A method and system for comparing the response speed of multiple NTC temperature sensors

Abstract

A method for comparing the reaction speed of multiple NTC temperature sensors, wherein all the NTC temperature sensors to be tested are placed in a first temperature field with a temperature of T0, and the sensors are waited for constant temperature stabilization; the NTC temperature sensors in the first temperature field are sequentially transferred to a second temperature field with a temperature of T1, and the NTC temperature sensors are waited for constant temperature stabilization, and the resistance change data of the whole process is recorded by resistance acquisition software; the above operation is repeated until all the NTC temperature sensors to be tested are tested; all the resistance data recorded by the resistance acquisition software are imported into the data processing software, and the data processing software is used to process the data according to a preset method to obtain the result of comparing the reaction speed of multiple NTC temperature sensors. The present invention provides a new method for comparing the reaction speed of multiple NTC temperature sensors, which is more intuitive and simple. The method of comparing the speed by reaction time is converted into the method of comparing the slope of the R‑t image, which effectively avoids the errors caused by recording time and capturing specific quantities in the change process.

Description

Technical Field

[0001] The present invention relates to the field of NTC temperature sensor detection, and in particular to a method and system for comparing the reaction speeds of multiple NTC temperature sensors. Background Art

[0002] The existing method of comparing the reaction speed of multiple NTC temperature sensors is to test the thermal time constant of each sensor to be tested separately, and then compare the thermal time constant value. The longer the thermal time constant, the slower the reaction, and vice versa. The method of testing the thermal time constant is to transfer the sensor from the T0 temperature field to the T1 temperature field, and then the time required to record the 63.2% change in sensor temperature is the thermal time constant. This method captures a specific amount in the process of change, which is more likely to produce larger errors, and the start and stop of the timing has a human reaction time, which further increases the test error. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a method and system for comparing the response speeds of multiple NTC temperature sensors, which overcomes the above problems or at least partially solves the above problems.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] A method for comparing the response speeds of multiple NTC temperature sensors, comprising:

[0006] S100. Place all NTC temperature sensors to be tested in a first temperature field at a temperature of T0 and wait for the sensors to stabilize at a constant temperature;

[0007] S200. The NTC temperature sensor of the first temperature field is sequentially transferred to the second temperature field with a temperature of T1, and the NTC temperature sensor is kept at a constant temperature and stabilized, and the resistance value change data of the whole process is recorded by the resistance value acquisition software;

[0008] S300. Repeat S100-S200 until all NTC temperature sensors to be tested are tested;

[0009] S400. Import all resistance data recorded by the resistance acquisition software into the data processing software, and process the data by the data processing software according to a preset method to obtain the result of comparing the reaction speeds of multiple NTC temperature sensors.

[0010] Further, in S100, the method for judging whether the sensor is thermostatically stable is as follows: after the NTC temperature sensor to be tested is placed in a first temperature field with a temperature of T0, the resistance acquisition software is opened to start collecting data. When the image display in the software interface is close to a horizontal straight line, the sensor is judged to be thermostatically stable.

[0011] Furthermore, in S200, after the resistance value acquisition software records the resistance value change data of the entire process, the acquired data is saved in an automatically generated Excel table.

[0012] Furthermore, in S200, the resistance value acquisition software is independently developed based on the Labview platform. The resistance value acquisition software controls the Keysight DAQ970A device to scan the NTC temperature sensor, obtain the resistance value and record it.

[0013] Further, in S400, the data processing software processes according to a preset method to obtain a method for comparing the reaction speeds of multiple NTC temperature sensors, including: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and uses time t as the horizontal coordinate and resistance R as the vertical coordinate to generate an Rt image of the NTC temperature sensor in the same coordinate system.

[0014] Furthermore, in S400, the data processing software performs processing according to a preset method to obtain the result of comparing the reaction speeds of multiple NTC temperature sensors, and also includes: adjusting the generated Rt image of the NTC temperature sensor so that the inflection point when the temperature suddenly changes is shifted to the same starting time, and obtaining the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa.

[0015] Furthermore, an Rt image of the NTC temperature sensor is generated, and adjustment, translation, zooming, and cursor tracking can be performed.

[0016] The present invention also discloses a system for comparing the reaction speeds of multiple NTC temperature sensors, which is characterized by comprising: temperature field and resistance value acquisition software and data processing software; wherein:

[0017] The temperature field includes a first temperature field with a temperature of T0 and a second temperature field with a temperature of T1, wherein the first temperature field is used to place all NTC temperature sensors to be tested, and the second temperature field is used to place NTC temperature sensors transferred from the first temperature field;

[0018] Resistance acquisition software, used to record the resistance change data of the NTC temperature sensor during the process of transferring from the first temperature field to the second temperature field, and send the resistance change data to the data processing software;

[0019] The data processing software is used to receive the resistance change data sent by the resistance acquisition software, process it according to the preset method, and obtain the result of comparing the reaction speed of multiple NTC temperature sensors.

[0020] Furthermore, the data processing software processes according to a preset method to obtain a method for comparing the reaction speeds of multiple NTC temperature sensors, including: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and uses time t as the horizontal coordinate and resistance R as the vertical coordinate to generate an Rt image of the NTC temperature sensor in the same coordinate system.

[0021] Furthermore, the data processing software processes according to a preset method to obtain the results of comparing the reaction speeds of multiple NTC temperature sensors, which also includes: adjusting the generated Rt image of the NTC temperature sensor so that the inflection point when the temperature changes suddenly is shifted to the same starting time, and obtaining the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa.

[0022] The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

[0023] The present invention discloses a method for comparing the reaction speed of multiple NTC temperature sensors. All the NTC temperature sensors to be tested are placed in a first temperature field with a temperature of T0, and the sensors are waited for constant temperature stabilization; the NTC temperature sensors in the first temperature field are sequentially transferred to a second temperature field with a temperature of T1, and the NTC temperature sensors are waited for constant temperature stabilization, and the resistance change data of the whole process is recorded by resistance acquisition software; the above operation is repeated until all the NTC temperature sensors to be tested are tested; all the resistance data recorded by the resistance acquisition software are imported into the data processing software, and the data processing software is used to process the data according to a preset method to obtain the result of comparing the reaction speed of multiple NTC temperature sensors. The present invention provides a new method for comparing the reaction speed of multiple NTC temperature sensors, which is more intuitive and simple. The method of comparing the speed by reaction time is converted into the method of comparing the slope of the Rt image, which effectively avoids the errors caused by recording time and capturing specific quantities in the change process.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a flow chart of a method for comparing the reaction speeds of multiple NTC temperature sensors in Example 1 of the present invention;

[0027] Figure 2This is a schematic diagram of a method for comparing the reaction speeds of multiple NTC temperature sensors in Example 1 of the present invention;

[0028] Figure 3 This is the data processing software interface in Example 1 of the present invention. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] In order to solve the problems existing in the prior art, an embodiment of the present invention provides a method and system for comparing the reaction speeds of multiple NTC temperature sensors.

[0031] Example 1

[0032] A method for comparing the response speed of multiple NTC temperature sensors, such as Figure 1 ,include:

[0033] S100. Place all NTC temperature sensors to be tested in a first temperature field with a temperature of T0 and wait for the sensors to be kept at a constant temperature and stabilized.

[0034] In this embodiment, the method for judging whether the sensor is thermostatically stable is as follows: after the NTC temperature sensor to be tested is placed in a first temperature field with a temperature of T0, the resistance acquisition software is opened to start collecting data. When the image display in the software interface is close to a horizontal straight line, the sensor is judged to be thermostatically stable.

[0035] S200. The NTC temperature sensors of the first temperature field are sequentially transferred to the second temperature field with a temperature of T1, and the NTC temperature sensors are waited for constant temperature stabilization, and the resistance value change data of the whole process is recorded by resistance value acquisition software.

[0036] Specifically, Figure 2 In this embodiment, the resistance acquisition software is independently developed based on the Labview platform. The resistance acquisition software controls the Keysight DAQ970A device to scan the NTC temperature sensor, obtain the resistance value and record it.

[0037] In this embodiment, after the resistance value acquisition software records the resistance value change data of the entire process, the acquired data is saved in an automatically generated Excel table.

[0038] S300. Repeat S100-S200 until all NTC temperature sensors to be tested are tested;

[0039] S400. Import all resistance data recorded by the resistance acquisition software into the data processing software, and process the data by the data processing software according to a preset method to obtain the result of comparing the reaction speeds of multiple NTC temperature sensors.

[0040] Specifically, the data processing software processes according to a preset method to obtain the result of comparing the reaction speed of multiple NTC temperature sensors, including: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and uses time t as the horizontal coordinate and resistance R as the vertical coordinate to generate the Rt image of the NTC temperature sensor in the same coordinate system. The generated Rt image of the NTC temperature sensor can be adjusted, translated, zoomed in and out, and tracked by a cursor.

[0041] In some preferred embodiments, the data processing software processes according to a preset method to obtain the results of comparing the reaction speeds of multiple NTC temperature sensors, and also includes: adjusting the generated Rt image of the NTC temperature sensor so that the inflection point when the temperature changes suddenly is shifted to the same starting time, and obtaining the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa.

[0042] Specifically, Figure 3 , adjust the temperature inflection points of each curve to the same time, and judge the speed of sensor response by observing the slope. If the image is too dense and difficult to observe, you can zoom in on the whole image, zoom in on part of the image, drag, pan, etc. to facilitate observation and judgment.

[0043] This embodiment discloses a system for comparing the reaction speed of multiple NTC temperature sensors, which is characterized by comprising: temperature field, resistance value acquisition software and data processing software; wherein:

[0044] The temperature field includes a first temperature field with a temperature of T0 and a second temperature field with a temperature of T1, wherein the first temperature field is used to place all NTC temperature sensors to be tested, and the second temperature field is used to place NTC temperature sensors transferred from the first temperature field;

[0045] Resistance acquisition software, used to record the resistance change data of the NTC temperature sensor during the process of transferring from the first temperature field to the second temperature field, and send the resistance change data to the data processing software;

[0046] The data processing software is used to receive the resistance change data sent by the resistance acquisition software, process it according to the preset method, and obtain the result of comparing the reaction speed of multiple NTC temperature sensors.

[0047] In some preferred embodiments, the data processing software processes according to a preset method to obtain the results of comparing the reaction speeds of multiple NTC temperature sensors, including: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and uses time t as the horizontal coordinate and resistance R as the vertical coordinate to generate an Rt image of the NTC temperature sensor in the same coordinate system.

[0048] In some preferred embodiments, the data processing software processes according to a preset method to obtain the results of comparing the reaction speeds of multiple NTC temperature sensors, and also includes: adjusting the generated Rt image of the NTC temperature sensor so that the inflection point when the temperature changes suddenly is shifted to the same starting time, and obtaining the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa.

[0049] The present embodiment discloses a method for comparing the reaction speed of multiple NTC temperature sensors, which comprises placing all the NTC temperature sensors to be tested in a first temperature field with a temperature of T0, and waiting for the sensors to be thermostatically stabilized; transferring the NTC temperature sensors in the first temperature field to the second temperature field with a temperature of T1 in turn, waiting for the NTC temperature sensors to be thermostatically stabilized, and using resistance acquisition software to record the resistance change data of the entire process; repeating the above operations until all the NTC temperature sensors to be tested are tested; importing all the resistance data recorded by the resistance acquisition software into the data processing software, and processing the data processing software according to a preset method to obtain the result of comparing the reaction speed of multiple NTC temperature sensors. The present invention provides a new method for comparing the reaction speed of multiple NTC temperature sensors, which is more intuitive and simple. The method of comparing the speed by reaction time is converted into the method of comparing the slope of the Rt image, which effectively avoids the errors caused by recording time and capturing specific quantities in the change process.

[0050] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of protection of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy described.

[0051] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0052] Those skilled in the art will also appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above around their functions. Whether such functions are implemented as hardware or software depends on specific applications and the design constraints imposed on the entire system. A skilled person can implement the described functions in an alternative manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present disclosure.

[0053] The steps of the method or algorithm described in conjunction with the embodiments herein may be directly embodied as hardware, a software module executed by a processor, or a combination thereof. The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The ASIC may be located in a user terminal. Of course, the processor and the storage medium may also be present in a user terminal as discrete components.

[0054] For software implementation, the techniques described in this application can be implemented with modules (e.g., procedures, functions, etc.) that perform the functions described in this application. These software codes can be stored in a memory unit and executed by a processor. The memory unit can be implemented within the processor or outside the processor. In the latter case, it is coupled to the processor in a communication manner via various means, which are well known in the art.

[0055] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. A method for comparing the reaction speed of multiple NTC temperature sensors, characterized in that: include: S100. Place all NTC temperature sensors to be tested in a first temperature field at a temperature of T0 and wait for the sensors to stabilize at a constant temperature; S200. The NTC temperature sensor of the first temperature field is sequentially transferred to the second temperature field with a temperature of T1, and the NTC temperature sensor is kept at a constant temperature and stabilized, and the resistance value change data of the whole process is recorded by the resistance value acquisition software; S300. Repeat S100-S200 until all NTC temperature sensors to be tested are tested; S400. Import all resistance data recorded by the resistance acquisition software into the data processing software, and process them according to a preset method by the data processing software to obtain the results of comparing the reaction speeds of multiple NTC temperature sensors; In S400, the data processing software processes according to a preset method to obtain a method for comparing the reaction speeds of multiple NTC temperature sensors, including: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and generates an Rt image of the NTC temperature sensor in the same coordinate system with time t as the horizontal coordinate and resistance R as the vertical coordinate; In S400, the data processing software processes according to a preset method to obtain a method for comparing the reaction speeds of multiple NTC temperature sensors, which also includes: adjusting the generated Rt image of the NTC temperature sensor so that the inflection point when the temperature changes suddenly is translated to the same starting time, and obtaining the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa; the Rt image of the NTC temperature sensor is generated, which can be adjusted, translated, zoomed in and out, and tracked by the cursor.

2. A method for comparing the reaction speeds of multiple NTC temperature sensors as claimed in claim 1, characterized in that: In S100, the method for judging whether the sensor is thermostatically stable is as follows: after the NTC temperature sensor to be tested is placed in a first temperature field at a temperature of T0, the resistance acquisition software is opened to start collecting data. When the image display in the software interface is close to a horizontal straight line, the sensor is judged to be thermostatically stable.

3. A method for comparing the reaction speeds of multiple NTC temperature sensors as claimed in claim 1, characterized in that: In S200, after the resistance value acquisition software records the resistance value change data of the entire process, the acquired data is saved in an automatically generated Excel table.

4. A method for comparing the reaction speeds of multiple NTC temperature sensors as claimed in claim 1, characterized in that: In S200, the resistance acquisition software is independently developed based on the Labview platform. The resistance acquisition software controls the KeysightDAQ970A device to scan the NTC temperature sensor, obtain the resistance value and record it.

5. A system for comparing the reaction speed of multiple NTC temperature sensors, characterized in that: include: Temperature field, resistance value acquisition software and data processing software; including: The temperature field includes a first temperature field with a temperature of T0 and a second temperature field with a temperature of T1, wherein the first temperature field is used to place all NTC temperature sensors to be tested, and the second temperature field is used to place NTC temperature sensors transferred from the first temperature field; Resistance acquisition software, used to record the resistance change data of the NTC temperature sensor during the process of transferring from the first temperature field to the second temperature field, and send the resistance change data to the data processing software; The data processing software is used to receive the resistance change data sent by the resistance acquisition software, process it according to a preset method, and obtain the result of comparing the reaction speeds of multiple NTC temperature sensors; the method in which the data processing software processes according to the preset method to obtain the result of comparing the reaction speeds of multiple NTC temperature sensors includes: the data processing software analyzes all the received resistance data, obtains the resistance value and corresponding time of the NTC temperature sensor, and generates the Rt image of the NTC temperature sensor in the same coordinate system with time t as the horizontal coordinate and resistance R as the vertical coordinate; adjusts the generated Rt image of the NTC temperature sensor, so that the inflection point when the temperature suddenly changes is translated to the same starting time, and obtains the slope of each Rt curve. When the absolute value of the slope is larger, the corresponding sensor reacts faster, and vice versa; generates the Rt image of the NTC temperature sensor, which can be adjusted, translated, zoomed in and out, and tracked by a cursor.

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