Wireless temperature calibration device for pressurized fluid extractor

Abstract

The utility model relates to the technical field of equipment calibration, in particular to a wireless temperature calibration device for a pressurized fluid extraction instrument, which can acquire and store temperature data in the pressurized fluid extraction instrument through a small-volume integrated packaging design. The shell is provided with the outer hexagonal upper shell and the cylindrical lower shell internally provided with the electronic unit, the packaging unit is arranged at the upper end of the shell, and the temperature measuring end of the temperature probe exposed out of the packaging unit is lower than the upper end face of the shell, so that the temperature measuring probe is prevented from being damaged; the packaging unit comprises a spinning cover, a laminated spring and an upper cover which are mounted in sequence, the periphery of the spinning cover made of PEEK is in threaded connection with the inner wall of the outer hexagonal upper shell, and the spinning cover is fixed and is uniformly pressed; the compression sealing performance is enhanced through the deformation of the laminated spring; a plurality of sealing rings are arranged on the upper cover, the temperature probe and the inner cavity wall of the cylindrical lower shell, and the acquisition circuit board and the emission circuit board are fixedly arranged at the upper end and the lower end of the battery module respectively, so that the temperature calibration device is prevented from deformation and liquid feeding under the pressure of 20MPa, and the temperature is measured at the temperature of 0-170 DEG C.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment calibration, in particular to a wireless temperature calibration device for a pressurized fluid extractor. Background Art

[0002] The Pressurized Fluid Extractor (PFE) is an automated sample pretreatment instrument that increases the solubility and diffusion rate of solutes by increasing temperature and pressure, thereby achieving efficient extraction steps. It uses the physical environment of high pressure to increase the boiling point of the solvent. By increasing the temperature, it can increase the diffusion force, improve the solubility, reduce the viscosity and surface tension, and reduce the physical / chemical binding force, so that the extraction time is reduced from more than ten hours of Soxhlet extraction to 15~30 minutes, and the solvent consumption is reduced from the original 200mL to 20~50mL, greatly improving the extraction efficiency and reducing the extraction cost.

[0003] The common working temperature of pressurized fluid extractors is (room temperature ~ 150) °C, and the working pressure is often 10 MPa. At the same time, the volume of some extraction cells is only about 34mL~40mL. At present, some wireless temperature and pressure measuring probes at home and abroad are used for high-pressure steam sterilizers and pulsating vacuum sterilizers in hospital disinfection supply centers, but the applicable temperature is 140 °C, the maximum pressure is 2MPa, and the volume is large.

[0004] Therefore, there is an urgent need for a wireless temperature calibration device that is small in size, meets the needs of a pressurized fluid extractor, works stably and reliably under a pressure of 20 MPa, measures temperatures between (0 and 170) °C, and has a low cost of use. Utility Model Content

[0005] The utility model discloses a wireless temperature calibration device for a pressurized fluid extractor, aiming to solve the technical problems existing in the prior art.

[0006] The utility model adopts the following technical solutions:

[0007] A wireless temperature calibration device for a pressurized fluid extractor is an integrated packaging design and is used to be placed in an extraction tank of the pressurized fluid extractor. The device comprises a main unit with an electronic unit installed inside, a temperature probe unit fixed at the upper end of the inner cavity of the main unit and electrically connected to the electronic unit, and a packaging unit that seals and fixes the temperature probe unit.

[0008] The main unit includes a shell and an electronic unit. The shell made of PEEK material includes an outer hexagonal upper shell at the upper end and a cylindrical lower shell at the lower end. The electronic unit is fixed in the lower chamber of the cylindrical lower shell, and the shell is set to a small volume column type. The height H of the shell should satisfy: 25mm<H<47.5mm.

[0009] The packaging unit is located in the inner cavity of the shell, surrounded by the temperature probe unit, and includes a spin-on cover, a stacked spring and an upper cover that are sealed and installed in sequence from top to bottom. The temperature measuring end of the temperature probe unit is extended outward from the packaging unit and is lower than the upper end surface of the outer hexagonal upper shell.

[0010] In some embodiments, the external thread provided on the outer periphery of the spin-on cover made of PEEK material is matched and connected with the internal thread provided on the external hexagonal upper shell; the inner through hole provided on the upper cover is sealed and fitted with the outer wall of the probe of the temperature probe unit, and the outer wall of the upper cover is sealed and fitted with the inner wall of the cylindrical lower shell.

[0011] In some embodiments, the spin-on cover is provided with a hexagonal through hole along the central axis for disassembly and assembly.

[0012] In some embodiments, the upper cover made of stainless steel includes an upper platform and a lower column, a plurality of sealing grooves are provided on the outer wall of the lower column, and the inner through hole includes an upper center through hole and a lower center through hole arranged in sequence from top to bottom along the center axis.

[0013] The bottom plane of the upper platform is placed on the bottom surface of the upper chamber of the outer hexagonal upper shell, and the outer diameter of the lower column and the inner diameter of the lower chamber are sealed by an outer sealing ring.

[0014] In some embodiments, a sealing ring is provided between the bottom of the packaging unit and the electronic unit.

[0015] In some embodiments, the inner through hole gap provided along the central axis of the stacked spring is sleeved on the outer wall of the temperature probe, and after assembly, the stacked spring maintains a preset deformation amount in the axial direction, so that when the calibration device is under pressure, the stacked spring is pressed and sealed on the upper cover.

[0016] In some embodiments, the temperature probe unit includes a metal base and a temperature probe vertically fixed on the metal base, the metal base matches and fits the lower center through hole, the outer diameter of the temperature probe matches and fits the upper center through hole, and a plurality of external sealing rings are installed between the outer diameter of the temperature probe and the wall of the upper center through hole.

[0017] In some embodiments, the temperature probe is configured as a metal armor, a sensor is disposed inside the top metal outer layer, and the sensor is connected to the electronic unit via a flexible wire.

[0018] In some embodiments, the electronic unit includes a collection circuit board, a battery module and a transmitting circuit board connected from top to bottom in sequence through the flexible wire; the collection circuit board is electrically connected to the sensor, and the battery module is configured as a high temperature resistant battery.

[0019] In some embodiments, the acquisition circuit board includes a single chip microcomputer for controlling temperature acquisition, a memory and an AD circuit for storing data information; the transmitting circuit board includes a wireless communication module connected to the computer for communication and a Hall module that wirelessly connects the calibration device to the computer through a dedicated interface.

[0020] Beneficial Effects

[0021] The utility model discloses a wireless temperature calibration device for a pressurized fluid extractor. Compared with the prior art, the utility model has the following advantages:

[0022] A wireless temperature calibration device for a pressurized fluid extractor, with an integrated packaging design, wherein a main unit comprises a shell and an electronic unit, the shell comprising an outer hexagonal upper shell at the upper end and a cylindrical lower shell at the lower end, the electronic unit being fixedly mounted in the inner cavity of the cylindrical lower shell, the upper end of the electronic unit being sealed and fixedly mounted with a packaging unit, the temperature measuring end of the temperature probe unit being exposed to the packaging unit and being lower than the upper end surface of the shell, thereby ensuring that the temperature calibration device can measure the liquid temperature in the extraction pool and is not easily damaged; the packaging unit comprises a spin-on cover, a stacked spring and an upper cover which are sequentially and sealedly installed from top to bottom, the outer threads provided on the outer periphery of the spin-on cover are matched and connected with the inner threads provided on the inner wall of the outer hexagonal upper shell, thereby better fixing the spin-on cover and making it evenly compressed; the stacked spring is assembled to maintain a preset deformation amount in the axial direction, so that when the calibration device is subjected to pressure, the stacked spring is compressed by its own deformation amount It is sealed on a stainless steel upper cover, which enhances the sealing performance and helps to further seal the internal circuit structure; a plurality of sealing rings are arranged between the inner hole of the upper cover and the outer wall of the temperature probe, a plurality of sealing rings are arranged between the outer wall of the upper cover and the inner wall of the cylindrical lower shell, and a sealing ring is also arranged between the bottom of the packaging unit and the electronic unit, that is, a three-layer sealing design is adopted, which further ensures that the overall structure will not deform and liquid will not enter under a pressure of 20MPa; the shell and the spin-on cover made of PEEK material have poor heat conductivity, which ensures the accuracy of the exposed temperature probe when measuring the liquid temperature of (0-170)℃; the acquisition circuit board and the transmission circuit board provided in the electronic unit are connected to the high-temperature resistant battery module in the middle through flexible wires, ensuring that the internal battery module can be fixed and connected under high-pressure compression to realize power supply to the entire device. Through the small volume design, the wireless temperature calibration device can be sealed in the pressurized fluid extractor to collect and save temperature data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for the description of the embodiment, which constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions explain the utility model and do not constitute an improper limitation on the utility model; in the drawings:

[0024] Figure 1 This is a schematic diagram of the technical solution structure of the wireless temperature calibration device disclosed in the embodiment of the utility model;

[0025] Figure 2 for Figure 1 A-direction view;

[0026] Figure 3 It is a schematic diagram of the technical solution structure in the cross-sectional state of the upper cover;

[0027] Figure 4 It is a schematic diagram of the technical solution structure of the spin-on cover in cross-section;

[0028] Figure 5 for Figure 4 B-direction view;

[0029] Figure 6 A schematic diagram of the technical solution structure of placing a wireless temperature calibration device on an interface and connecting it to a computer;

[0030] Figure 7 The schematic diagram of the technical solution structure is that the wireless temperature calibration device is placed in the extraction cell of the pressurized fluid extractor.

[0031] In the figure:

[0032] Main unit 1; shell 11; outer hexagonal upper shell 111; upper chamber 1111; internal thread 1112; cylindrical lower shell 112; lower chamber 1121; battery module 12; positive electrode 121; negative electrode 122; acquisition circuit board 13; single chip computer 131; memory 132; AD circuit 133; transmitting circuit board 14; wireless communication module 141; Hall module 142; temperature probe unit 2; temperature probe 21; sensor 211; metal outer layer 212; stainless steel base 22; packaging unit 3; screw-on cover 31; internal hexagonal through hole 311; external thread 312; stacked spring 32; internal through hole 321; upper cover 33; upper platform 331; lower cylinder 332; tightening threaded hole 333; upper center through hole 334; lower center through hole 335; sealing groove 336; outer sealing ring 337; inner sealing ring 338; sealing ring 4; flexible wire 5; interface 6; activator 61; computer 7; pressurized fluid extractor 8; top cover 81; extraction cell 82; extraction liquid 83. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings; in the description of the utility model, it should be noted that the "including" mentioned in the specification and the claims is an open term, so it should be interpreted as "including but not limited to"; "several" refers to more than 2.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] like Figure 1-Figure 7 As shown, the technical solution disclosed by the utility model is:

[0037] A wireless temperature calibration device for a pressurized fluid extractor is an integrated packaging design and is used to be placed in an extraction tank 82 of the pressurized fluid extractor 8. It includes a main unit 1 with an electronic unit installed inside, a temperature probe unit 2 fixedly mounted at the upper end of the inner cavity of the main unit 1 and electrically connected to the electronic unit, and a packaging unit 3 that seals and fixes the temperature probe unit 2.

[0038] The main unit 1 includes a shell 11 and an electronic unit. The shell 11 made of PEEK material includes an outer hexagonal upper shell 111 located at the upper end and a cylindrical lower shell 112 located at the lower end. The electronic unit is fixed in the lower chamber 1121 of the cylindrical lower shell 112, and the shell 11 is set to a small volume column type. The height H of the shell 11 should satisfy: 25mm<H<47.5mm, and the optimal height H is set to 47mm.

[0039] The packaging unit 3 is located in the inner cavity of the shell 11, surrounded by the temperature probe unit 2, and includes a spin-on cover 31, a stacked spring 32 and an upper cover 33 made of PEEK material that are sealed and installed in sequence from top to bottom. The temperature measuring end of the temperature probe unit 2 is extended outward from the packaging unit 3 and is lower than the upper end surface of the outer hexagonal upper shell 111.

[0040] like Figure 1-Figure 7 As shown, the preferred embodiment disclosed by the utility model is:

[0041] A wireless temperature calibration device for a pressurized fluid extractor is an integrated packaging design and is used to be placed in an extraction tank 82 of the pressurized fluid extractor 8. It includes a main unit 1 with an electronic unit installed inside, a temperature probe unit 2 fixedly mounted at the upper end of the inner cavity of the main unit 1 and electrically connected to the electronic unit, and a packaging unit 3 that seals and fixes the temperature probe unit 2.

[0042] The main unit 1 includes a shell 11 and an electronic unit. The shell 11 includes an outer hexagonal upper shell 111 located at the upper end and a cylindrical lower shell 112 located at the lower end. The shell 11 is made of PEEK, which is not easy to conduct heat, is strong, and wireless communication can be transmitted; the electronic unit is fixed in the lower chamber 1121 of the cylindrical lower shell 112, and the shell 11 is set to a small volume column type. The height H of the shell 11 should meet the following requirements: 25mm<H<47.5mm, and the optimal size is set to 47mm.

[0043] An internal thread 1112 is provided on the inner wall of the upper end of the upper chamber 1111 of the external hexagonal upper shell 111, which is matched and connected with the external thread 312 provided on the spin-on cover 31. The external hexagon provided on the external hexagonal upper shell 111 is convenient for hand-holding and gripping, and the spin-on cover 31 can be better fixed through the threaded connection to make it evenly pressurized.

[0044] The inner diameter of the lower chamber 1121 provided in the cylindrical lower shell 112 is smaller than the inner diameter of the connected upper chamber 1111 .

[0045] The packaging unit 3 is located in the inner cavity of the shell 11, surrounded by the temperature probe unit 2, and includes a spin-on cover 31, a stacked spring 32 and an upper cover 33 which are sealed and installed in sequence from top to bottom. The temperature probe 21 of the temperature probe unit 2 is extended outward from the packaging unit 3 and is lower than the upper end surface of the outer hexagonal upper shell 111, that is, h>0, so that the temperature probe 21 is protected and is not easily touched when measuring temperature in the extraction pool 82. Figure 1 shown.

[0046] The external thread 312 provided on the outer periphery of the spin-on cover 31 is matched and connected with the internal thread 1112 provided on the external hexagonal upper shell 111. The spin-on cover 31 is provided with an internal hexagonal through hole 311 for disassembly and assembly along the central axis direction. The shell 11 and the spin-on cover 31 made of PEEK material have poor heat conductivity, which ensures that the exposed temperature probe 21 can continuously measure temperature for 1 hour in an environment of 170°C.

[0047] The inner through hole 321 of the stacked spring 32 along the central axis is gap-fitted on the outer wall of the temperature probe 21, and after assembly, the stacked spring 32 maintains a preset deformation amount in the axial direction, so that when the calibration device is under pressure, the stacked spring 32 is pressed and sealed on the upper cover 33.

[0048] The upper cover 33 made of 316 stainless steel includes an upper platform 331 and a lower column 332. The outer wall of the lower column 332 is provided with a plurality of sealing grooves 336. The inner through hole in the middle includes an upper center through hole 334 and a lower center through hole 335 which are sequentially provided from top to bottom along the center axis.

[0049] The upper central through hole 334 and the lower central through hole 335 provided on the upper cover 33 are matched with the outer wall of the temperature probe 21 and the stainless steel base 22 provided on the temperature probe unit 2 respectively.

[0050] A plurality of inner sealing rings 338 are installed between the upper center through hole 334 and the outer wall of the temperature probe 21, and an outer sealing ring 337 is installed in a plurality of sealing grooves 336 provided on the outer wall of the lower column 332 of the upper cover 33, so as to achieve sealing between the upper cover 33 and the lower chamber 1121 of the cylindrical lower shell 112. In this embodiment, two sealing grooves 336 are provided on the outer wall of the lower column 332.

[0051] The bottom plane of the upper platform 331 is placed on the bottom surface of the upper chamber 1111 of the outer hexagonal upper shell 111, and the outer diameter of the lower column 332 is sealed with the inner diameter of the lower chamber 1121 through an outer sealing ring 337. The upper cover 33 is also provided with tightening threaded holes 333 arranged symmetrically with the central axis, so as to further tighten the upper cover 33 by tightening the threads during assembly.

[0052] A sealing ring 4 is also installed between the bottom of the upper cover 33 and the electronic unit. The outer sealing ring 337, the inner sealing ring 338 and the sealing ring 4 are all set as thickened sealing rings. The three-layer sealing design further ensures that the overall structure will not be deformed or infiltrated with liquid under a pressure of 20 MPa.

[0053] The temperature probe unit 2 includes a stainless steel base 22 and a temperature probe 21 vertically fixed on the stainless steel base 22. The stainless steel base 22 matches and fits with the lower center through hole 335. The outer diameter of the temperature probe 21 matches and fits with the upper center through hole 334. A plurality of outer sealing rings 337 are installed between the outer diameter of the temperature probe 21 and the wall of the upper center through hole 334.

[0054] The temperature probe 21 is configured as a metal armor, and a sensor 211 is provided in the metal outer layer 212 at the top. In this embodiment, the sensor is pt1000. The sensor 21 is connected to the collection circuit board 13 provided in the electronic unit through a flexible wire 5.

[0055] The electronic unit includes a collection circuit board 13, a battery module 12 and a transmitting circuit board 14 which are connected in sequence from top to bottom through the flexible wire 5; the collection circuit board 13 is electrically connected to the sensor 21 to transmit the collected temperature data to the circuit, and the battery module 12 is set as a high-temperature resistant battery; the collection circuit board 13 and the transmitting circuit board 14 are two circular circuit boards, which are respectively fixed on the side walls of the lower chamber 1121, and the positive and negative springs of the battery module 12 are left between the collection circuit board 13 and the transmitting circuit board 14, which can fix and connect the internal high-temperature resistant battery module 12 in a compressed state to realize power supply for the entire device.

[0056] The acquisition circuit board 13 includes a single-chip microcomputer 131 for controlling temperature acquisition, and the single-chip microcomputer 131 also includes a MAC timer module and an RF transceiver, a memory 132 and an AD circuit 133 for storing data information; the transmitting circuit board 14 includes a wireless communication module 141 connected to the computer 7 for communication and a Hall module 142 that wirelessly connects the calibration device to the computer 7 through a dedicated interface 6.

[0057] The pressurized fluid extractor 8 is provided with an extraction pool 82, and the extraction pool 82 is filled with an extraction liquid 83. The volume of the extraction pool in this example is only 34 mL. In this example, the overall height of the calibration device is selected to be 47 mm, which meets the height requirement for placing the inner cavity. The calibration device is placed in the extraction pool 82, and the end of the outer hexagonal upper shell 111 is placed downward in the extraction liquid 83, and the top cover 81 is screwed on. The computer 7 runs the extraction program, and the temperature probe 21 provided in the wireless temperature calibration device measures the temperature in real time, and the temperature information is collected and transmitted to the electronic unit for storage.

[0058] The calibration device is placed on the interface 6, and the Hall module 142 wirelessly connects the main unit 1 to the computer 7 through the dedicated interface 6. The interface 6 is provided with a platform for placing the main unit 1, and an activator 61 is provided inside. The activator 61 activates the Hall module 142, that is, the interface 6 is connected to the computer 7 software, and a communication connection is established with the computer 7 through the wireless communication module 141, and the computer 7 reads the temperature information stored in the memory 132.

[0059] The wireless calibration device is controlled by the circuit, and the sampling frequency is set. The sampling frequency can be set to 10 times per second at the fastest and once every 180 seconds at the slowest. The working time can be set, such as 1h, 3h, 6h or custom start and stop time. The calibration device can store data offline and transmit data to the real-time data display interface of the software in real time.

[0060] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A wireless temperature calibration device for a pressurized fluid extractor, which is an integrated package design and is used to be placed in an extraction cell of the pressurized fluid extractor, characterized in that: It comprises a main body unit with an electronic unit installed therein, a temperature probe unit fixedly mounted at the upper end of the inner cavity of the main body unit and electrically connected to the electronic unit, and a packaging unit sealing and fixing the temperature probe unit; The main unit includes a shell made of PEEK material and an electronic unit. The shell includes an outer hexagonal upper shell at the upper end and a cylindrical lower shell at the lower end. The electronic unit is fixed in the lower chamber of the cylindrical lower shell, and the shell is set to a small volume column type. The height H of the shell should meet the following requirements: 25mm<H<47.5mm; The packaging unit is located in the inner cavity of the shell, surrounded by the temperature probe unit, and includes a spin-on cover, a stacked spring and an upper cover that are sealed and installed in sequence from top to bottom. The temperature measuring end of the temperature probe unit is extended outward from the packaging unit and is lower than the upper end surface of the outer hexagonal upper shell.

2. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 1, characterized in that: The outer thread provided on the outer periphery of the spin-on cover made of PEEK material is matched and connected with the inner thread provided on the external hexagonal upper shell; the inner through hole provided on the upper cover is sealed and fitted with the outer wall of the probe of the temperature probe unit, and the outer wall of the upper cover is sealed and fitted with the inner wall of the cylindrical lower shell.

3. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 2, characterized in that: The spin-on cover is provided with a hexagonal through hole along the central axis direction for disassembly and assembly.

4. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 2, characterized in that: The upper cover made of stainless steel includes an upper platform and a lower column, a plurality of sealing grooves are arranged on the outer wall of the lower column, and the inner through hole includes an upper center through hole and a lower center through hole arranged in sequence from top to bottom along the central axis; The bottom plane of the upper platform is placed on the bottom surface of the upper chamber of the outer hexagonal upper shell, and the outer diameter of the lower column and the inner diameter of the lower chamber are sealed by an outer sealing ring.

5. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 4, characterized in that: A sealing ring is also arranged between the bottom of the packaging unit and the electronic unit.

6. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 4, characterized in that: The inner through hole gap provided along the central axis of the stacked spring is sleeved on the outer wall of the temperature probe, and after assembly, the stacked spring maintains a preset deformation amount in the axial direction, so that when the calibration device is under pressure, the stacked spring is pressed and sealed on the upper cover.

7. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 6, characterized in that: The temperature probe unit includes a metal base and a temperature probe vertically fixed on the metal base. The metal base matches and fits the lower center through hole. The outer diameter of the temperature probe matches and fits the upper center through hole. A plurality of outer sealing rings are installed between the outer diameter of the temperature probe and the wall of the upper center through hole.

8. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 7, characterized in that: The temperature probe is provided with a metal armor, a sensor is arranged in the top metal outer layer, and the sensor is connected with the electronic unit through a flexible wire.

9. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 8, characterized in that: The electronic unit includes a collection circuit board, a battery module and a transmitting circuit board which are connected from top to bottom in sequence through the flexible wire; the collection circuit board is electrically connected to the sensor, and the battery module is configured as a high temperature resistant battery.

10. The wireless temperature calibration device for pressurized fluid extraction instrument according to claim 9, characterized in that: The acquisition circuit board includes a single chip microcomputer for controlling temperature acquisition, a memory and an AD circuit for storing data information; the transmitting circuit board includes a wireless communication module connected to the computer for communication and a Hall module that wirelessly connects the calibration device to the computer through a dedicated interface.

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