Method and device for detecting the measurement accuracy of blade tip sensor simulating rotating turbine blades

Abstract

The present invention discloses a blade tip sensor measurement accuracy detection method and device for simulating rotating turbine blades, and relates to the field of engine measurement technology. The method comprises: building a blade tip sensor measurement accuracy detection device; performing zeroing and retraction processing in sequence according to the blade tip sensor measurement accuracy detection device to obtain a standard distance value; obtaining a measurement voltage value based on the standard distance value using the blade tip sensor measurement accuracy detection device; and obtaining a blade sensor measurement accuracy detection result by performing detection according to the standard distance value and the measurement voltage value. The present invention simulates the monitoring behavior of the blade tip sensor on the rotating turbine blades in a real high temperature environment, and can more accurately and effectively complete the calibration or accuracy detection of the blade tip sensor.

Description

Technical Field

[0001] The invention belongs to the technical field of engine measurement, and in particular relates to a method and a device for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade. Background Art

[0002] The tip clearance (radial clearance between the blade end and the inner wall of the casing) and blade vibration parameters of the engine turbine blade directly reflect the rotor operation status and dynamic characteristics, and are related to the efficiency and safety of the rotor and even the entire unit. Real-time online high-precision monitoring of the two is a crucial link. Domestic and foreign related enterprises and research institutions have invested a lot of resources in related research and have achieved certain results. By installing different forms of non-contact tip sensors on the engine casing, according to their respective measurement principles, the tip clearance and blade vibration data of the turbine blade when it sweeps over the sensor can be obtained in real time online, which is an extremely attractive means of online monitoring of engine turbine tip clearance and vibration parameters.

[0003] Before using the tip sensor, it is generally necessary to calibrate or perform accuracy testing according to the test environment to ensure that its function and performance are normal and meet the requirements. When the real engine turbine blades rotate, the ambient temperature can reach 1600°C. However, the current calibration or accuracy testing work is either static or dynamic calibration in a laboratory environment, or does not consider high-temperature rotating turbine blades, and only verifies the function of the tip sensor at high temperature. It is impossible to truly simulate the interaction between the rotating turbine blades and the tip sensor in a high-temperature environment, especially it is impossible to clearly give the assessment conclusions of the clearance and vibration measurement accuracy, resolution, functional integrity, etc. at high temperatures. Summary of the invention

[0004] The purpose of the present invention is to propose a blade tip sensor measurement accuracy detection device and method for simulating rotating turbine blades, so as to overcome the defects of the existing methods and ensure that the blade tip sensor can work stably and accurately in the industrial field.

[0005] On the one hand, to achieve the above-mentioned purpose, the present application provides a method for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade, comprising the following steps:

[0006] Build a blade tip sensor measurement accuracy detection device;

[0007] According to the blade tip sensor measurement accuracy detection device, zeroing and retraction processing are performed in sequence to obtain a standard distance value;

[0008] Based on the standard distance value, the blade tip sensor measurement accuracy detection device is used to obtain a measurement voltage value;

[0009] The blade sensor measurement accuracy test result is obtained by performing a test based on the standard distance value and the measured voltage value.

[0010] Optionally, the blade tip sensor measurement accuracy detection device comprises: a simulated rotating blade, a blade tip sensor, a temperature measuring thermocouple and a fixture;

[0011] The simulated rotating blade is installed on the rotating mechanism, and the blade tip sensor and the temperature measuring thermocouple are installed on the displacement mechanism through the clamp;

[0012] The blade tip sensor measurement accuracy detection device is placed in a transversely arranged channel inside the high-temperature furnace, the blade tip sensor and the probe end of the temperature measuring thermocouple extend horizontally into the high-temperature furnace through the left channel of the high-temperature furnace, and the blade end of the simulated rotating blade extends horizontally into the high-temperature furnace from the right channel of the high-temperature furnace;

[0013] Support platforms are placed on both sides of the channel of the high-temperature furnace, the displacement mechanism and the rotation mechanism are placed on the support platforms, the fixture is connected to the air cooling structure, the blade tip sensor is connected to the data acquisition system, and the temperature measuring thermocouple is connected to the temperature control device.

[0014] Optionally, the blade tip sensor measurement accuracy detection device sequentially performs zeroing and retraction processing to obtain a standard distance value, including:

[0015] The position zero point of the blade tip sensor and the simulated rotation is obtained by using the displacement mechanism, the blade tip sensor and the simulated rotating blade of the blade tip sensor measurement accuracy detection device;

[0016] Based on the position zero point adjustment of the blade tip sensor and the simulated rotation, the distance between the blade tip sensor and the simulated rotating blade is obtained by using the displacement mechanism as the standard distance value.

[0017] Optionally, obtaining the measured voltage value by using the blade tip sensor measurement accuracy detection device based on the standard distance value includes:

[0018] Turning on the rotating mechanism, adjusting the rotation speed, and driving the simulated rotating blades to rotate;

[0019] Opening the air cooling structure to blow cooling air into the fixture;

[0020] Turning on the high temperature furnace and the temperature control device, setting a simulated temperature, and monitoring the simulated temperature value in real time through the temperature measuring thermocouple and the temperature control device;

[0021] Turning on the data acquisition system, monitoring the blade tip sensor in real time, and measuring the signal change and voltage measurement value of the simulated rotating blade;

[0022] Based on the standard distance value, the distance between the blade tip sensor and the simulated rotating blade is adjusted using the displacement mechanism of the blade tip sensor measurement accuracy detection device to obtain the horizontal movement distance of the blade tip sensor as the measurement voltage value.

[0023] On the other hand, to achieve the above-mentioned purpose, the present application provides a blade tip sensor measurement accuracy detection device for simulating a rotating turbine blade, comprising: a simulated rotating blade, a blade tip sensor, a temperature measuring thermocouple and a fixture;

[0024] The simulated rotating blade is installed on the rotating mechanism, and the blade tip sensor and the temperature measuring thermocouple are installed on the displacement mechanism through the clamp;

[0025] The blade tip sensor measurement accuracy detection device is placed in a transversely arranged channel inside the high-temperature furnace, the blade tip sensor and the probe ends of the temperature measuring thermocouple extend horizontally into the high-temperature furnace through the left channel of the high-temperature furnace, and the blade end of the simulated rotating blade extends horizontally into the high-temperature furnace from the right channel of the high-temperature furnace;

[0026] Support platforms are placed on both sides of the channel of the high-temperature furnace, the displacement mechanism and the rotation mechanism are placed on the support platforms, the fixture is connected to the air cooling structure, the blade tip sensor is connected to the data acquisition system, and the temperature measuring thermocouple is connected to the temperature control device.

[0027] Optionally, the support platform includes a first support platform and a second support platform, the displacement mechanism is placed on the first support platform, the rotation mechanism is placed on the second support platform, and the first support platform is arranged on the left side of the channel of the high-temperature furnace, and the second support platform is arranged on the right side of the channel of the high-temperature furnace.

[0028] Optionally, the displacement mechanism controls the positional relationship between the blade tip sensor and the simulated rotating blade by driving the blade tip sensor to move, wherein the blade end of the simulated rotating blade and the probe end of the blade tip sensor form a non-contact blade tip gap and a monitoring relationship in the high-temperature furnace.

[0029] Optionally, the rotating mechanism rotates by driving the simulated rotating blades.

[0030] Compared with the closest prior art, the present invention has the following beneficial effects:

[0031] The blade tip sensor measurement accuracy detection device for simulating rotating turbine blades provided by the present invention can fully simulate the real high temperature environment and blade rotation state; the blade tip sensor measurement accuracy detection method for simulating rotating turbine blades proposed by the present invention solves the problem that the current blade tip sensor cannot realize calibration or accuracy detection under high temperature and blade rotation state, and drives the displacement mechanism to change the working distance between the blade tip sensor and the rotating blade, so as to realize the gap calibration, gap measurement accuracy verification and other verification tests under high temperature and blade rotation state; through the method and device of the present invention, various test purposes such as blade tip sensor calibration, measurement accuracy verification, function verification and the like under the environment of simulating real high temperature and blade rotation state can be met, thereby ensuring that the blade tip sensor can work stably, reliably and effectively when applied in industrial field.

[0032] The present invention utilizes a rotating mechanism outside the high-temperature furnace to drive the blades to rotate, utilizes a displacement mechanism to drive the blade tip sensor to move to generate a reference value required for calibration or precision detection, utilizes an air-cooling structure to protect the blade tip sensor cable from overheating, and utilizes an external data acquisition system to monitor in real time the signal changes and measurement accuracy of the blades measured by the blade tip sensor, thereby simulating the monitoring behavior of the blade tip sensor on the rotating turbine blades in a real high-temperature environment, and can more accurately and effectively complete the calibration or precision detection of the blade tip sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a flow chart of a method for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade according to an embodiment of the present invention;

[0035] Figure 2 It is a practical flow chart of the blade tip sensor measurement accuracy detection method according to an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a blade tip sensor measurement accuracy detection device for simulating a rotating turbine blade according to an embodiment of the present invention;

[0037] Figure 4 This is a signal waveform diagram of the data acquisition system proposed in an embodiment of the present invention under high temperature and rotating conditions;

[0038] Figure 5 This is a diagram of the blade tip sensor calibration result proposed in an embodiment of the present invention;

[0039] The description of the accompanying drawings is as follows: 1. high temperature furnace; 2. rotating mechanism; 3. supporting platform; 4. air cooling structure; 5. temperature control device; 6. data acquisition system; 7. simulated rotating blade; 8. blade tip sensor; 9. temperature measuring thermocouple; 10. fixture; 11. displacement mechanism. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0041] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0042] In order to solve the shortcomings of existing blade tip sensor calibration or accuracy detection, the present invention provides a blade tip sensor measurement accuracy detection method and device for simulating rotating turbine blades. The method and device insert rotating blades and blade tip sensors at both ends of a high-temperature furnace respectively, and the rotation state of the blades, high temperature environment, and non-contact blade tip clearance and vibration monitoring relative position relationship are formed inside the high-temperature furnace.

[0043] like Figure 1 As shown, an embodiment of the present invention provides a method for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade, comprising the following steps:

[0044] Build a blade tip sensor measurement accuracy detection device;

[0045] According to the blade tip sensor measurement accuracy detection device, zeroing and retraction processing are performed in sequence to obtain a standard distance value;

[0046] Based on the standard distance value, the blade tip sensor measurement accuracy detection device is used to obtain a measurement voltage value;

[0047] The blade sensor measurement accuracy test result is obtained by performing a test based on the standard distance value and the measured voltage value.

[0048] Specifically, Figure 2 As shown, a blade tip sensor measurement accuracy detection device simulating a rotating turbine blade is constructed; zeroing and retraction are performed; equipment in the device is turned on; blade tip sensor measurement accuracy detection is performed when the blade is in a rotating state and a high temperature environment; and the result of the calibration or accuracy detection is determined.

[0049] The blade tip sensor measurement accuracy detection device comprises: a simulated rotating blade, a blade tip sensor, a temperature measuring thermocouple and a fixture;

[0050] The simulated rotating blade is installed on the rotating mechanism, and the blade tip sensor and the temperature measuring thermocouple are installed on the displacement mechanism through the clamp;

[0051] The blade tip sensor measurement accuracy detection device is placed in a transversely arranged channel inside the high-temperature furnace, the blade tip sensor and the probe ends of the temperature measuring thermocouple extend horizontally into the high-temperature furnace through the left channel of the high-temperature furnace, and the blade end of the simulated rotating blade extends horizontally into the high-temperature furnace from the right channel of the high-temperature furnace;

[0052] Support platforms are placed on both sides of the channel of the high-temperature furnace, the displacement mechanism and the rotation mechanism are placed on the support platforms, the fixture is connected to the air cooling structure, the blade tip sensor is connected to the data acquisition system, and the temperature measuring thermocouple is connected to the temperature control device.

[0053] Specifically, a blade tip sensor measurement accuracy detection device simulating a rotating turbine blade is constructed, and the blade tip sensor measurement accuracy detection device comprises: two support platforms 3 are respectively placed on both sides of the channel of the high temperature furnace 1, and the displacement mechanism 11 and the rotation mechanism 2 are respectively placed on the two support platforms 3. The blade tip sensor 8 and the temperature measuring thermocouple 9 are installed on the displacement mechanism 11 through the fixture 10, and the probe ends of the two extend horizontally into the high temperature furnace 1 through a certain channel of the high temperature furnace 1, and the other end of the blade tip sensor 8 is connected to the data acquisition system 6, and the other end of the temperature measuring thermocouple 9 is connected to the temperature control device 5. The air cooling structure 4 is connected to the fixture 10. The simulated rotating blade 7 is installed on the rotation mechanism 2, and the blade end extends horizontally into the high temperature furnace 1 from another channel of the high temperature furnace 1. The blade end of the simulated rotating blade 7 and the probe end of the blade tip sensor 8 form a non-contact blade gap and vibration monitoring relationship in the high temperature furnace 1.

[0054] The standard distance value is obtained by sequentially performing zeroing and retraction processing according to the blade tip sensor measurement accuracy detection device, including:

[0055] The position zero point of the blade tip sensor and the simulated rotation is obtained by using the displacement mechanism, the blade tip sensor and the simulated rotating blade of the blade tip sensor measurement accuracy detection device;

[0056] Based on the position zero point adjustment of the blade tip sensor and the simulated rotation, the distance between the blade tip sensor and the simulated rotating blade is obtained by using the displacement mechanism as the standard distance value.

[0057] Specifically, zeroing and retraction include: adjusting the displacement mechanism 11, moving the blade tip sensor 8 horizontally, and the probe end face of the blade tip sensor 8 lightly contacts the end face of the simulated rotating blade 7 as the position zero point of the blade tip sensor 8 and the simulated rotating blade 7. In order to avoid collision between the simulated rotating blade 7 and the blade tip sensor 8 when the simulated rotating blade 7 rotates, the displacement mechanism 11 is adjusted so that the blade tip sensor 8 and the simulated rotating blade 7 deviate from the zero point position, and a fixed small gap is generated. In this embodiment, the retraction amount between the blade tip sensor 8 and the simulated rotating blade 7 is set to 0.3 mm.

[0058] Acquiring a measured voltage value based on the standard distance value by using the blade tip sensor measurement accuracy detection device includes:

[0059] Turning on the rotating mechanism, adjusting the rotation speed, and driving the simulated rotating blades to rotate;

[0060] Opening the air cooling structure to blow cooling air into the fixture;

[0061] Turning on the high temperature furnace and the temperature control device, setting a simulated temperature, and monitoring the simulated temperature value in real time through the temperature measuring thermocouple and the temperature control device;

[0062] Turning on the data acquisition system, monitoring the blade tip sensor in real time, and measuring the signal change and voltage measurement value of the simulated rotating blade;

[0063] Based on the standard distance value, the distance between the blade tip sensor and the simulated rotating blade is adjusted using the displacement mechanism of the blade tip sensor measurement accuracy detection device to obtain the horizontal movement distance of the blade tip sensor as the measurement voltage value.

[0064] Specifically, the device in the blade tip sensor measurement accuracy detection device for simulating the rotating turbine blade is turned on, including:

[0065] Turn on the rotating mechanism 2, adjust the speed according to the demand, and drive the simulated rotating blade 7 to rotate. In this embodiment, the speed is adjusted to 1000r / min;

[0066] Open the air cooling structure 4 and blow cooling air into the fixture 10 to protect the cable of the blade tip sensor 8 from overheating;

[0067] Turn on the high temperature furnace 1 and the temperature control device 5, set the simulated temperature according to the actual working environment temperature of the turbine blade, and monitor the simulated temperature value in real time through the temperature measuring thermocouple 9 and the temperature control device 5, wherein the simulated temperature is set to 1400°C in this embodiment;

[0068] The data acquisition system 6 is turned on to monitor the blade tip sensor 8 in real time, and the signal change and voltage measurement value of the simulated rotating blade 7 are measured. The signal waveform of a simulated rotating blade 7 passing through the blade tip sensor 8 detected by the data acquisition system 6 is as follows: Figure 4 As shown, the detection voltage of the data acquisition system 6 is U.

[0069] Carrying out the tip sensor measurement accuracy test of the simulated rotating blade in a rotating state and a high temperature environment includes: adjusting the displacement mechanism 11, moving the tip sensor 8 horizontally, and increasing the distance between the tip sensor 8 and the simulated rotating blade 7 from 0.3mm to 3.6mm with a step distance of 0.2mm, wherein the horizontal movement distance of the tip sensor 8 (relative to the zero value) is used as the standard value for calibration or accuracy detection, and recording the corresponding measurement voltage value of the data acquisition system 6 at each step of movement, and repeating this process until the requirements of calibration or accuracy detection are met.

[0070] Determining the result of the calibration or accuracy test includes: analyzing the data obtained by performing the blade tip sensor measurement accuracy test when the blade is in a rotating state and a high temperature environment, fitting the relationship curve between the measured voltage value of the data acquisition system 6 and the standard distance value of the calibration or accuracy test, and obtaining the calibration result of the blade tip sensor 8, such as Figure 5 As shown, the horizontal axis is the inverse of the monitored peak-to-peak value of the voltage, expressed as 1 / V, and the vertical axis d represents the standard value of the gap generated by the movement of the adjustment displacement mechanism 11.

[0071] like Figure 3 As shown, the embodiment of the present invention provides a blade tip sensor measurement accuracy detection device for simulating a rotating turbine blade, comprising: a simulated rotating blade 7, a blade tip sensor 8, a temperature measuring thermocouple 9 and a fixture 10;

[0072] The simulated rotating blade 7 is installed on the rotating mechanism 2, and the blade tip sensor 8 and the temperature measuring thermocouple 9 are installed on the displacement mechanism 11 through the clamp 10;

[0073] The blade tip sensor measurement accuracy detection device is placed in a transversely arranged channel inside the high temperature furnace 1, the blade tip sensor 8 and the probe ends of the temperature measuring thermocouple 9 extend horizontally into the high temperature furnace 1 through the left channel of the high temperature furnace 1, and the blade end of the simulated rotating blade 7 extends horizontally into the high temperature furnace 1 from the right channel of the high temperature furnace 1;

[0074] Support platforms 3 are placed on both sides of the channel of the high-temperature furnace 1, the displacement mechanism 11 and the rotation mechanism 2 are placed on the support platform 3, the clamp 10 is connected to the air cooling structure 4, the blade tip sensor 8 is connected to the data acquisition system 6, and the temperature measuring thermocouple 9 is connected to the temperature control device 5.

[0075] The supporting platform 3 includes a first supporting platform and a second supporting platform, the displacement mechanism 11 is placed on the first supporting platform, the rotating mechanism 2 is placed on the second supporting platform, and the first supporting platform is arranged on the left side of the channel of the high-temperature furnace 1, and the second supporting platform is arranged on the right side of the channel of the high-temperature furnace 1.

[0076] The displacement mechanism 11 controls the positional relationship between the blade tip sensor 8 and the simulated rotating blade 7 by driving the blade tip sensor 8 to move, wherein the blade end of the simulated rotating blade 7 and the probe end of the blade tip sensor 8 form a non-contact blade tip gap and a monitoring relationship in the high-temperature furnace 1.

[0077] The rotating mechanism 2 rotates by driving the simulated rotating blades 7 .

[0078] Specifically, the tip sensor measurement accuracy detection device for simulating the rotating turbine blade includes: a high-temperature furnace 1 with two left and right channels, a rotating mechanism 2, a supporting platform 3, an air-cooling structure 4, a temperature control device 5, a data acquisition system 6, a simulated rotating blade 7, a tip sensor 8, a temperature measuring thermocouple 9, a fixture 10, and a displacement mechanism 11.

[0079] The support platform 3 is used to support the rotating mechanism 2 and the displacement mechanism 11, and the high-temperature furnace 1 is used to provide a high-temperature environment. The probes of the blade tip sensor 8 and the temperature measuring thermocouple 9 extend from a certain channel into the high-temperature furnace 1 through the fixture 10 installed on the displacement mechanism 11. The data acquisition system 6 is connected to the blade tip sensor 8 to monitor the signal changes and measurement accuracy data of the blade tip sensor 8 in real time. The temperature control device 5 is connected to the temperature measuring thermocouple 9 to monitor the temperature in the high-temperature furnace 1 in real time. The air cooling structure 4 blows cooling air into the fixture 10 to protect the blade tip sensor 8 cable from overheating. The blade end of the simulated rotating blade 7 extends into the high-temperature furnace from another channel, and the other end is connected to the rotating mechanism 2, and the rotating mechanism 2 drives the simulated rotating blade 7 to rotate. The displacement mechanism 11 drives the blade tip sensor 8 to move and control the positional relationship between the blade tip sensor 8 and the simulated rotating blade 7. Through the above connection and control relationship, the high-temperature environment, blade rotation state, and non-contact blade gap and vibration monitoring behavior are realized in the high-temperature furnace.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade, characterized in that: The specific steps include: Build a blade tip sensor measurement accuracy detection device; The blade tip sensor measurement accuracy detection device comprises: a simulated rotating blade, a blade tip sensor, a temperature measuring thermocouple and a fixture; The simulated rotating blade is installed on the rotating mechanism, and the blade tip sensor and the temperature measuring thermocouple are installed on the displacement mechanism through the clamp; The blade tip sensor measurement accuracy detection device is placed in a transversely arranged channel inside the high-temperature furnace, the blade tip sensor and the probe end of the temperature measuring thermocouple extend horizontally into the high-temperature furnace through the left channel of the high-temperature furnace, and the blade end of the simulated rotating blade extends horizontally into the high-temperature furnace from the right channel of the high-temperature furnace; Support platforms are placed on both sides of the channel of the high-temperature furnace, the displacement mechanism and the rotation mechanism are placed on the support platforms, the fixture is connected to the air cooling structure, the blade tip sensor is connected to the data acquisition system, and the temperature measuring thermocouple is connected to the temperature control device; According to the blade tip sensor measurement accuracy detection device, zeroing and retraction processing are performed in sequence to obtain a standard distance value; The standard distance value is obtained by sequentially performing zeroing and retraction processing according to the blade tip sensor measurement accuracy detection device, including: The position zero point of the blade tip sensor and the simulated rotation is obtained by using the displacement mechanism, the blade tip sensor and the simulated rotating blade of the blade tip sensor measurement accuracy detection device; Based on the position zero point adjustment of the blade tip sensor and the simulated rotation, the displacement mechanism is used to obtain the distance between the blade tip sensor and the simulated rotating blade as the standard distance value; Based on the standard distance value, the blade tip sensor measurement accuracy detection device is used to obtain a measurement voltage value; Acquiring a measured voltage value based on the standard distance value by using the blade tip sensor measurement accuracy detection device includes: Turning on the rotating mechanism, adjusting the rotation speed, and driving the simulated rotating blades to rotate; Opening the air cooling structure to blow cooling air into the fixture; Turning on the high temperature furnace and the temperature control device, setting a simulated temperature, and monitoring the simulated temperature value in real time through the temperature measuring thermocouple and the temperature control device; Turning on the data acquisition system, monitoring the blade tip sensor in real time, and measuring the signal change and voltage measurement value of the simulated rotating blade; Based on the standard distance value, the distance between the blade tip sensor and the simulated rotating blade is adjusted by using the displacement mechanism of the blade tip sensor measurement accuracy detection device to obtain the horizontal movement distance of the blade tip sensor as the measurement voltage value; The blade sensor measurement accuracy test result is obtained by performing a test based on the standard distance value and the measured voltage value.

2. A device for detecting the measurement accuracy of a blade tip sensor simulating a rotating turbine blade, implementing the method according to claim 1, characterized in that: include: Simulated rotating blades (7), blade tip sensors (8), temperature measuring thermocouples (9) and fixtures (10); The simulated rotating blade (7) is mounted on the rotating mechanism (2), and the blade tip sensor (8) and the temperature measuring thermocouple (9) are mounted on the displacement mechanism (11) via the fixture (10); The blade tip sensor measurement accuracy detection device is placed in a channel arranged transversely inside the high temperature furnace (1); the probe ends of the blade tip sensor (8) and the temperature measuring thermocouple (9) extend horizontally into the high temperature furnace (1) through the left channel of the high temperature furnace (1); and the blade end of the simulated rotating blade (7) extends horizontally into the high temperature furnace (1) from the right channel of the high temperature furnace (1); Support platforms (3) are placed on both sides of the channel of the high-temperature furnace (1), the displacement mechanism (11) and the rotation mechanism (2) are placed on the support platforms (3), the clamp (10) is connected to the air cooling structure (4), the blade tip sensor (8) is connected to the data acquisition system (6), and the temperature measuring thermocouple (9) is connected to the temperature control device (5).

3. The blade tip sensor measurement accuracy detection device for simulating rotating turbine blades according to claim 2, characterized in that: The support platform (3) comprises a first support platform and a second support platform, the displacement mechanism (11) is placed on the first support platform, the rotation mechanism (2) is placed on the second support platform, and the first support platform is arranged on the left side of the channel of the high-temperature furnace (1), and the second support platform is arranged on the right side of the channel of the high-temperature furnace (1).

4. The blade tip sensor measurement accuracy detection device for simulating rotating turbine blades according to claim 2, characterized in that: The displacement mechanism (11) controls the positional relationship between the blade tip sensor (8) and the simulated rotating blade (7) by driving the blade tip sensor (8) to move, wherein the blade end of the simulated rotating blade (7) and the probe end of the blade tip sensor (8) form a non-contact blade tip gap and a monitoring relationship in the high-temperature furnace (1).

5. The blade tip sensor measurement accuracy detection device for simulating rotating turbine blades according to claim 2, characterized in that: The rotating mechanism (2) rotates by driving the simulated rotating blades (7).

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