise fitting curve and an initial temperature drop fitting curve corresponding to each temperature measurement point; Performing discrete mean calculation on the initial temperature rise fitting curve of each of the temperature measurement points to obtain target temperature rise fitting curves corresponding to each of the multiple specified angles, and performing discrete mean calculation on the initial temperature drop fitting curve of each of the temperature measurement points to obtain target temperature drop fitting curves corresponding to each of the multiple specified angles; The target temperature increase fitting curve and the target temperature decrease fitting curve are averaged to obtain average temperature change characteristic curves corresponding to the plurality of specified angles, and the temperature characteristic measurement result is determined using the average temperature change characteristic curves.

[0013] By setting up multiple temperature measurement points on the induction synchronizer, the present embodiment can comprehensively obtain temperature information at different locations. Combined with normalization processing, it can eliminate data dimension differences to improve data processing accuracy. Then, the data at each temperature measurement point are fitted to obtain an initial temperature rise fitting curve and an initial temperature drop fitting curve. The initial temperature rise fitting curve and the initial temperature drop fitting curve are then fused to reduce the impact of random errors, thereby comprehensively improving the accuracy of temperature characteristic measurement results by utilizing the average temperature variation characteristic curve.

[0014] Optionally, in some embodiments of the present application, after determining the temperature characteristic measurement result of the inductive synchronizer according to the ambient temperature and the static measurement result, the method further includes: Adjusting the ambient temperature of the measurement environment to the lower temperature limit, and gradually adjusting the ambient temperature from the lower temperature limit to the upper temperature limit according to the preset step size; After each adjustment, the rotating mechanism is controlled to rotate at a constant speed within a preset angle range, and during the constant rotation, the actual angle of the rotating mechanism and the angle information output by the inductive synchronizer corresponding to the ambient temperature are dynamically collected to obtain a dynamic measurement result; determining a temperature characteristic reference result of the inductive synchronizer according to the actual angle, the dynamic measurement result, and the corresponding ambient temperature; The temperature characteristic measurement result is verified using the temperature characteristic reference result. If the temperature characteristic reference result and the temperature characteristic measurement result meet a preset matching condition, it is determined that the temperature characteristic measurement result passes the verification.

[0015] The embodiment of the present application dynamically collects angle information within a preset angle range under different ambient temperatures, and uses the temperature characteristic reference results obtained by dynamic measurement to verify the temperature characteristic measurement results obtained by static measurement, ensuring the universality of the static measurement method, thereby effectively ensuring the reliability and accuracy of the temperature characteristic measurement results.

[0016] Optionally, in some embodiments of the present application, controlling the rotation mechanism to rotate at a constant speed within a preset angle range includes: Determine the lower limit and upper limit of the preset angle range; Control the rotating mechanism to rotate at a constant speed from the lower limit of the angle to the upper limit of the angle, and then rotate at a constant speed from the upper limit of the angle to the lower limit of the angle; The lower limit of the angle is smaller than the minimum value of the specified angles, and the upper limit of the angle is larger than the maximum value of the specified angles.

[0017] The embodiment of the present application controls the rotation mechanism to rotate at a uniform speed from the lower angle limit to the upper angle limit, and then from the upper angle limit to the lower angle limit, thereby realizing dynamic collection of both positive and negative rotation directions, ensuring the comprehensiveness and accuracy of the temperature characteristic reference results, thereby enabling effective verification of the temperature characteristic measurement results obtained by static measurement.

[0018] In a second aspect, an embodiment of the present application provides a device for measuring the temperature characteristics of an inductive synchronizer in a vacuum environment, wherein the inductive synchronizer is disposed in a vacuum and temperature-variable measurement environment, and the device comprises: a rotation control module, configured to control the rotation mechanism of the induction synchronizer to rotate to and lock each designated angle, wherein the designated angle is determined based on phase information corresponding to an electrical cycle of a fine channel of the induction synchronizer; a first temperature adjustment module, configured to adjust the ambient temperature of the measurement environment to vary between preset temperature ranges corresponding to each of the specified angles when the rotation mechanism is locked; The static measurement module is used to statically collect the angle information output by the inductive synchronizer corresponding to the ambient temperature during the change of the ambient temperature to obtain a static measurement result, and determine the temperature characteristic measurement result of the inductive synchronizer based on the ambient temperature and the static measurement result.

[0019] The temperature characteristic measurement device proposed in the embodiment of the present application determines the specified angle and locks the rotation mechanism based on the phase information of the precision channel electrical cycle. Only the angle corresponding to the key position needs to be selected to analyze the impact of temperature changes on the inductive synchronizer, significantly reducing the measurement workload. Furthermore, by measuring the ambient temperature while locked at the specified angle and statically collecting the corresponding angle information, the relationship between the temperature change corresponding to the specific angle and the output angle information of the inductive synchronizer can be accurately obtained, thereby obtaining the temperature characteristic measurement results. This not only accurately quantifies the thermal expansion effect of the inductive synchronizer in a vacuum temperature-varying environment, but also greatly improves the efficiency of temperature characteristic measurement, thereby improving the accuracy of the angle measurement system and providing key technical support for the engineering application of high-precision remote sensing equipment.

[0020] Optionally, in some embodiments of the present application, the device further includes: a second temperature adjustment module, configured to, after obtaining the static measurement result, determine an upper temperature limit and a lower temperature limit of the preset temperature range, adjust the ambient temperature of the measurement environment to the lower temperature limit, and gradually adjust the ambient temperature from the lower temperature limit to the upper temperature limit according to a preset step size; a dynamic measurement module, configured to control the rotating mechanism to rotate at a constant speed within a preset angle range after each adjustment, and dynamically collect angle information output by the inductive synchronizer corresponding to the ambient temperature during the uniform rotation of the rotating mechanism to obtain a dynamic measurement result, and determine a reference result of the temperature characteristic of the inductive synchronizer based on the ambient temperature and the dynamic measurement result; The verification module is configured to verify the temperature characteristic measurement result using the temperature characteristic reference result, and determine that the temperature characteristic measurement result passes the verification if the temperature characteristic reference result and the temperature characteristic measurement result meet a preset matching condition.

[0021] The embodiment of the present application uses a second temperature control module and a dynamic measurement module to dynamically collect angle information within a preset angle range under different ambient temperatures, so as to utilize the temperature characteristic reference results obtained by dynamic measurement, and verify the temperature characteristic measurement results obtained by static measurement through a verification module to ensure the universality of the static measurement method, thereby effectively ensuring the reliability and accuracy of the temperature characteristic measurement results.

[0022] In a third aspect, an embodiment of the present application provides a computer device, including: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for measuring the temperature characteristics of an induction synchronizer under a vacuum environment described in the above embodiment by executing the computer instructions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 Schematic diagram of the electrical principle of an absolute circular induction synchronizer in the related art; Figure 2 This is a schematic diagram of the measurement environment setting of the induction synchronizer in an embodiment of the present application; Figure 3 This is a flow chart of a method for measuring the temperature characteristics of an inductive synchronizer in a vacuum environment proposed in one embodiment of the present application; Figure 4 This is a schematic structural diagram of a scanning device in one embodiment of the present application; Figure 5 This is a schematic diagram of the temperature measurement point distribution of the induction synchronizer in one embodiment of the present application; Figure 6 The ambient temperature change curve corresponding to each temperature measurement point in an embodiment of the present application; Figure 7 The initial temperature rise and fall fitting curve corresponding to the coarse channel in one embodiment of the present application; Figure 8 The initial temperature rise and fall fitting curve corresponding to the fine channel in one embodiment of the present application; Figure 9 The average temperature variation characteristic curve corresponding to the coarse channel and the fine channel in one embodiment of the present application; Figure 10 This is a schematic diagram of a reference result of temperature characteristics corresponding to dynamic measurement in an embodiment of the present application; Figure 11 This is a structural schematic diagram of a device for measuring the temperature characteristics of an induction synchronizer in a vacuum environment proposed in one embodiment of the present application. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0026] In the aerospace industry, remote sensing observation systems for high-orbit satellites require high-precision scanning and controlled angle measurement systems to achieve detailed detection of the Earth's surface. Inductive synchronizers, due to their non-contact measurement and electromagnetic interference resistance, are a common choice for angle measurement systems in this application scenario.

[0027] An Absolute Circular Inductive Synchronizer (CIS), a type of inductive synchronizer, consists of a stator and a rotor. It converts angle changes into electrical signal changes through electromagnetic coupling between the stator and rotor windings. Figure 1 The electrical principle of the stator and rotor of the absolute circular induction synchronizer is shown in the figure. Figure 1 As shown in Figure 1, the stator includes sine winding terminals S1, S2, cosine winding terminals C1, and cosine winding terminals C2, and the rotor includes continuous winding terminals Z1 and Z2. When an AC excitation signal is applied to the rotor's continuous winding, a multi-pole alternating magnetic field is generated near the rotor plane, with the number of poles determined by the number of conductor slices.

[0028] Assume the AC excitation signal of the sinusoidal winding is As shown in the following formula (1): Formula (1) Assume that the AC excitation signal of the cosine winding is As shown in the following formula (2): Formula (2) In formula (1) and formula (2), represents the amplitude of the AC excitation signal, represents the angular frequency of the AC excitation signal, Indicates time.

[0029] According to the characteristics of the induction synchronizer, the angle of the rotor relative to the stator is θ, and the number of pole pairs of the rotor and stator windings is n. Then the induced electromotive force on the stator is The expression of is shown in the following formula (3): Formula (3) Where, is the coupling coefficient.

[0030] It can be seen that the phase of the induced electromotive force on the stator is linearly related to the rotation angle θ of the rotor relative to the stator. By detecting the phase of the induced electromotive force, the rotation angle θ of the rotor relative to the stator can be measured. For example, if the number of pole pairs n and the coupling coefficient are known, , by measuring the induced electromotive force The rotation angle θ can be calculated from the phase of

[0031] The 360-pole absolute circular induction synchronizer consists of a coarse channel and a fine channel. The coarse channel's rotor vanes are continuously wound in the form of an Archimedean spiral, while the stator uses a segmented spiral winding consisting of alternating sine and cosine windings. This produces a sine signal and a cosine signal over a 360-degree range, forming the absolute coordinate. The fine channel's rotor and stator winding layouts differ. The rotor uses a continuous winding, with the number of conductors representing the number of poles in the circular induction synchronizer. The angle between the centerlines (or edges) of two adjacent conductors is called the pole pitch. The stator uses segmented windings, also known as sine and cosine windings. The coarse channel uses a 360-degree electrical cycle as a complete measurement unit, while the fine channel consists of 360 identical electrical cycles, each corresponding to a 1-degree measurement range. The angle measurement principle uses the coarse channel's range to determine the electrical cycle corresponding to the fine channel. After obtaining a wide range of initial angle values ​​through coarse measurement with the coarse channel, high-resolution angle information is then obtained through fine measurement with the fine channel.

[0032] As the number of pole pairs increases, the resolution of an induction synchronizer significantly improves. A 360-pole-pair induction synchronizer can now achieve a resolution of 0.054 arc seconds. However, higher resolution increases the sensitivity of the induction synchronizer's angular measurement performance to ambient temperature fluctuations. This is particularly true when induction synchronizers are used in vacuum environments, such as spacecraft. The geostationary orbit (GEO) thermal environment experiences thermal cycling caused by periodic solar radiation and Earth occultations. Due to mismatched coefficients of thermal expansion (CTE), this extreme environment triggers thermal expansion in the device materials, generating alternating thermal stresses in the induction synchronizer materials. This, in turn, causes radial and axial deformation of the stator and rotor in a 360-pole-pair absolute induction synchronizer under rapid temperature fluctuations in a vacuum. These thermally induced deformations alter the electromagnetic coupling gap between the stator and rotor, causing discrepancies between the angular information output by the absolute induction synchronizer and the actual angle. This ultimately leads to geometric distortion in satellite remote sensing images and distorted scientific data.

[0033] In the relevant technologies, most of the current research focuses on the temperature characteristics of the induction synchronizer under normal ground temperature conditions. Therefore, how to accurately obtain the thermal expansion characteristics of the induction synchronizer in a vacuum environment has become an urgent problem that needs to be solved.

[0034] According to an embodiment of the present application, an embodiment of a method for measuring the temperature characteristics of an inductive synchronizer under a vacuum environment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] In this embodiment, a method for measuring the temperature characteristics of an inductive synchronizer in a vacuum environment is provided, which can be used in a remote sensing observation system of a high-orbit satellite, wherein the inductive synchronizer is set in a vacuum and temperature-variable measurement environment. Figure 2 As shown, the embodiment of the present application is provided with a vacuum tank 50 , a preamplifier device 30 , a ground inspection device 10 , a scanning control device 20 and a scanning device 40 .

[0036] Specifically, the ground inspection device 10 may be a computer device, which is used to execute the temperature characteristic measurement method proposed in the embodiment of the present application.

[0037] The scanning control device 20 receives a control instruction from the ground inspection device 10 and sends a motion control signal to the scanning device 40 in response to the control instruction.

[0038] The scanning device 40 is used to drive the rotation mechanism of the induction synchronizer and collect the angular information output by the induction synchronizer. The scanning device 40 is also equipped with a locking mechanism 410. Specifically, in response to the motion control signal, the scanning device 40 drives the rotation mechanism to a specified angle and locks it at that angle, or drives the rotation mechanism to rotate at a constant speed within a certain angular range. The preamplifier device 30 is connected to the scanning device 40 and the scanning control device 20 via a port. The motion control signal is sent to the preamplifier device 30, processed by the preamplifier device 30, and then sent to the scanning device 40. The angular information collected by the scanning device 40 is sent to the preamplifier device 30, processed by the preamplifier device 30, and then sent to the scanning control device 20.

[0039] The vacuum tank 50 is used to provide a vacuum and temperature-variable measurement environment, and the scanning device 40 and the inductive synchronizer are both arranged inside the vacuum tank 50 . Meanwhile, the tank wall of the vacuum tank 50 is well connected to the ground.

[0040] Before starting the temperature characteristic measurement method proposed in the embodiment of the present application, connect the cables between the devices inside and outside the chassis tank and perform a power-on test before closing the tank. After the test is completed, close the vacuum tank and start evacuating the vacuum tank. At this time, the devices inside the vacuum tank are powered off. Wait until the vacuum degree in the vacuum tank reaches 1.0×10 -3 After Pa, power is turned on and the following temperature characteristic measurement method is started.

[0041] Figure 3 FIG. 1 is a flow chart of a method for measuring the temperature characteristics of an inductive synchronizer under a vacuum environment according to an embodiment of the present application. Figure 3 As shown, the process includes the following steps: Step S1 : controlling the rotating mechanism of the induction synchronizer to rotate to a plurality of designated angles and lock them, wherein the induction synchronizer has a precise channel electrical cycle, and the designated angles are determined according to phase information corresponding to the precise channel electrical cycle.

[0042] Specifically, in the embodiment of the present application, a scanning mechanism is used to drive the rotating mechanism of the inductive synchronizer to rotate to each specified angle, where the rotating mechanism is the rotor of the inductive synchronizer, and subsequent measurements are performed when the rotating mechanism rotates to each specified angle and is locked.

[0043] In addition, the electrical cycle of the precision channel refers to the phase change cycle that the sine and cosine signals output by the precision channel of the induction synchronizer undergo to complete a complete periodic change. By corresponding to the phase change of 2π, the embodiment of the present application selects several key phases between the phases of 0 and 2π, and uses the mechanical angles corresponding to these key phases as the above-mentioned specified angles.

[0044] In step S3, when the rotating mechanism is locked at each specified angle, the ambient temperature of the measurement environment is adjusted to change between the preset temperature ranges, and during the change of the ambient temperature, the angle information output by the inductive synchronizer is statically collected to obtain a static measurement result corresponding to each specified angle.

[0045] Specifically, when the rotation mechanism is locked at a specific angle, that angular position remains fixed, and while maintaining each specific angle, the ambient temperature of the measurement environment is adjusted to vary between preset temperature ranges. Thus, the aforementioned static acquisition captures the angular information output by the inductive synchronizer while the ambient temperature changes, while maintaining the specified angle. Through static acquisition, corresponding static measurement results are obtained for each specified angle, and these results reflect how the angular information output by the inductive synchronizer changes with ambient temperature at that specified angle.

[0046] Step S5 , determining a temperature characteristic measurement result of the induction synchronizer according to the ambient temperature and the static measurement results corresponding to each of the plurality of designated angles.

[0047] Specifically, for multiple specified angles, the static measurement results corresponding to each of the multiple specified angles are associated with the changes in ambient temperature. That is, a correspondence between different ambient temperatures and the angle information output by the inductive synchronizer at each specified angle is established, and then the output characteristics of the inductive synchronizer under different temperature conditions are determined, so as to achieve accurate quantification of the thermal expansion effect of the inductive synchronizer in a vacuum variable temperature environment.

[0048] The temperature characteristic measurement method proposed in the embodiments of this application determines the specified angle and locks the rotation mechanism based on the phase information of the precision channel electrical cycle. Only the angle corresponding to the key position needs to be selected to analyze the impact of temperature changes on the inductive synchronizer, significantly reducing the measurement workload. Furthermore, by measuring the ambient temperature while locked at the specified angle and statically collecting the corresponding angle information, the relationship between the temperature change corresponding to the specific angle and the output angle information of the inductive synchronizer can be accurately obtained, thereby obtaining the temperature characteristic measurement results. This method not only accurately quantifies the thermal expansion effect of the inductive synchronizer in a vacuum temperature-varying environment, but also greatly improves the efficiency of temperature characteristic measurement, thereby improving the accuracy of the angle measurement system and providing key technical support for the engineering application of high-precision remote sensing equipment.

[0049] Furthermore, in some embodiments of the present application, the specified angle is determined by the following methods, including: Determine the electrical period corresponding to the fine channel of the induction synchronizer; The specified angle is determined according to a mechanical angle corresponding to a specified sine and cosine phase within an electrical cycle, wherein the specified sine and cosine phase includes at least one of 0, π / 4, π / 2, and 3π / 4.

[0050] Specifically, in some embodiments of the present application, four key phases of the sine and cosine phases within half an electrical cycle are selected: 0, π / 4, π / 2, and 3π / 4. The mechanical angles corresponding to these four key phases are determined to be 0 degrees, 7.5 arc minutes, 15 arc minutes, and 22.5 arc minutes, i.e., the specified angles are 0 degrees, 7.5 arc minutes, 15 arc minutes, and 22.5 arc minutes. These key phases are evenly distributed within half an electrical cycle, fully covering the change process of the sine and cosine signals from 0 phase to peak value and then back to 0 phase. The characteristic performance of the entire electrical cycle is then mapped with the characteristic performance of half an electrical cycle, which not only reduces the number of measurement angles but also ensures the comprehensiveness and accuracy of the temperature characteristic analysis.

[0051] The embodiment of the present application selects a key position in half an electrical cycle of the induction synchronizer's precision channel as the above-mentioned specified sine and cosine phase, and the selected specified sine and cosine phase can cover the maximum value and slope maximum value of the sine and cosine induced electromotive force output by the induction synchronizer's precision channel, thereby ensuring comprehensive measurement of the induction synchronizer under different working conditions, and thus facilitating effective and accurate analysis of the temperature characteristics of the induction synchronizer.

[0052] In some embodiments of the present application, step S3 may include the following steps: Step S31 , determining an upper limit temperature value and a lower limit temperature value of a preset temperature range, and adjusting the ambient temperature to the upper limit temperature value.

[0053] Specifically, in high-orbit satellite applications, the actual operating temperature is 5°C to 45°C. This embodiment of the present application provides a certain margin of redundancy, setting the preset temperature range to 0°C to 50°C to account for abnormal temperature fluctuations in the inductive synchronizer. Therefore, the lower temperature limit is 0°C and the upper temperature limit is 50°C.

[0054] In one example of the embodiment of the present application, the initial temperature of the vacuum tank is 25°C, so the ambient temperature inside the vacuum tank is increased to 50°C.

[0055] In step S33 , the ambient temperature is gradually adjusted from the upper limit temperature value to the lower limit temperature value according to a preset step length, and then the ambient temperature is gradually adjusted from the lower limit temperature value to the upper limit temperature value according to a preset step length.

[0056] Specifically, in an example of the embodiment of the present application, the preset step size is 5°C. The following describes in detail the execution process of step S3 in some embodiments of the present application, taking the above-mentioned 0 degrees, 7.5 arc minutes, 15 arc minutes, and 22.5 arc minutes as the specified angles as examples: First, the scanning device drives the rotor of the inductive synchronizer to point to 0 degrees of the precision channel electrical cycle and then locks it. At this time, the ambient temperature in the vacuum tank rises from 25°C to 50°C, then drops from 50°C to 0°C with a preset step size of 5°C, and then rises from 0°C to 50°C with a preset step size of 5°C. At the same time, while the ambient temperature changes from 50°C to 0°C and then to 50°C, the angle information output by the inductive synchronizer is statically collected.

[0057] Subsequently, the scanning device is unlocked and drives the rotor of the inductive synchronizer to point to 7.5 arc minutes of the electrical cycle of the precision channel and then locked again. At this time, the ambient temperature in the vacuum tank is cooled from 50°C to 0°C at a preset step size of 5°C, and then heated from 0°C to 50°C at a preset step size of 5°C. At the same time, while the ambient temperature changes from 50°C to 0°C and then to 50°C, the angle information output by the inductive synchronizer is statically collected.

[0058] The scanning device is unlocked again and drives the rotor of the inductive synchronizer to point to 15 arc minutes of the fine channel electrical cycle before locking again. At this time, the ambient temperature in the vacuum tank is cooled from 50°C to 0°C in a preset step of 5°C, and then heated from 0°C to 50°C in a preset step of 5°C. At the same time, while the ambient temperature changes from 50°C to 0°C and then to 50°C, the angle information output by the inductive synchronizer is statically collected.

[0059] The scanning device is unlocked again and drives the rotor of the inductive synchronizer to point to 22.5 arc minutes of the fine channel electrical cycle before locking again. At this time, the ambient temperature in the vacuum tank is cooled from 50°C to 0°C in a preset step of 5°C, and then heated from 0°C to 50°C in a preset step of 5°C. At the same time, while the ambient temperature changes from 50°C to 0°C and then to 50°C, the angle information output by the inductive synchronizer is statically collected.

[0060] Finally, the scanning device is unlocked and drives the rotor of the induction synchronizer to point to 0 degrees of the fine channel electrical cycle to restore to the original state.

[0061] in, Figure 4 The figure shows the setting position of the locking mechanism 410 in the scanning device. In some embodiments of the present application, the locking mechanism 410 is used to lock the rotor.

[0062] Therefore, the present embodiment sets a preset temperature range with redundancy relative to the actual operating temperature of the inductive synchronizer, thereby improving the adaptability and reliability of static measurement results for complex actual operating conditions. Furthermore, the present embodiment gradually adjusts the temperature from the upper limit to the lower limit, and then reverses the process from the lower limit to the upper limit, in accordance with a preset step size. This fully covers both heating and cooling processes, making the static acquisition process more complete and comprehensive, thereby significantly improving the accuracy and comprehensiveness of subsequent static measurement results.

[0063] In some embodiments of the present application, the inductive synchronizer includes a fine channel and a coarse channel, and the static measurement results include the static acquisition results of the fine channel and the static acquisition results of the coarse channel. Further, the above step S3 may also include the following steps: Step S35: collecting the angle information output by the fine channel based on a preset sampling frequency to obtain a static collection result of the fine channel.

[0064] Step S37: While collecting the fine channel, synchronously collect the angle information output by the coarse channel based on the preset sampling frequency to obtain the static collection result of the coarse channel.

[0065] Specifically, the embodiment of the present application adopts a tracking shaft-angle converter of the RDC19220 model to collect angle information, which can convert the induced electromotive force output by the inductive synchronizer into a digital angle signal. Among them, the working resolution of the coarse channel and the fine channel is 16 bits, and the bandwidth is 280Hz. In addition, the output data bit width of the tracking shaft-angle converter is 41 bits, and its data structure is as follows: the upper 9 bits represent the target angle value, which is an integer degree value obtained by fusing the static acquisition result of the fine channel and the acquisition result of the coarse channel, the middle 16 bits correspond to the static acquisition result of the fine channel, and the lower 16 bits correspond to the static acquisition result of the coarse channel.

[0066] In some embodiments of the present application, the digital output range of the coarse channel static acquisition results and the fine channel static acquisition results is 0-65535, with the quantization unit being "codewords." Under current resolution conditions, when the coarse channel covers the full 360° range, the corresponding total code value is 65536 codewords. By conversion, it can be seen that a 1° mechanical angle interval corresponds to 182 codewords. The total code value of the fine channel within a 1° range is 65536 codewords, and the mechanical angle interval represented by a single codeword is 0.055 arc seconds.

[0067] Furthermore, the embodiment of the present application synchronously collects the angle information output by the fine channel and the coarse channel at a preset sampling frequency of 64kHz to obtain the fine channel static collection result Fij and the coarse channel static collection result Cij, where i represents the collection time and j represents the current time digital value.

[0068] It can be seen that in some embodiments of the present application, the above-mentioned static measurement results include the fine channel static acquisition results Fij and the coarse channel static acquisition results Cij, and in some embodiments of the present application, the temperature characteristic measurement results in step S7 are analyzed for the fine channel static acquisition results Fij and the coarse channel static acquisition results Cij respectively.

[0069] In some embodiments of the present application, the induction synchronizer is provided with multiple temperature measurement points, specifically, Figure 5 As shown, the above-mentioned temperature measuring points include a first temperature measuring point 510 set on the upper side of the induction synchronizer, a second temperature measuring point 520 on the lower side of the induction synchronizer, a third temperature measuring point 530 on the left side of the induction synchronizer mounting bracket, and a fourth temperature measuring point 540 on the right side of the induction synchronizer mounting bracket.

[0070] Specifically, in some examples of the embodiments of the present application, a platinum thermal resistor is attached with high-temperature tape at the position corresponding to the temperature measurement point, so as to collect the ambient temperature through the platinum thermal resistor. Figure 6 The graph shows the change curve of the ambient temperature measured at the above four temperature measurement points during the entire static acquisition process.

[0071] It should be noted that Figure 5 The setting of the above-mentioned four temperature measuring points is only used as an example to illustrate an embodiment of the present application and is not intended to limit the present application. In other examples of the embodiment of the present application, the setting position and number of the temperature measuring points can also be flexibly adjusted according to actual measurement needs.

[0072] In some embodiments of the present application, step S5 may include the following steps: Step S51 , obtaining the ambient temperature corresponding to each temperature measurement point and the static measurement results corresponding to multiple designated angles, and normalizing the ambient temperature and the static measurement results to obtain normalized temperature data and normalized static measurement data.

[0073] Specifically, in some embodiments of the present application, the ambient temperature and static measurement results are normalized to eliminate data dimension differences. It should be noted that since the static measurement results include coarse channel static acquisition results and fine channel static acquisition results, the normalized static measurement data will also correspond to normalized coarse channel static acquisition results and normalized fine channel static acquisition results.

[0074] Step S53 , fitting the normalized temperature data and the normalized static measurement data corresponding to each temperature measurement point respectively, to obtain an initial temperature rise fitting curve and an initial temperature drop fitting curve corresponding to each temperature measurement point.

[0075] Specifically, in some embodiments of the present application, Figure 5The first to fourth temperature measurement points shown are fitted. For example, the normalized temperature data corresponding to the first temperature measurement point in the stage of heating from 0°C to 50°C and the normalized coarse channel static acquisition results are used for fitting. The resulting initial temperature rise fitting curve represents the relationship between the angular information output by the coarse channel of the induction synchronizer at a certain specified angle and the change in the heating stage of the first temperature measurement point. Similarly, the normalized temperature data corresponding to the first temperature measurement point in the stage of cooling from 50°C to 0°C and the normalized coarse channel static acquisition results are used for fitting. The resulting initial temperature drop fitting curve represents the relationship between the angular information output by the coarse channel of the induction synchronizer at a certain specified angle and the change in the cooling stage of the first temperature measurement point. The fitting process corresponding to other temperature measurement points is similar and will not be repeated here.

[0076] in, Figure 7 The initial temperature increase fitting curve and the initial temperature decrease fitting curve of the coarse channel corresponding to four specified angles of 0 degrees, 7.5 arc minutes, 15 arc minutes and 22.5 arc minutes are respectively shown.

[0077] Similarly, the fitting process of normalized temperature data and normalized precision channel static acquisition results is similar and will not be described here. Figure 8 The initial temperature rise fitting curve and the initial temperature drop fitting curve of the fine channel corresponding to the four specified angles of 0 degrees, 7.5 arc minutes, 15 arc minutes and 22.5 arc minutes are respectively shown.

[0078] Depend on Figure 7 and Figure 8 It can be seen that in some embodiments of the present application, the digital value of the normalized static measurement data measured is negatively correlated with the normalized temperature data.

[0079] In step S55, a discrete mean calculation is performed on the initial temperature rise fitting curve of each temperature measuring point to obtain a target temperature rise fitting curve corresponding to each of the multiple specified angles, and a discrete mean calculation is performed on the initial temperature drop fitting curve of each temperature measuring point to obtain a target temperature drop fitting curve corresponding to each of the multiple specified angles.

[0080] Specifically, for each specified angle, each initial heating fitting curve is discretized and sampled at intervals of 10°C to reduce data processing, and the sampled data of each initial heating fitting curve is fused to form a new target heating fitting curve. Similarly, each initial cooling fitting curve is discretized and sampled at intervals of 10°C, and the sampled data of each initial cooling fitting curve is fused to form a new target cooling fitting curve.

[0081] Step S57 , performing mean calculation on the target temperature increase fitting curve and the target temperature decrease fitting curve to obtain average temperature change characteristic curves corresponding to the plurality of specified angles, and determining the temperature characteristic measurement result using the average temperature change characteristic curves.

[0082] Specifically, for each specified angle, the target temperature rise fitting curve and the target temperature drop fitting curve corresponding to the specified angle are averaged at the same temperature point, that is, the fitting values ​​of the two curves at the same temperature are arithmetic averaged to obtain the average temperature change characteristic curve corresponding to the specified angle. The average temperature change characteristic curve represents the temperature characteristic measurement results, and the fitting of the average temperature change characteristic curve can be used to quantify the temperature characteristic measurement results.

[0083] Figure 9 The average temperature variation characteristic curves corresponding to the coarse channel and the fine channel are shown. Figure 9 As can be seen from (a) and (b), in some embodiments of the present application, the average temperature variation characteristic curve represents that the temperature characteristic measurement result is that the digital quantity corresponding to the angle information output by the inductive synchronizer is negatively correlated with the temperature, and the slope of the negative correlation is different for different heating and cooling stages.

[0084] Therefore, by setting up multiple temperature measurement points on the induction synchronizer, the present embodiment can comprehensively obtain temperature information at different locations. Combined with normalization processing, data processing accuracy can be improved. The data at each temperature measurement point is then fitted to obtain an initial temperature rise fitting curve and an initial temperature drop fitting curve. The initial temperature rise fitting curve and the initial temperature drop fitting curve are then fused to reduce the impact of random errors, thereby comprehensively improving the accuracy of the temperature characteristic measurement results by utilizing the average temperature variation characteristic curve.

[0085] In some embodiments of the present application, after step S5, the method further includes step S7, which may include the following steps: Step S71, adjusting the ambient temperature of the measurement environment to a lower temperature limit, and gradually adjusting the ambient temperature from the lower temperature limit to the upper temperature limit according to a preset step size; Step S73: After each adjustment, the rotating mechanism is controlled to rotate at a constant speed within a preset angle range. During the constant rotation, the actual angle of the rotating mechanism and the angle information output by the sensor synchronizer corresponding to the ambient temperature are dynamically collected to obtain dynamic measurement results. Step S75, determining a temperature characteristic reference result of the inductive synchronizer according to the actual angle, the dynamic measurement result and the corresponding ambient temperature; Step S77 , verifying the temperature characteristic measurement result using the temperature characteristic reference result. If the temperature characteristic reference result and the temperature characteristic measurement result meet a preset matching condition, it is determined that the temperature characteristic measurement result passes the verification.

[0086] Specifically, since the above steps S1 to S5 are based on static temperature characteristic measurements at the selected specified angle, in order to verify the accuracy of the above temperature characteristic measurement results and their universality in the full angle domain, the embodiment of the present application performs dynamic temperature characteristic measurements through the above steps S71 to S73, and verifies the temperature characteristic measurement results using the measured temperature characteristic reference results through steps S75 and S77.

[0087] Furthermore, the above step S73 may further include the following steps: Step S731: Determine the lower limit and upper limit of the preset angle range.

[0088] Step S733: Control the rotating mechanism to rotate uniformly from the lower limit angle to the upper limit angle, and then uniformly rotate from the upper limit angle to the lower limit angle, wherein the lower limit angle is less than the minimum value of the specified angles, and the upper limit angle is greater than the maximum value of the specified angles.

[0089] Specifically, in the embodiment of the present application, the preset angle range is set to 0 degrees to 100 degrees.

[0090] The following describes in detail the execution process of step S7 in some embodiments of the present application, taking the above-mentioned 0 degrees, 7.5 arc minutes, 15 arc minutes, and 22.5 arc minutes as the designated angles as examples: After completing step S5, the scanning mechanism maintains the unlocked state of the rotating structure and cools the ambient temperature inside the vacuum chamber from 50°C to 0°C, and then from 0°C to 50°C, in preset steps of 5°C. Furthermore, after each change in ambient temperature, the scanning mechanism drives the rotating structure to rotate at a constant speed from 0°C to 100°C, and then from 100°C back to 0°C, completing a uniform sweep and obtaining dynamic measurement results during each sweep. After each sweep, the ambient temperature is adjusted for the next change.

[0091] Similarly, the dynamic measurement results include the coarse channel dynamic acquisition results and the fine channel dynamic acquisition results. Taking the coarse channel dynamic acquisition results as an example, after the ambient temperature is cooled from 50°C to 45°C, the actual angle at the ambient temperature of 45°C is fitted with the coarse channel dynamic acquisition results. After the fitting is completed, the ambient temperature is adjusted from 45°C to 40°C, and the fitting is repeated in a cycle. The final temperature characteristic reference result is as follows: Figure 10 As shown, the sampling amount of the horizontal axis represents the actual angle of the induction synchronizer rotor. Figure 10It can be seen that the angle information output by the inductive synchronizer at the same actual angle decreases as the ambient temperature increases, that is, the angle information is negatively correlated with the ambient temperature, and its monotonicity is the same as the temperature characteristic measurement result obtained based on static measurement. This verifies that the temperature characteristic reference result matches the temperature characteristic measurement result, indicating that the temperature characteristic measurement result obtained based on static measurement is universal.

[0092] Therefore, the embodiment of the present application dynamically collects angle information within a preset angle range under different ambient temperatures, and uses the temperature characteristic reference results obtained by dynamic measurement to verify the temperature characteristic measurement results obtained by static measurement, ensuring the universality of the static measurement method, thereby effectively ensuring the reliability and accuracy of the temperature characteristic measurement results.

[0093] The embodiment of the present application controls the rotation mechanism to rotate at a uniform speed from the lower angle limit to the upper angle limit, and then from the upper angle limit to the lower angle limit, thereby realizing dynamic collection of both positive and negative rotation directions, ensuring the comprehensiveness and accuracy of the temperature characteristic reference results, thereby enabling effective verification of the temperature characteristic measurement results obtained by static measurement.

[0094] Accordingly, please refer to Figure 11 The embodiment of the present application provides a device for measuring the temperature characteristics of an inductive synchronizer in a vacuum environment. Similarly, the inductive synchronizer is set in a vacuum and temperature-variable measurement environment. The device includes: The rotation control module 100 is used to control the rotation mechanism of the induction synchronizer to rotate to each specified angle and lock it. The specified angle is determined based on the phase information corresponding to the electrical cycle of the fine channel of the induction synchronizer. For details, refer to step S1. The first temperature adjustment module 200 is used to adjust the ambient temperature of the measurement environment to a preset temperature range for each specified angle when the rotation mechanism is locked. For details, refer to step S3; The static measurement module 300 is used to statically collect the angle information of the inductive synchronizer output corresponding to the ambient temperature during the process of ambient temperature changes to obtain a static measurement result, and determine the temperature characteristic measurement result of the inductive synchronizer based on the ambient temperature and the static measurement result. For details, please refer to step S5.

[0095] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0096] The temperature characteristic measuring device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0097] An embodiment of the present application provides a computer device, which includes: one or more processors, memory, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in or on the memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, each device providing some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). The processor can be a central processing unit, a network processor, or a combination thereof. The processor can further include a hardware chip. The above-mentioned hardware chip can be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The above-mentioned programmable logic device can be a complex programmable logic device, a field programmable gate array, a general-purpose array logic, or any combination thereof.

[0098] The memory stores instructions that can be executed by at least one processor, so that the at least one processor executes the method shown in the above embodiment.

[0099] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the computer device, etc. In addition, the memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory may optionally include a memory remotely located relative to the processor, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0100] The memory may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid state drive; the memory may also include a combination of the above types of memory.

[0101] The computer device further includes a communication interface for the computer device to communicate with other devices or a communication network.

[0102] The embodiments of the present application also provide a computer-readable storage medium. The above-mentioned method according to the embodiment of the present application can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0103] An embodiment of the present application provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform a method according to any embodiment of the present application.

[0104] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

[0105] For the convenience of description, the above devices are described as being divided into various units according to their functions. Of course, when implementing this application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0106] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0107] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0108] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0109] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0110] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0111] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

[0112] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A method for measuring the temperature characteristics of an induction synchronizer under a vacuum environment, characterized in that: The inductive synchronizer is set in a vacuum and temperature-variable measurement environment, and the method includes: Controlling the rotating mechanism of the induction synchronizer to rotate to a plurality of specified angles and lock the induction synchronizer, wherein the induction synchronizer has a fine channel electrical cycle, and the specified angles are determined based on phase information corresponding to the fine channel electrical cycle; When the rotation mechanism is locked at each specified angle, the ambient temperature of the measurement environment is adjusted to change within a preset temperature range, and during the change of the ambient temperature, the angle information output by the inductive synchronizer is statically collected to obtain a static measurement result corresponding to each specified angle; The temperature characteristic measurement result of the inductive synchronizer is determined according to the ambient temperature and the static measurement results corresponding to each of the plurality of designated angles.

2. The method according to claim 1, characterized in that The specified angle is determined by: determining an electrical cycle corresponding to a fine channel of the induction synchronizer; The specified angle is determined according to a mechanical angle corresponding to a specified sine and cosine phase within the electrical cycle, wherein the specified sine and cosine phase includes at least one of 0, π / 4, π / 2, and 3π / 4.

3. The method according to claim 1, characterized in that The step of adjusting the ambient temperature of the measurement environment to vary between preset temperature ranges includes: Determining an upper temperature limit and a lower temperature limit of the preset temperature range, and adjusting the ambient temperature to the upper temperature limit; The ambient temperature is gradually adjusted from the upper limit temperature value to the lower limit temperature value according to a preset step length, and then the ambient temperature is gradually adjusted from the lower limit temperature value to the upper limit temperature value according to a preset step length.

4. The method according to claim 1, wherein The inductive synchronizer includes a fine channel and a coarse channel, and the static measurement results include a fine channel static acquisition result and a coarse channel static acquisition result; The statically collecting the angle information output by the inductive synchronizer to obtain the static measurement result corresponding to each specified angle includes: The angle information output by the precision channel is collected based on a preset sampling frequency to obtain a static collection result of the precision channel; While collecting data on the fine channel, the angle information output by the coarse channel is synchronously collected based on the preset sampling frequency to obtain a static collection result of the coarse channel.

5. The method according to claim 1, wherein The induction synchronizer is provided with a plurality of temperature measurement points, and the temperature characteristic measurement result of the induction synchronizer is determined according to the static measurement results corresponding to the ambient temperature and the plurality of specified angles, including: Obtaining the ambient temperature corresponding to each of the temperature measurement points and the static measurement results corresponding to each of the multiple specified angles, and normalizing the ambient temperature and the static measurement results to obtain normalized temperature data and normalized static measurement data; Fitting the normalized temperature data and the normalized static measurement data corresponding to each temperature measurement point respectively to obtain an initial temperature rise fitting curve and an initial temperature drop fitting curve corresponding to each temperature measurement point; Performing discrete mean calculation on the initial temperature rise fitting curve of each of the temperature measurement points to obtain target temperature rise fitting curves corresponding to each of the multiple specified angles, and performing discrete mean calculation on the initial temperature drop fitting curve of each of the temperature measurement points to obtain target temperature drop fitting curves corresponding to each of the multiple specified angles; The target temperature increase fitting curve and the target temperature decrease fitting curve are averaged to obtain average temperature change characteristic curves corresponding to the plurality of specified angles, and the temperature characteristic measurement result is determined using the average temperature change characteristic curves.

6. The method according to claim 3, characterized in that After determining the temperature characteristic measurement result of the inductive synchronizer according to the ambient temperature and the static measurement result, the method further includes: Adjusting the ambient temperature of the measurement environment to the lower temperature limit, and gradually adjusting the ambient temperature from the lower temperature limit to the upper temperature limit according to the preset step size; After each adjustment, the rotating mechanism is controlled to rotate at a constant speed within a preset angle range, and during the constant rotation, the actual angle of the rotating mechanism and the angle information output by the inductive synchronizer corresponding to the ambient temperature are dynamically collected to obtain a dynamic measurement result; determining a temperature characteristic reference result of the inductive synchronizer according to the actual angle, the dynamic measurement result, and the corresponding ambient temperature; The temperature characteristic measurement result is verified using the temperature characteristic reference result. If the temperature characteristic reference result and the temperature characteristic measurement result meet a preset matching condition, it is determined that the temperature characteristic measurement result passes the verification.

7. The method according to claim 6, characterized in that The controlling the rotating mechanism to rotate at a uniform speed within a preset angle range includes: Determine the lower limit and upper limit of the preset angle range; Control the rotating mechanism to rotate at a constant speed from the lower limit of the angle to the upper limit of the angle, and then rotate at a constant speed from the upper limit of the angle to the lower limit of the angle; The lower limit of the angle is smaller than the minimum value of the specified angles, and the upper limit of the angle is larger than the maximum value of the specified angles.

8. A device for measuring the temperature characteristics of an induction synchronizer in a vacuum environment, characterized in that: The inductive synchronizer is set in a vacuum and temperature-variable measurement environment, and the device includes: a rotation control module, configured to control the rotation mechanism of the induction synchronizer to rotate to and lock each designated angle, wherein the designated angle is determined based on phase information corresponding to an electrical cycle of a fine channel of the induction synchronizer; a first temperature adjustment module, configured to adjust the ambient temperature of the measurement environment to vary between preset temperature ranges corresponding to each of the specified angles when the rotation mechanism is locked; The static measurement module is used to statically collect the angle information output by the inductive synchronizer corresponding to the ambient temperature during the change of the ambient temperature to obtain a static measurement result, and determine the temperature characteristic measurement result of the inductive synchronizer based on the ambient temperature and the static measurement result.

9. The device according to claim 8, characterized in that The device further comprises: a second temperature adjustment module, configured to, after obtaining the static measurement result, determine an upper temperature limit and a lower temperature limit of the preset temperature range, adjust the ambient temperature of the measurement environment to the lower temperature limit, and gradually adjust the ambient temperature from the lower temperature limit to the upper temperature limit according to a preset step size; a dynamic measurement module, configured to control the rotating mechanism to rotate at a constant speed within a preset angle range after each adjustment, and dynamically collect angle information output by the inductive synchronizer corresponding to the ambient temperature during the uniform rotation of the rotating mechanism to obtain a dynamic measurement result, and determine a reference result of the temperature characteristic of the inductive synchronizer based on the ambient temperature and the dynamic measurement result; The verification module is configured to verify the temperature characteristic measurement result using the temperature characteristic reference result, and determine that the temperature characteristic measurement result passes the verification if the temperature characteristic reference result and the temperature characteristic measurement result meet a preset matching condition.

10. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for measuring the temperature characteristics of an induction synchronizer under a vacuum environment according to any one of claims 1 to 7 by executing the computer instructions.

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