Junction box testing method, device and equipment of autoclave and medium

Abstract

The invention provides a junction box testing method, device, equipment and medium for an autoclave, and relates to the technical field of autoclave equipment performance detection.In the testing process, the measuring end of a first testing thermocouple is fixed to the center point in the autoclave, and the reference end of the first testing thermocouple is connected to a first temperature calibrator outside the autoclave; the second test thermocouple is divided into a first thermocouple section and a second thermocouple section, the measuring end of the first thermocouple section is fixed at the central point in the autoclave, the reference end of the first thermocouple section is connected to a junction box in the autoclave, one end of the second thermocouple section is connected to a junction box outside the autoclave, and the other end of the second thermocouple section is connected to a second temperature calibrator; closing a tank door of the autoclave, turning on a power supply, and turning on a control system of the autoclave; after the indication temperature of the autoclave reaches the preset temperature, a first initial error of the junction box is obtained according to the first indication value of the first temperature calibrator and the second indication value of the second temperature calibrator; the method simulates the actual working environment of the autoclave and effectively tests the error of the junction box.

Description

Technical Field

[0001] The present application relates to the technical field of autoclave equipment performance detection, and provides a wiring box testing method, device, equipment and medium for an autoclave. Background Art

[0002] The curing process of aviation composite materials usually uses an autoclave to ensure that the materials are cured uniformly under high temperature and high pressure conditions. System accuracy testing and furnace temperature uniformity testing are important indicators for identifying the performance of autoclave equipment. During the system accuracy testing and furnace temperature uniformity testing processes, the error of the wiring box needs to be corrected. Therefore, it is necessary to test the error of the wiring box to ensure the accuracy of the system accuracy testing and temperature uniformity testing.

[0003] In the prior art, the wiring box inside the autoclave is connected to a standard thermocouple, heated to the standard temperature, and the difference between the displayed value and the true value is checked to obtain the error of the thermocouple wiring box. However, during the actual operation of the autoclave, the wiring box inside the tank is in a heated and sealed environment, and the thermoelectromotive force generated by it is different from the thermoelectromotive force generated by the ambient temperature (room temperature). This method inserts the standard thermocouple into the temperature source and places the wiring box at the ambient temperature instead of the standard temperature, so the obtained wiring box error is inaccurate.

[0004] Therefore, how to effectively test the error of the wiring box of the autoclave is an urgent problem to be solved at present. Summary of the Invention

[0005] The present application provides a wiring box testing method, device, equipment and medium for an autoclave, which is used to solve the problem of how to effectively test the error of the wiring box of the autoclave.

[0006] In a first aspect, a wiring box testing method for an autoclave is provided, which is applied to a temperature measurement system. The temperature measurement system includes a No. 1 temperature calibrator, a No. 2 temperature calibrator, a No. 1 test thermocouple, and a No. 2 test thermocouple. The method includes:

[0007] During the test, fix the measuring end of the No. 1 test thermocouple at the center point inside the autoclave, and connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator; divide the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fix the measuring end of the first section of thermocouple at the center point inside the tank, connect the reference end of the first section of thermocouple to the first-channel wiring terminal of the wiring box inside the autoclave, connect one end of the second section of thermocouple to the first-channel wiring terminal of the wiring box outside the autoclave, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator;

[0008] Close the door of the autoclave, turn on the power, and activate the control system of the autoclave;

[0009] After the indicated temperature of the autoclave reaches the preset temperature, record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment;

[0010] Obtain the first initial error of the junction box according to the first indication value and the second indication value.

[0011] Optionally, after obtaining the first initial error of the junction box according to the first indication value and the second indication value, the method further includes:

[0012] Record the third indication value of the No. 1 temperature calibrator and the fourth indication value of the No. 2 temperature calibrator at the second moment;

[0013] Obtain the second initial error of the junction box according to the third indication value and the fourth indication value;

[0014] Determine the maximum value of the first initial error and the second initial error as the final error of the junction box.

[0015] Optionally, the obtaining the first initial error of the junction box according to the first indication value and the second indication value includes:

[0016] Determine the difference between the first indication value and the first system indication error as the first error; the first system indication error is the system indication error measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source;

[0017] Determine the difference between the second indication value and the second system indication error as the second error; the second system indication error is the system indication error measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source;

[0018] Determine the difference between the second error and the first error as the first initial error of the junction box.

[0019] Optionally, before the test process, the method further includes:

[0020] Connect the No. 1 test thermocouple to the No. 1 temperature calibrator to form a first complete set of temperature instruments, and connect the No. 2 test thermocouple to the No. 2 temperature calibrator to form a second complete set of temperature instruments;

[0021] Insert the No. 1 test thermocouple in the first complete set of temperature instruments and the No. 2 test thermocouple in the second complete set of temperature instruments into the temperature source at the same time;

[0022] Record the fifth indication value of the temperature calibrator No. 1 in the first set of temperature instruments, and the sixth indication value of the temperature calibrator No. 2 in the second set of temperature instruments;

[0023] Determine the difference between the fifth indication value and the actual temperature of the temperature source measured by the standard device as the indication error of the first system;

[0024] Determine the difference between the sixth indication value and the actual temperature of the temperature source measured by the standard device as the indication error of the second system.

[0025] Optionally, before inserting the test thermocouple No. 1 in the first set of temperature instruments and the test thermocouple No. 2 in the second set of temperature instruments into the temperature source at the same time, the method further includes:

[0026] Determine the highest temperature, the lowest temperature, and the intermediate temperature in the operating temperature range of the autoclave as the test temperatures respectively;

[0027] Adopt a temperature source corresponding to the test temperature.

[0028] Optionally, before determining the highest temperature, the lowest temperature, and the intermediate temperature in the operating temperature range of the autoclave as the test temperatures respectively, the method further includes:

[0029] Divide the difference between the highest temperature and the lowest temperature in the operating temperature range of the autoclave by 3, and then add the lowest temperature to obtain the intermediate temperature.

[0030] Optionally, after the indicated temperature of the autoclave reaches the preset temperature, recording the first indication value of the temperature calibrator No. 1 and the second indication value of the temperature calibrator No. 2 at the first moment includes:

[0031] After the indicated temperature of the autoclave reaches the preset temperature and the indicated temperature remains stable for a preset duration, record the first indication value of the temperature calibrator No. 1 and the second indication value of the temperature calibrator No. 2 at the first moment.

[0032] In a second aspect, a wiring box test device for an autoclave is provided. The device is arranged in a temperature measurement system, and the temperature measurement system includes a temperature calibrator No. 1, a temperature calibrator No. 2, a test thermocouple No. 1, and a test thermocouple No. 2; the device includes:

[0033] A connection module, configured to fix the measurement end of the No. 1 test thermocouple at the center point inside the autoclave during the test process, and connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator; divide the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fix the measurement end of the first section of thermocouple at the center point inside the autoclave, connect the reference end of the first section of thermocouple to the first-channel wiring terminal of the in-autoclave junction box, connect one end of the second section of thermocouple to the first-channel wiring terminal of the out-of-autoclave junction box, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator;

[0034] A start module, configured to close the door of the autoclave, turn on the power, and start the control system of the autoclave;

[0035] A recording module, configured to record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at a first moment after the indicated temperature of the autoclave reaches a preset temperature.

[0036] An obtaining module, configured to obtain a first initial error of the junction box according to the first indication value and the second indication value.

[0037] In a third aspect, the present application provides a computer device, which includes a memory and a processor. A computer program is stored in the memory, and when the processor executes the computer program, the method for testing the junction box of the autoclave described in the first aspect is implemented.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored. When a processor executes the computer program, the method for testing the junction box of the autoclave described in the first aspect is implemented.

[0039] Compared with the prior art, the beneficial effects of the present application are as follows:

[0040] The present application provides a method for testing the junction box of an autoclave. This method is applied to a temperature measurement system, which includes a No. 1 temperature calibrator, a No. 2 temperature calibrator, a No. 1 test thermocouple, and a No. 2 test thermocouple. The method includes: during the test, fixing the measurement end of the No. 1 test thermocouple at the center point inside the autoclave, and connecting the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator outside the autoclave; dividing the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fixing the measurement end of the first section of thermocouple at the center point inside the tank, connecting the reference end of the first section of thermocouple to the first-channel wiring terminal of the junction box inside the autoclave, connecting one end of the second section of thermocouple to the first-channel wiring terminal of the junction box outside the autoclave, and connecting the other end of the second section of thermocouple to the No. 2 temperature calibrator; closing the door of the autoclave, turning on the power supply, and starting the control system of the autoclave; after the indicated temperature of the autoclave reaches the preset temperature, recording the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment; obtaining the first initial error of the junction box according to the first indication value and the second indication value.

[0041] The present application can directly test the junction box of the autoclave on site. By closing the door of the autoclave, turning on the power supply, and starting the control system of the autoclave, the actual working environment of the autoclave is restored. The error of the junction box measured in this environment is more accurate, solving the problem of how to effectively test the error of the junction box inside the autoclave. Further, the error of the junction box can be corrected to ensure the accuracy of the temperature value in the system accuracy test and the furnace temperature uniformity test, meeting the detection requirements of the autoclave equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0043] Figure 1 It is a schematic structural diagram of a computer device for the hardware operating environment related to the solution of the embodiment of the present application;

[0044] Figure 2 It is a schematic flow diagram of a method for testing the junction box of an autoclave provided by an embodiment of the present application;

[0045] Figure 3 It is a schematic wiring relationship diagram of the temperature measurement system provided by an embodiment of the present application;

[0046] Figure 4 It is a schematic position diagram of the junction box provided by an embodiment of the present application;

[0047] Figure 5 This is a schematic structural diagram of the junction box testing device for the autoclave provided by the embodiments of the present application.

[0048] Markings in the figure: 101 - Processor, 102 - Communication bus, 103 - Network interface, 104 - User interface, 105 - Memory. Specific embodiments

[0049] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the protection scope of the present application. Without conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0050] Currently, some enterprises use a wireless system to avoid the junction box inside the autoclave, and there is no need to test the error of the junction box, and the system accuracy test and furnace temperature uniformity test can be directly carried out. However, some enterprises cannot use the wireless system for the system accuracy test and furnace temperature uniformity test due to special reasons. Therefore, it is necessary to test the error of the junction box. In the prior art, the junction box inside the autoclave is connected to a standard thermocouple, and the standard thermocouple is inserted into the temperature source. In this way, the junction box is placed in the ambient temperature rather than the standard temperature, and the obtained error of the junction box is inaccurate.

[0051] In view of this, the embodiments of the present application provide a method for testing the junction box of an autoclave. This method is applied to a temperature measurement system. The temperature measurement system includes two temperature calibrators and two test thermocouples. The two temperature calibrators are numbered 1 and 2 respectively, that is, the 1st temperature calibrator and the 2nd temperature calibrator. The temperature calibrator is internally provided with a temperature sensing probe and a battery, and its accuracy level is not lower than 0.02 level. The two test thermocouples are numbered 1 and 2 respectively, that is, the 1st test thermocouple and the 2nd test thermocouple, and the allowable error of their temperature measurement does not exceed ±1.0 °C.

[0052] Please refer to Figure 1 , which is a schematic structural diagram of a computer device for the hardware operating environment related to the solution of the embodiments of the present application.

[0053] As Figure 1As shown in the figure, the computer device may include: a processor 101, such as a Central Processing Unit (CPU), a communication bus 102, a user interface 104, a network interface 103, and a memory 105. Among them, the communication bus 102 is used to realize the connection and communication between these components. The user interface 104 may include a display screen and an input unit such as a keyboard. The user interface 104 may include a standard wired interface and a wireless interface. The network interface 103 may include a standard wired interface and a wireless interface (such as a Wireless-Fidelity (WI-FI) interface). The memory 105 may be a high-speed Random Access Memory (RAM) or a stable non-volatile memory (NVM), such as a disk memory. Optionally, the memory 105 may also be a storage device independent of the aforementioned processor 101.

[0054] Those skilled in the art can understand that Figure 1 the structure shown in the figure does not constitute a limitation on the computer device, and it may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0055] As Figure 1 shown, the memory 105, as a storage medium, may include an operating system, a network communication module, a user interface module, and a wiring box testing device for an autoclave.

[0056] In Figure 1 the computer device shown in the figure, the network interface 103 is mainly used for data communication with a network server; the user interface 104 is mainly used for data interaction with a user; the processor 101 and the memory 105 in the computer device of the present invention may be arranged in the computer device. The computer device calls the wiring box testing device for an autoclave stored in the memory 105 through the processor 101 and executes the wiring box testing method for an autoclave provided in the embodiments of the present application.

[0057] Based on the temperature measurement system of the foregoing embodiments and Figure 1 the computer device shown in the figure, a wiring box testing method for an autoclave shown in Figure 2 the figure will be introduced below.

[0058] S201. During the test, fix the measuring end of the No. 1 test thermocouple at the center point inside the autoclave, and connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator outside the autoclave; divide the No. 2 test thermocouple into the first section of thermocouple and the second section of thermocouple, fix the measuring end of the first section of thermocouple at the center point inside the tank, connect the reference end of the first section of thermocouple to the first-channel terminal of the junction box inside the autoclave, connect one end of the second section of thermocouple to the first-channel terminal of the junction box outside the autoclave, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator.

[0059] Please refer to Figure 3 , which is a schematic diagram of the wiring relationship of the temperature measurement system provided by the embodiment of the present application. The cylinder represents the autoclave, the black dot inside the cylinder represents the center point of the autoclave, the cuboid inside the cylinder represents the junction box, the two rectangular frames outside the cylinder represent two temperature calibrators, and the two solid lines connected to the two rectangular frames represent two test thermocouples.

[0060] Please refer to Figure 4 , which is a schematic diagram of the position of the junction box provided by the embodiment of the present application. The junction box is installed on the wall of the autoclave. There is a junction box inside the autoclave, and there is also a junction box at the corresponding position outside the autoclave. For example, if a junction box has 20 channels, then the junction box inside the autoclave has 20 channels, and the junction box outside the autoclave also has 20 channels. The junction box inside the autoclave is connected to the junction box outside the autoclave through compensating wires.

[0061] The measuring ends of the two test thermocouples, No. 1 and No. 2, are both fixed at the center point. The reference end of the No. 1 test thermocouple is led out of the tank and connected to the thermocouple terminal of the No. 1 temperature calibrator. Lead the No. 2 test thermocouple to the position of the junction box inside the tank, cut it off, and connect it to the first-channel terminal of the junction box. Move the other cut-off section of the No. 2 test thermocouple out of the autoclave, connect one end to the first-channel terminal of the junction box outside the autoclave, and connect the other end to the thermocouple terminal of the No. 2 temperature calibrator.

[0062] S202. Close the door of the autoclave, turn on the power, and start the control system of the autoclave.

[0063] In the specific implementation process, close the door of the autoclave to ensure that the door is completely closed and well sealed, then check whether the power connection is normal, turn on the power switch, then enter the control interface of the autoclave, start the control system, and set the required preset temperature.

[0064] S203. After the indicated temperature of the autoclave reaches the preset temperature, record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment.

[0065] In a possible embodiment, after the indicated temperature of the autoclave reaches the preset temperature and remains stable for a preset duration, the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator are recorded at the first moment.

[0066] In the specific implementation process, observe the indicated temperature of the autoclave until it reaches the preset temperature. After confirming that the indicated temperature reaches the preset temperature, continue to maintain this temperature stable for a preset duration, such as 30 minutes, and then read the indication values of the two temperature calibrators.

[0067] In the embodiment of the present application, maintaining a stable temperature for a certain period of time can ensure that the inside of the system reaches thermal equilibrium, make the measurement results of the temperature calibrator more accurate, and can reduce the influence caused by instantaneous fluctuations, and obtain more stable and reliable indication values of the temperature calibrator.

[0068] S204. Obtain the first initial error of the junction box according to the first indication value and the second indication value.

[0069] In a possible embodiment, the difference between the first indication value and the first system indication error is determined as the first error; the first system indication error is the system indication error measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source; the difference between the second indication value and the second system indication error is determined as the second error; the second system indication error is the system indication error measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source; the difference between the second error and the first error is determined as the first initial error of the junction box.

[0070] For example, the calculation formula of the first initial error is as follows:

[0071] Δt1=(t d -Δt d )-(t s -Δt s )

[0072] In the formula, Δt1 is the first initial error of the junction box, with the unit of °C; t d is the second indication value, that is, the indication value measured by the No. 2 temperature calibrator passing through the junction box at the first moment, with the unit of °C; t s is the first indication value, that is, the indication value of the No. 1 temperature calibrator directly connected to the No. 1 test thermocouple measured at the first moment, with the unit of °C; Δt d is the second system indication error, that is, the system indication error measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source, with the unit of °C; Δt s is the first system indication error, that is, the system indication error measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source, with the unit of °C.

[0073] In a possible embodiment, after obtaining the first initial error of the junction box according to the first indication value and the second indication value, the third indication value of the No. 1 temperature calibrator and the fourth indication value of the No. 2 temperature calibrator are recorded at the second moment; according to the third indication value and the fourth indication value, the second initial error of the junction box is obtained; the maximum value of the first initial error and the second initial error is determined as the final error of the junction box.

[0074] Similarly, the calculation formula is as follows:

[0075] Δt2 = (t' d -Δt d ) - (t' s -Δt s )

[0076] In the formula, Δt2 is the second initial error of the junction box, with the unit of °C; t' d is the fourth indication value, that is, the indication value measured by the No. 2 temperature calibrator passing through the junction box at the second moment, with the unit of °C; t' s is the third indication value, that is, the indication value measured by the No. 1 temperature calibrator directly connected to the No. 1 test thermocouple at the second moment, with the unit of °C; Δt d is the second system indication error, that is, the system indication error measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source, with the unit of °C; Δt s is the first system indication error, that is, the system indication error measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source, with the unit of °C.

[0077] Δt = max(Δt1, Δt2)

[0078] In the formula, Δt is the final error of the junction box, Δt1 is the first initial error of the junction box, and Δt2 is the second initial error of the junction box. Max() represents the maximum value function.

[0079] In the embodiment of the present application, the indication value of the No. 1 temperature calibrator is read twice, the indication value of the No. 2 temperature calibrator is read twice, and the error of the junction box is calculated twice. Through multiple measurements, the influence of accidental errors can be reduced, making the final error evaluation more reliable. Taking the larger error as the final error of the junction box can ensure that the possible maximum deviation is captured, thus better reflecting the performance and potential problems of the junction box.

[0080] As introduced above, how to calculate the error of the junction box is involved, including the first system indication error Δt s and the second system indication error Δt d . Next, how to obtain the first system indication error and the second system indication error will be introduced specifically.

[0081] In a possible embodiment, before the test process, connect the No. 1 test thermocouple to the No. 1 temperature calibrator to form the first set of temperature instruments; connect the No. 2 test thermocouple to the No. 2 temperature calibrator to form the second set of temperature instruments; insert the No. 1 test thermocouple in the first set of temperature instruments and the No. 2 test thermocouple in the second set of temperature instruments into the temperature source simultaneously; record the fifth indication value of the No. 1 temperature calibrator in the first set of temperature instruments and the sixth indication value of the No. 2 temperature calibrator in the second set of temperature instruments; determine the difference between the fifth indication value and the actual temperature of the temperature source measured by the standard device as the first system indication error; determine the difference between the sixth indication value and the actual temperature as the second system indication error.

[0082] Among them, the temperature source is a constant temperature device, which is a device that provides a constant and uniform temperature field, and can be a constant temperature bath, a calibration furnace (dry-block temperature calibrator, heat pipe furnace), a verification furnace, etc. In a possible embodiment, the temperature source preferably selects a constant temperature bath as the constant temperature device, with higher accuracy.

[0083] For example, the calculation formula is as follows:

[0084] Δt s =t” s -T

[0085] Among them, Δt s is the first system indication error, T is the indication value of the standard device (i.e., the actual temperature of the temperature source), and t” s is the fifth indication value, that is, the indication value measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source.

[0086] Δt d =t” d -T

[0087] Among them, Δt d is the second system indication error, T is the indication value of the standard device, and t” d is the sixth indication value, that is, the indication value measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source.

[0088] In a possible embodiment, before inserting the No. 1 test thermocouple in the first set of temperature instruments and the No. 2 test thermocouple in the second set of temperature instruments into the temperature source simultaneously, the method further includes: determining the highest temperature, the lowest temperature, and the intermediate temperature in the working temperature range of the autoclave as the test temperatures respectively; and using the temperature source corresponding to the test temperatures.

[0089] In the specific implementation process, first, the lowest temperature in the working temperature range of the autoclave can be determined as the test temperature, and a temperature source corresponding to the lowest temperature is selected for testing to obtain the first system indication error and the second system indication error at the lowest temperature. Then, the intermediate temperature in the working temperature range of the autoclave can be determined as the test temperature, and a temperature source corresponding to the intermediate temperature is selected for testing to obtain the first system indication error and the second system indication error at the intermediate temperature. Finally, the highest temperature in the working temperature range of the autoclave can be determined as the test temperature, and a temperature source corresponding to the highest temperature is selected for testing to obtain the first system indication error and the second system indication error at the highest temperature.

[0090] In the embodiment of the present application, by selecting the extreme values and the intermediate value of the working temperature range of the autoclave, it can be ensured that the test process covers the entire working temperature range of the autoclave, which helps to evaluate the performance of the equipment under different conditions. Testing at the highest and lowest temperatures can verify the stability and reliability of the equipment under extreme conditions, while the intermediate value can reflect the performance of the equipment under normal operating conditions.

[0091] In a possible embodiment, before determining the highest temperature, the lowest temperature, and the intermediate temperature in the working temperature range of the autoclave as the test temperatures respectively, the method also divides the difference between the highest temperature and the lowest temperature in the working temperature range of the autoclave by 3, and then adds the lowest temperature to obtain the intermediate temperature.

[0092] In the specific implementation process, the intermediate temperature is the temperature at the middle 1 / 3 of the working temperature range of the autoclave. The specific calculation formula is as follows:

[0093] TM = TL + 1 / 3 × (TH - TL)

[0094] Where TM is the intermediate temperature, TL is the lowest temperature, and TH is the highest temperature.

[0095] For example, the working temperature range of the autoclave is usually between 120°C and 200°C. Therefore, the lowest temperature TH = 120°C, the highest temperature TL = 200°C, and the intermediate temperature TM = 120 + 1 / 3 × (200 - 120) ≈ 147°C.

[0096] When evaluating the performance of an autoclave equipment, system accuracy tests and furnace temperature uniformity tests need to be carried out. In both the system accuracy test and the furnace temperature uniformity test, the error of the junction box needs to be corrected. Therefore, the test points of the junction box should be the same as those of the system accuracy test and the furnace temperature uniformity test. In the American Standard for high-temperature measurement, it is clearly stipulated that the temperature points for the system accuracy test and the furnace temperature uniformity test are the highest point, the lowest point, and a point at the middle 1 / 3 of the working temperature range. The system accuracy test and the furnace temperature uniformity test are both carried out with reference to the American Standard. Therefore, in the embodiments of the present application, the temperature value at the middle 1 / 3 of the working temperature range of the autoclave is taken as the intermediate temperature.

[0097] To sum up, considering that the junction box of the autoclave is fixed on the autoclave and is not convenient to disassemble, and the junction box is relatively large in size and cannot be placed in a temperature source for calibration even if disassembled, the present application provides a method for testing the junction box of an autoclave. This testing method can directly measure the error of the junction box of the autoclave without disassembling the junction box.

[0098] In addition, measurement uncertainty is a parameter that characterizes the dispersion reasonably attributed to the measured value and is a parameter associated with the measurement result. Usually, when making a pass / fail determination, the test uncertainty ratio between the equipment under test and its testing equipment, and between the testing equipment and its calibration equipment is generally not less than 3:1. The allowable error of the junction box is ±1.0 °C, and the measurement uncertainty of the measurement result of the junction box error is U = 0.1 °C (k = 2), and the test uncertainty ratio is 10:1, meeting the requirement of not less than 3:1.

[0099] Based on the same inventive concept, please refer to Figure 5 , the present application also provides a testing device for the junction box of an autoclave. This device is arranged in a temperature measurement system. The temperature measurement system includes a No. 1 temperature calibrator, a No. 2 temperature calibrator, a No. 1 test thermocouple, and a No. 2 test thermocouple; the device includes:

[0100] A connection module, which is used to fix the measurement end of the No. 1 test thermocouple at the center point inside the autoclave and connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator outside the autoclave during the test process; divide the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fix the measurement end of the first section of thermocouple at the center point inside the tank, connect the reference end of the first section of thermocouple to the first-channel terminal of the junction box inside the autoclave, connect one end of the second section of thermocouple to the first-channel terminal of the junction box outside the autoclave, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator;

[0101] A start module, which is used to close the door of the autoclave, turn on the power, and start the control system of the autoclave;

[0102] A recording module, configured to record a first indication value of a No. 1 temperature calibrator and a second indication value of a No. 2 temperature calibrator at a first moment after the indicated temperature of the autoclave reaches a preset temperature.

[0103] An obtaining module, configured to obtain a first initial error of the junction box according to the first indication value and the second indication value.

[0104] It should be noted that, in this embodiment, each module in the junction box testing device of the autoclave corresponds one by one to each step in the junction box testing method of the autoclave in the foregoing embodiment. Therefore, the specific implementation manners of this embodiment may refer to the implementation manners of the foregoing junction box testing method of the autoclave, and will not be elaborated here.

[0105] Based on the same inventive concept, the present application further provides a computer device, which includes a processor, a memory, and a computer program stored in the memory. When the computer program is run by the processor, the foregoing junction box testing method of the autoclave is implemented.

[0106] Based on the same inventive concept, the present application further provides a computer storage medium, on which a computer program is stored. When the computer program is run by the processor, the foregoing junction box testing method of the autoclave is implemented.

[0107] In some embodiments, the computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash memory, magnetic surface memory, optical disc, or CD-ROM; or may be various devices including one or any combination of the foregoing memories. The computer may be various computing devices including intelligent terminals and servers.

[0108] In some embodiments, the executable instructions may be in the form of a program, software, software module, script, or code, and may be written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and may be deployed in any form, including being deployed as an independent program or being deployed as a module, component, subroutine, or other unit suitable for use in a computing environment.

[0109] As an example, the executable instructions may or may not correspond to files in the file system, and may be stored as a part of a file that stores other programs or data, for example, stored in one or more scripts in a Hyper Text Markup Language (HTML) document, stored in a single file dedicated to the program being discussed, or stored in multiple cooperating files (for example, files that store one or more modules, subroutines, or code portions).

[0110] As an example, the executable instructions can be deployed to execute on one computing device, or on multiple computing devices located at one location, or on multiple computing devices distributed at multiple locations and interconnected by a communication network.

[0111] It should be noted that in this document, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such a process, method, article or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or system including that element.

[0112] The serial numbers of the embodiments of the present application above are only for description and do not represent the superiority or inferiority of the embodiments.

[0113] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory / random access memory, magnetic disk, optical disk), and includes several instructions for causing a multimedia terminal device (which can be a mobile phone, a computer, a television receiver, or a network device, etc.) to execute the methods of the various embodiments of the present application.

[0114] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the specification and attached drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A method for testing a junction box of an autoclave, characterized in that, Applied to a temperature measurement system, the temperature measurement system includes a No. 1 temperature calibrator, a No. 2 temperature calibrator, a No. 1 test thermocouple, and a No. 2 test thermocouple; the method includes: During the test, fix the measuring end of the No. 1 test thermocouple at the center point inside the autoclave, and connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator; divide the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fix the measuring end of the first section of thermocouple at the center point inside the autoclave, connect the reference end of the first section of thermocouple to the first-channel terminal of the junction box inside the autoclave, connect one end of the second section of thermocouple to the first-channel terminal of the junction box outside the autoclave, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator; Close the door of the autoclave, turn on the power supply, and activate the control system of the autoclave; After the indicated temperature of the autoclave reaches the preset temperature, record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment; Obtain the first initial error of the junction box according to the first indication value and the second indication value.

2. The wiring box testing method of the autoclave according to claim 1, wherein After obtaining the first initial error of the junction box according to the first indication value and the second indication value, the method further includes: Record the third indication value of the No. 1 temperature calibrator and the fourth indication value of the No. 2 temperature calibrator at the second moment; Obtain the second initial error of the junction box according to the third indication value and the fourth indication value; Determine the maximum value of the first initial error and the second initial error as the final error of the junction box.

3. The wiring box testing method of the autoclave according to claim 1, characterized in that, The obtaining the first initial error of the junction box according to the first indication value and the second indication value includes: Determine the difference between the first indication value and the first system indication error as the first error; the first system indication error is the system indication error measured by the No. 1 temperature calibrator connected to the No. 1 test thermocouple in the temperature source; Determine the difference between the second indication value and the second system indication error as the second error; the second system indication error is the system indication error measured by the No. 2 temperature calibrator connected to the No. 2 test thermocouple in the temperature source; Determine the difference between the second error and the first error as the first initial error of the junction box.

4. The wiring box testing method for an autoclave according to claim 3, characterized in that, Before the test process, the method further includes: Connect the No. 1 test thermocouple to the No. 1 temperature calibrator to form a first complete set of temperature instruments, and connect the No. 2 test thermocouple to the No. 2 temperature calibrator to form a second complete set of temperature instruments; Insert the No. 1 test thermocouple in the first complete set of temperature instruments and the No. 2 test thermocouple in the second complete set of temperature instruments into the temperature source simultaneously; Record the fifth indication value of the No. 1 temperature calibrator in the first complete set of temperature instruments and the sixth indication value of the No. 2 temperature calibrator in the second complete set of temperature instruments; Determine the difference between the fifth indication value and the actual temperature of the temperature source measured by the standard device as the first system indication error; Determine the difference between the sixth indication value and the actual temperature of the temperature source measured by the standard device as the second system indication error.

5. The method for testing the junction box of an autoclave according to claim 4, characterized in that, Before inserting the No. 1 test thermocouple in the first set of temperature instruments and the No. 2 test thermocouple in the second set of temperature instruments into the temperature source simultaneously, the method further includes: Determine the highest temperature, the lowest temperature, and the intermediate temperature in the operating temperature range of the autoclave as the test temperatures respectively. Adopt a temperature source corresponding to the test temperature.

6. The method for testing the junction box of an autoclave according to claim 5, characterized in that, Before determining the highest temperature, the lowest temperature, and the intermediate temperature in the operating temperature range of the autoclave as the test temperatures respectively, the method further includes: Divide the difference between the highest temperature and the lowest temperature in the operating temperature range of the autoclave by 3, and then add the lowest temperature to obtain the intermediate temperature.

7. The wiring box testing method of the autoclave according to claim 1, characterized in that, The step of recording the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment after the indicated temperature of the autoclave reaches the preset temperature includes: After the indicated temperature of the autoclave reaches the preset temperature and the indicated temperature remains stable for a preset duration, record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment.

8. A test device for a junction box of an autoclave, characterized in that, The device is arranged in a temperature measurement system, and the temperature measurement system includes a No. 1 temperature calibrator, a No. 2 temperature calibrator, a No. 1 test thermocouple, and a No. 2 test thermocouple; the device includes: A connection module, configured to fix the measurement end of the No. 1 test thermocouple at the center point inside the autoclave during the test, connect the reference end of the No. 1 test thermocouple to the No. 1 temperature calibrator; divide the No. 2 test thermocouple into a first section of thermocouple and a second section of thermocouple, fix the measurement end of the first section of thermocouple at the center point inside the autoclave, connect the reference end of the first section of thermocouple to the first-channel wiring terminal of the junction box inside the autoclave, connect one end of the second section of thermocouple to the first-channel wiring terminal of the junction box outside the autoclave, and connect the other end of the second section of thermocouple to the No. 2 temperature calibrator; A start module, configured to close the door of the autoclave, turn on the power, and start the control system of the autoclave. A recording module, configured to record the first indication value of the No. 1 temperature calibrator and the second indication value of the No. 2 temperature calibrator at the first moment after the indicated temperature of the autoclave reaches the preset temperature. An obtaining module, configured to obtain the first initial error of the junction box according to the first indication value and the second indication value.

9. A computer device, characterized in that, The computer device includes a memory and a processor, and a computer program is stored in the memory. The processor executes the computer program to implement the method for testing the junction box of the autoclave according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and the processor executes the computer program to implement the method for testing the junction box of the autoclave according to any one of claims 1-7.

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