Wireless contact type surface temperature measuring device and temperature measuring method

Abstract

The invention provides a wireless contact type surface temperature measuring device and method, and the device comprises a sensor probe, a wireless transmission module, a probe fixing and pressure adjusting mechanism, and a test analysis processor. The sensor probe comprises a probe shell, an internal circuit and a power supply module which are arranged in the probe shell, and a temperature sensing element arranged at the lower part of the probe shell; the probe fixing and pressure adjusting mechanism comprises a supporting frame, a pressurizing lead screw, a pressure spring, a pressure sensor, a probe mounting base and at least three suction cups. During detection, detection data are transmitted in real time through the wireless transmission module, and surface temperature detection in a closed environment can be achieved. The contact degree can be well controlled by combining the pressurization lead screw and the pressure sensor, the influence of human factors is avoided, and the temperature measurement accuracy is improved. A sucker fixing mode is adopted, so that surface temperature detection can be applied to occasions such as a horizontal plane and a vertical surface, and the applicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature measurement, and in particular to a wireless contact surface temperature measurement device and a temperature measurement method. Background Art

[0002] A surface thermometer is an instrument used to measure the surface temperature of an object. It consists of a surface temperature sensor and a display instrument. Common sensors include thermocouples and thermal resistors, which are mainly used in industries such as aerospace, energy and chemical engineering. A surface thermometer measures temperature by conducting heat flow through contact with the surface being measured. Therefore, the degree of contact between the temperature sensor and the surface being measured greatly affects the measured temperature. The degree of contact depends on the size and direction of the force applied by the user on the temperature sensor, which leads to unreliability. Moreover, conventional surface thermometers cannot be used in closed environments.

[0003] Therefore, it is necessary to provide a surface temperature measuring device. Summary of the invention

[0004] The purpose of the present invention is to provide a wireless contact surface temperature measurement device and a temperature measurement method to solve the problem of surface temperature measurement in view of the above-mentioned deficiencies in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] The present invention provides a wireless contact surface temperature measuring device, comprising a sensor probe, a wireless transmission module, a probe fixing and pressure regulating mechanism, and a test analysis processor.

[0007] The sensor probe is used to sense the temperature of the measured surface, the probe fixing and pressure adjustment mechanism is used to fix the sensor probe on the measured surface, and the wireless transmission module is used to obtain the temperature signal from the sensor probe and wirelessly transmit the signal to the test analysis processor;

[0008] The sensor probe comprises a probe housing, an internal circuit and a power module arranged in the probe housing, and a temperature sensing element arranged at the lower part of the probe housing, wherein the temperature sensing element is a heat-conducting metal block with a built-in thermistor, and an insulating layer is arranged outside the heat-conducting metal block;

[0009] The probe fixing and pressure adjustment mechanism includes a support frame, a pressure screw, a compression spring, a pressure sensor, a probe mounting seat and at least three suction cups. The suction cup is installed below the support frame, and the suction cup is adsorbed on the peripheral position of the temperature measuring point of the measured surface. The pressure screw is installed on the top plate of the support frame, and the pressure sensor is installed above the probe mounting seat. The pressure screw applies downward pressure to the pressure sensor through the compression spring, and the sensor probe is installed below the probe mounting seat.

[0010] The temperature measurement method using the above device includes the following steps:

[0011] Attach the suction cup to the surface to be tested;

[0012] Adjust the pressure screw and adjust the contact pressure between the sensor probe and the measured surface to the set value according to the pressure value measured by the pressure sensor;

[0013] Collect the measured surface temperature data and pressure data of the corresponding time nodes in real time.

[0014] The technical solution of the present invention is that for a closed environment, before detection, the sensor probe is first installed in the closed environment. During detection, the detection data is transmitted in real time through the wireless transmission module to realize the surface temperature detection in the closed environment. Combining the pressurized screw and the pressure sensor can well control the contact degree, which is not affected by human factors and improves the accuracy of temperature measurement. The suction cup fixing method is adopted, so that the surface temperature detection can be used not only on horizontal surfaces, but also on vertical surfaces and other occasions, which improves the applicability.

[0015] Optionally, the support frame includes a top plate, at least 3 top pressure screws and at least 3 suction cup pull rod assemblies, all of the top pressure screws are distributed in a circular array with the sensor probe as the center, the nuts of the top pressure screws are fixedly installed on the top plate, and the top pressure screws are vertically arranged to the top plate; all the suction cup pull rod assemblies are distributed in a circular array with the sensor probe as the center, the suction cup pull rod assembly includes a stretching screw, a spring dynamometer and a suction cup connecting rod, the nut of the stretching screw is fixedly installed on the top plate, the nut of the stretching screw is fixedly installed on the top plate, the stretching screw is vertically arranged to the top plate, the upper end of the spring dynamometer is connected to the lower end of the stretching screw via a rotating connector, the lower end of the spring dynamometer is connected to the upper end of the suction cup connecting rod, and the lower end of the suction cup connecting rod is connected to the suction cup.

[0016] The temperature measurement method using the above preferred solution device comprises the following steps:

[0017] Adjust the downward extension length of each top pressure screw rod according to the structure of the measured surface, so that the lower end surface of the sensor probe can fully contact the measured surface;

[0018] Attach the suction cup to the surface to be measured, and adjust the tension screw of the suction cup pull rod assembly upwards so that each spring dynamometer is in a tension state with the same tension, and the sum of the tensions of all spring dynamometers is greater than twice the set value of the contact pressure between the sensor probe and the surface to be measured;

[0019] Adjust the pressure screw and adjust the contact pressure between the sensor probe and the measured surface to the set value according to the pressure value measured by the pressure sensor;

[0020] Collect the measured surface temperature data and pressure data of the corresponding time nodes in real time.

[0021] By adopting the above-mentioned preferred technical scheme, the material of the top pressure screw rod is a metal material with a small thermal expansion coefficient, which can also form a stable height space support for the sensor probe and the probe fixing and pressure adjustment mechanism when the temperature of the measured surface changes greatly; since the tension is preset on each suction cup pull rod assembly, when the temperature of the measured surface changes greatly and the suction force of the suction cup fluctuates, the preset tension will offset the change in the suction force of the suction cup, and will not affect the contact pressure between the sensor probe and the measured surface, so that it can be maintained more stably at the set value, ensuring the consistency of the temperature measurement contact pressure conditions and improving the temperature measurement accuracy.

[0022] Optionally, the nut of the pressure screw is fixedly installed at the center position of the top plate, the pressure screw is vertically arranged to the top plate, the lower end of the pressure screw is rotatably connected to a rotating connector, the lower end of the rotating connector is connected to a pressure plate, the compression spring is located between the rotating connector and the pressure plate, and the pressure plate is pressed against the upper surface of the pressure sensor.

[0023] Optionally, a guide rod extending vertically downward is further provided on the top plate, a guide portion is extended above the probe mounting seat, the guide portion is sleeved on the guide rod and has the freedom to move up and down relative to the guide rod, and a check rod connected to the guide rod is also provided on the rotating connecting head, the end of the check rod is sleeved on the guide rod and has the freedom to move up and down relative to the guide rod.

[0024] The above-mentioned preferred technical solution is adopted to improve the stability of pressure regulation of the pressurized screw.

[0025] Optionally, the wireless transmission module uses ZigBee wireless technology to transmit signals.

[0026] Optionally, the material of the heat-conducting metal block is copper.

[0027] The above preferred technical solution is adopted to improve the thermal conductivity efficiency and the thermal conductivity uniformity.

[0028] Optionally, the material of the heat insulating layer is polyethylene plastic with added glass fiber.

[0029] The above preferred technical solution has low thermal conductivity, good mechanical properties and a wide temperature tolerance range.

[0030] Optionally, the internal circuit and power module include an MCU main control module, a power management module, a battery module, an ADC module, a storage module and an antenna.

[0031] Optionally, the suction cups are all pneumatic suction cups.

[0032] The above preferred technical solution is adopted to provide reliable adsorption force. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments 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 It is a structural schematic diagram of an implementation mode of the present invention.

[0035] Figure 2 It is a schematic diagram of the structure of the sensor probe.

[0036] Figure 3 This is the circuit functional block diagram of the sensor probe.

[0037] Figure 4 It is a structural schematic diagram of another embodiment of the present invention.

[0038] The numbers and letters in the figure represent the names of the corresponding parts:

[0039] 10-sensor probe; 11-probe housing; 12-internal circuit and power module; 121-MCU main control module; 122-power management module; 123-battery module; 124-ADC module; 125-storage module; 126-antenna; 127-display module; 13-thermistor; 14-heat-conducting metal block; 15-insulation layer; 20-support frame; 21-top plate; 22-top pressure screw rod; 23-suction cup pull rod assembly; 231-tension screw rod; 232-spring dynamometer; 233-suction cup connecting rod; 30-suction cup; 31-vacuum air pump; 41-pressurized screw rod; 42-compression spring; 43-pressure sensor; 44-probe mounting seat; 441-guide part; 45-rotating connector; 46-pressure plate; 47-guide rod; 48-check rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] like Figure 1-3 As shown, the present invention provides a wireless contact surface temperature measuring device, including a sensor probe 10, a wireless transmission module, a probe fixing and pressure regulating mechanism, and a test analysis processor.

[0046] The sensor probe 10 is used to sense the temperature of the measured surface, the probe fixing and pressure adjustment mechanism is used to fix the sensor probe 10 on the measured surface, and the wireless transmission module is used to obtain the temperature signal from the sensor probe 10 and transmit the signal wirelessly to the test analysis processor;

[0047] The sensor probe 10 includes a probe housing 11, an internal circuit and a power module 12 arranged in the probe housing 11, and a temperature sensing element arranged at the lower part of the probe housing 11. The temperature sensing element is a heat-conducting metal block 14 with a built-in thermistor 13, and a heat-insulating layer 15 is arranged outside the heat-conducting metal block 14;

[0048] The probe fixing and pressure adjustment mechanism includes a support frame 20, a pressure screw 41, a compression spring 42, a pressure sensor 43, a probe mounting seat 44 and at least three suction cups 30. The suction cup 30 is installed below the support frame 20. The suction cup 30 is adsorbed on the peripheral position of the temperature measuring point of the measured surface. The pressure screw 41 is installed on the top plate of the support frame 20. The pressure sensor 43 is installed above the probe mounting seat 44. The pressure screw 41 applies downward pressure to the pressure sensor 43 through the compression spring 42. The sensor probe 10 is installed below the probe mounting seat 44.

[0049] When measuring temperature, the suction cup is attached to the measured surface; the pressure screw is adjusted, and the contact pressure between the sensor probe and the measured surface is adjusted to the set value according to the pressure value measured by the pressure sensor; the temperature data of the measured surface and the pressure data of the corresponding time node are collected in real time.

[0050] The beneficial effects of adopting the above technical solution are: for a closed environment, before detection, the sensor probe is first installed in the closed environment. During detection, the detection data is transmitted in real time through the wireless transmission module to realize the surface temperature detection in the closed environment. Combining the pressurized screw and the pressure sensor can well control the contact degree, which is not affected by human factors and improves the accuracy of temperature measurement. The suction cup fixing method is adopted, so that the surface temperature detection can be used not only on horizontal surfaces, but also on vertical surfaces, which improves the applicability.

[0051] For the measured surface with large temperature changes, the suction cup's adsorption force is greatly affected by the temperature difference. If a general support frame and suction cup direct connection structure is used, the contact pressure between the sensor probe and the measured surface is adjusted initially, and the reaction force is reflected as the support frame's pulling force on the suction cup. As the suction cup's flexibility and adsorption force change with the temperature difference, the support frame's pulling force on the suction cup will change accordingly, causing the contact pressure between the sensor probe and the measured surface to change significantly, and thus causing the contact pressure to fluctuate greatly during the entire temperature measurement process, which cannot well reflect the consistency of pressure conditions during temperature measurement. Figure 4As shown, in order to solve the above problems, in some other embodiments of the present invention, the support frame 20 includes a top plate 21, at least three top pressure screws 22 and at least three suction cup pull rod assemblies 23, all of the top pressure screws 22 are distributed in a circular array with the sensor probe 10 as the center, the nuts of the top pressure screws 22 are fixedly installed on the top plate 21, and the top pressure screws 22 are vertically arranged with the top plate 21; all of the suction cup pull rod assemblies 23 are distributed in a circular array with the sensor probe 10 as the center, the suction cup pull rod assembly 23 includes a stretching screw 231, a spring dynamometer 232 and a suction cup connecting rod 233, the nut of the stretching screw 231 is fixedly installed on the top plate 21, the stretching screw 231 is vertically arranged with the top plate 21, the upper end of the spring dynamometer 232 is connected to the lower end of the stretching screw 231 via a rotating connector, the lower end of the spring dynamometer 232 is connected to the upper end of the suction cup connecting rod 233, and the lower end of the suction cup connecting rod 233 is connected to the suction cup 30. When measuring temperature, adjust the downward extension length of each top pressure screw rod according to the structure of the measured surface so that the lower end face of the sensor probe can fully contact the measured surface; adsorb the suction cup to the measured surface, and adjust the stretching screw rod of the suction cup pull rod assembly upward so that each spring dynamometer is in a tension state with consistent tension, and the sum of the tensions of all spring dynamometers is greater than 2 times the set value of the contact pressure between the sensor probe and the measured surface; adjust the pressure screw, and adjust the contact pressure between the sensor probe and the measured surface to the set value according to the pressure value measured by the pressure sensor; collect the temperature data of the measured surface and the pressure data of the corresponding time nodes in real time. The beneficial effects of adopting the above technical solution are: the material of the top pressure screw rod is a metal material with a small thermal expansion coefficient, which can also form a stable height space support for the sensor probe and the probe fixing and pressure adjustment mechanism when the temperature of the measured surface changes greatly; since the tension is preset on each suction cup pull rod assembly, when the temperature of the measured surface changes greatly and the suction force of the suction cup fluctuates, the preset tension will offset the change in the suction force of the suction cup, and will not affect the contact pressure between the sensor probe and the measured surface, so that it can be maintained more stably at the set value, ensuring the consistency of the temperature measurement contact pressure conditions and improving the temperature measurement accuracy.

[0052] like Figure 1As shown, in some other embodiments of the present invention, the nut of the pressure screw 41 is fixedly installed at the center position of the top plate 21, the pressure screw 41 is vertically arranged with the top plate 21, the lower end of the pressure screw 41 is rotatably connected with a rotating connector 45, the lower end of the rotating connector 45 is connected with a pressure plate 46, the compression spring 42 is between the rotating connector 45 and the pressure plate 46, and the pressure plate 46 presses against the upper surface of the pressure sensor 43. A guide rod 47 extending vertically downward is also provided on the top plate 21, a guide portion 441 is extended above the probe mounting seat 44, the guide portion 441 is sleeved on the guide rod 47 and has the freedom to move up and down relative to the guide rod 47, and a check rod 48 connected to the guide rod 47 is also provided on the rotating connector 45, the end of the check rod 48 is sleeved on the guide rod 47 and has the freedom to move up and down relative to the guide rod. The beneficial effect of adopting the above technical solution is: improving the stability of the pressure adjustment of the pressure screw.

[0053] In terms of sensor selection, on the one hand, it is necessary to meet the accuracy requirements, and on the other hand, it is necessary to meet the ultra-low power consumption requirements. It is necessary to select a temperature sensor with fast response speed and consistent response curve. Considering the above requirements, thermistor is selected. The sensor probe 10 uses a heat-conducting metal block 14 with a built-in thermistor 13 as a temperature sensing element, which can maximize the surface contact.

[0054] The working principle of the device is to bring the temperature sensing element of the sensor probe 10 into close contact with the surface to be measured, collect data from the temperature sensing element, transmit the data to the test analysis processor through wireless communication, and display the temperature in real time.

[0055] In some other embodiments of the present invention, the wireless transmission module uses ZigBee wireless technology to transmit signals.

[0056] In some other embodiments of the present invention, the material of the heat-conducting metal block 14 is red copper. As an intermediate piece between the sensor and the measured surface, the heat-conducting metal block 14 needs to be made of a material with high thermal conductivity and relatively large heat capacity. Red copper is copper with a very high copper content, and the total content of other impurities is less than 1%. It can generally be approximately considered as pure copper. Compared with aluminum, which is cheap and light in weight, red copper has a relatively large thermal conductivity. More importantly, copper has a large heat capacity in order to obtain better uniformity. This device can use red copper as the heat-conducting metal block.

[0057] In some other embodiments of the present invention, the material of the thermal insulation layer 15 is polyethylene plastic with added glass fiber. The thermal insulation layer 15 material needs to have a low thermal conductivity, the material tolerance temperature covers the range of the surface temperature device, and the material needs to have certain mechanical properties. Considering the above three factors, the thermal insulation layer 15 can be made of polyethylene plastic with added glass fiber, which has good mechanical properties, a thermal conductivity of ≤0.041W / m·K, and a temperature range of (-100~130)℃.

[0058] exist Figure 3 In the embodiment, the internal circuit and power module 12 includes an MCU main control module 121, a power management module 122, a battery module 123, an ADC module 124, a storage module 125 and an antenna 126. The temperature sensing element transmits the sensed temperature signal to the ADC module 124. The ADC module 124 transmits the analog-to-digital processed signal to the MCU main control module 121. The MCU main control module 121 is connected to the storage module 125 and the antenna 126 respectively. The MCU main control module 121 is also connected to the display module 127. The battery module 123 supplies power to the MCU main control module 121 and the ADC module 124 through the power management module 122. The battery module 123 can be a button battery.

[0059] In other embodiments of the present invention, the maximum width of the probe housing 11 is no greater than 2 cm. The device adopts a creative miniature independent probe design, integrating the temperature measuring head, acquisition and control circuits, batteries, etc. into the miniature temperature measuring probe. The maximum width of the probe housing 11 is no greater than 2 cm, which can increase the flexibility of the probe layout in terms of space.

[0060] In other embodiments of the present invention, the pressure sensor 43 is powered by a battery, and the output analog signal is converted into a digital signal through a sampling and filtering circuit, which is then wirelessly transmitted to a test and analysis processor via ZigBee to display the force value in real time, thereby performing adjustments.

[0061] In other embodiments of the present invention, the suction cup 30 is a pneumatic suction cup, and in this case, the suction cup 30 is evacuated by a vacuum air pump 31. At the same time, it should be ensured that under all temperature conditions of the measured surface, the adsorption force between the suction cup and the measured surface should be much greater than the contact pressure between the sensor probe and the measured surface, and should be set at least 4 times.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wireless contact surface temperature measuring device, characterized in that: It includes a sensor probe, a wireless transmission module, a probe fixing and pressure regulating mechanism, and a test and analysis processor; The sensor probe is used to sense the temperature of the measured surface, the probe fixing and pressure adjustment mechanism is used to fix the sensor probe on the measured surface, and the wireless transmission module is used to obtain the temperature signal from the sensor probe and transmit the signal wirelessly to the test analysis processor; The sensor probe comprises a probe housing, an internal circuit and a power module arranged in the probe housing, and a temperature sensing element arranged at the lower part of the probe housing, wherein the temperature sensing element is a heat-conducting metal block with a built-in thermistor, and an insulating layer is arranged outside the heat-conducting metal block; The probe fixing and pressure adjustment mechanism includes a support frame, a pressure screw, a compression spring, a pressure sensor, a probe mounting seat and at least three suction cups. The suction cup is installed below the support frame, and the suction cup is adsorbed on the peripheral position of the temperature measuring point of the measured surface. The pressure screw is installed on the top plate of the support frame, and the pressure sensor is installed above the probe mounting seat. The pressure screw applies downward pressure to the pressure sensor through the compression spring, and the sensor probe is installed below the probe mounting seat.

2. The wireless contact surface temperature measuring device according to claim 1, characterized in that: The support frame includes a top plate, at least 3 top pressure screws and at least 3 suction cup pull rod assemblies, all of the top pressure screws are distributed in a circular array with the sensor probe as the center, the nuts of the top pressure screws are fixedly installed on the top plate, and the top pressure screws are vertically arranged to the top plate; all the suction cup pull rod assemblies are distributed in a circular array with the sensor probe as the center, the suction cup pull rod assembly includes a stretching screw, a spring dynamometer and a suction cup connecting rod, the nut of the stretching screw is fixedly installed on the top plate, the stretching screw is vertically arranged to the top plate, the upper end of the spring dynamometer is connected to the lower end of the stretching screw via a rotating connector, the lower end of the spring dynamometer is connected to the upper end of the suction cup connecting rod, and the lower end of the suction cup connecting rod is connected to the suction cup.

3. The wireless contact surface temperature measuring device according to claim 2, characterized in that: The nut of the pressure screw is fixedly installed at the center position of the top plate, and the pressure screw is vertically arranged to the top plate. The lower end of the pressure screw is rotatably connected to a rotating connector, and the lower end of the rotating connector is connected to a pressure plate. The compression spring is located between the rotating connector and the pressure plate, and the pressure plate presses against the upper surface of the pressure sensor.

4. The wireless contact surface temperature measuring device according to claim 3, characterized in that: A guide rod extending vertically downward is also provided on the top plate, a guide portion is extended above the probe mounting seat, the guide portion is sleeved on the guide rod and has the freedom to move up and down relative to the guide rod, and a check rod connected to the guide rod is also provided on the rotating connecting head, the end of the check rod is sleeved on the guide rod and has the freedom to move up and down relative to the guide rod.

5. The wireless contact surface temperature measuring device according to claim 1, characterized in that: The wireless transmission module uses ZigBee wireless technology to transmit signals.

6. The wireless contact surface temperature measuring device according to claim 1, characterized in that: The material of the heat-conducting metal block is red copper; the material of the heat-insulating layer is polyethylene plastic added with glass fiber.

7. The wireless contact surface temperature measuring device according to claim 1, characterized in that: The internal circuit and power supply module include an MCU main control module, a power management module, a battery module, an ADC module, a storage module and an antenna.

8. The wireless contact surface temperature measuring device according to claim 1, characterized in that: The suction cup is a pneumatic suction cup.

9. A temperature measurement method, characterized in that: The wireless contact surface temperature measuring device as claimed in claim 1 comprises the following steps: Attach the suction cup to the surface to be tested; Adjust the pressure screw and adjust the contact pressure between the sensor probe and the measured surface to the set value according to the pressure value measured by the pressure sensor; Collect the measured surface temperature data and pressure data of the corresponding time nodes in real time.

10. A temperature measurement method, characterized in that: The wireless contact surface temperature measuring device as claimed in claim 2 comprises the following steps: Adjust the downward extension length of each top pressure screw rod according to the structure of the measured surface, so that the lower end surface of the sensor probe can fully contact the measured surface; Attach the suction cup to the surface to be measured, and adjust the tension screw of the suction cup pull rod assembly upwards so that each spring dynamometer is in a tension state with the same tension, and the sum of the tensions of all spring dynamometers is greater than twice the set value of the contact pressure between the sensor probe and the surface to be measured; Adjust the pressure screw and adjust the contact pressure between the sensor probe and the measured surface to the set value according to the pressure value measured by the pressure sensor; Collect the measured surface temperature data and pressure data of the corresponding time nodes in real time.

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