A temperature sensor calibration device

Abstract

The present invention provides a temperature sensor calibration device, comprising a flexible heating element, a flexible heat-conducting element, a flexible heat-insulating element and a standard temperature measuring device; the flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are connected in sequence, and the flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are wound around a temperature sensor to be calibrated in sequence; the standard temperature measuring device is used to measure the temperature of the flexible heat-conducting element. The calibration device is convenient to calibrate and has a good calibration effect.

Description

Technical Field

[0001] The present invention relates to the technical field of calibration devices, and in particular to a temperature sensor calibration device. Background Art

[0002] At present, the calibration method of temperature sensors is generally to use a micro low-temperature water tank or a low-temperature dry-body furnace. The calibrated temperature sensor and the standard digital thermometer are placed in a constant temperature source at the same time, and inserted into the water or the opening of the dry-body furnace for comparison. The disadvantages of this calibration are: the dry-body furnace uses air as the heat conduction medium, the conduction efficiency is low, resulting in inaccurate calibration results; the temperature sensor needs to be transported to a laboratory with a low-temperature water tank or a low-temperature dry-body furnace for calibration, which is inconvenient to use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a temperature sensor calibration device which is convenient to calibrate and has good calibration effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A temperature sensor calibration device comprises a flexible heating element, a flexible heat conducting element, a flexible heat insulating element and a standard temperature measuring device;

[0006] The flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are connected in sequence, and the flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are wound around the temperature sensor to be calibrated in sequence;

[0007] The standard temperature measuring device is used to measure the temperature of the flexible heat-conducting member.

[0008] The beneficial effects of the present invention are:

[0009] (1) The calibration device can be carried out of the laboratory to the location of the temperature sensor to be calibrated, which is convenient to use;

[0010] (2) The flexible heat conductor can make the measuring end of the standard temperature measuring device closer to the heat source and the temperature sensor to be calibrated. Compared with air as the heat conducting medium (such as a dry body furnace), it has higher heat conduction efficiency and more reliable measurement results.

[0011] (3) The flexible heating element, the flexible heat conducting element and the flexible heat insulating element connected in sequence can be wound around temperature sensors of different sizes, and are suitable for calibrating temperature sensors of different specifications and sizes. Compared with a micro thermostatic bath and a dry body furnace, the flexible heating element has better applicability.

[0012] (4) The cost of the entire temperature sensor calibration device is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural schematic diagram of a temperature sensor calibration device according to an embodiment of the present invention;

[0014] Figure 2 It is a longitudinal cross-sectional schematic diagram of a temperature sensor calibration device in a curled state according to an embodiment of the present invention;

[0015] Description of labels:

[0016] 1. Flexible heating element;

[0017] 2. Flexible thermal conductor;

[0018] 3. Flexible thermal insulation;

[0019] 4. Standard temperature measuring device;

[0020] 5. Temperature sensor. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0022] The most critical concept of the present invention is that a curlable temperature sensor calibration device is provided, so as to facilitate calibration and obtain more reliable calibration results.

[0023] Please refer to Figure 1-2 , a temperature sensor calibration device, comprising a flexible heating element 1, a flexible heat conducting element 2, a flexible heat insulating element 3 and a standard temperature measuring device 4;

[0024] The flexible heating element 1, the flexible heat-conducting element 2 and the flexible heat-insulating element 3 are connected in sequence, and the flexible heating element 1, the flexible heat-conducting element 2 and the flexible heat-insulating element 3 are wound in sequence on the temperature sensor 5 to be calibrated;

[0025] The standard temperature measuring device 4 is used to measure the temperature of the flexible heat-conducting member 2 .

[0026] From the above description, it can be seen that the beneficial effects of the present invention are:

[0027] (1) The calibration device can be carried out of the laboratory to the location of the temperature sensor to be calibrated, which is convenient to use;

[0028] (2) The flexible heat conductor can make the measuring end of the standard temperature measuring device closer to the heat source and the temperature sensor to be calibrated. Compared with air as the heat conducting medium (such as a dry body furnace), it has higher heat conduction efficiency and more reliable measurement results.

[0029] (3) The flexible heating element, the flexible heat conducting element and the flexible heat insulating element connected in sequence can be wound around temperature sensors of different sizes, and are suitable for calibrating temperature sensors of different specifications and sizes. Compared with a micro thermostatic bath and a dry body furnace, the flexible heating element has better applicability.

[0030] (4) The cost of the entire temperature sensor calibration device is low.

[0031] Furthermore, the flexible heat-conducting component 2 covers the outer wall of the flexible heating component 1 , and the flexible heat-insulating component 3 covers the outer wall of the flexible heat-conducting component 2 .

[0032] From the above description, it can be seen that the flexible heat conductive member 2 covers the outer wall of the flexible heating member 1 and the flexible heat insulating member 3 covers the outer wall of the flexible heat conductive member 2, so that the user can hold the temperature sensor calibration device to avoid being burned, while achieving the effect of heat preservation.

[0033] Furthermore, the flexible heating element 1 is a polyimide film electric heating film.

[0034] Furthermore, the standard temperature measuring device 4 includes a Pt100 platinum thermal resistor temperature sensor embedded in the flexible thermal conductor 2 and a high-precision temperature measuring instrument electrically connected to the Pt100 platinum thermal resistor temperature sensor.

[0035] Furthermore, the flexible heat-conducting member 2 is a soft heat-conducting silicone sheet.

[0036] From the above description, it can be seen that the soft thermally conductive silicone sheet is the best soft thermally conductive material known so far.

[0037] Furthermore, the flexible thermal insulation member 3 is nano-silicon dioxide aerogel felt or glass fiber wool.

[0038] Embodiment 1

[0039] Please refer to Figure 1-2 , this embodiment provides a temperature sensor calibration device, including a flexible heating element 1, a flexible heat conducting element 2, a flexible heat insulating element 3 and a standard temperature measuring device 4;

[0040] The flexible heating element 1, the flexible heat-conducting element 2 and the flexible heat-insulating element 3 are bonded in sequence by high-temperature resistant glue. The standard temperature measuring device 4 includes a Pt100 platinum thermal resistor temperature sensor embedded in the flexible heat-conducting element 2 and a high-precision temperature measuring instrument electrically connected to the Pt100 platinum thermal resistor temperature sensor. Preferably, the flexible heating element 1 is a polyimide film electric heating film, the flexible heat-conducting element 2 is a soft heat-conducting silicone sheet, and the flexible heat-insulating element 3 is nano-silica aerogel felt or glass fiber wool.

[0041] When the temperature sensor needs to be calibrated, the temperature sensor calibration device is curled so that the flexible heating element 1, the flexible thermal conductive element 2 and the flexible thermal insulating element 3 are sequentially wound on the temperature sensor 5 to be calibrated. Preferably, the flexible thermal conductive element 2 covers the outer wall of the flexible heating element 1, and the flexible thermal insulating element 3 covers the outer wall of the flexible thermal conductive element 2. The temperature of the flexible thermal conductive element 2 is measured by a standard temperature measuring device 4 and compared with the temperature measured by the temperature sensor to be calibrated to complete the calibration.

[0042] In summary, the present invention provides a temperature sensor calibration device that is convenient to calibrate and has good calibration effect. The temperature sensor calibration device is easy to use, has reliable calibration results, has a wider range of applications, and has low cost.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A temperature sensor calibration device, characterized in that: It includes a flexible heating element, a flexible heat-conducting element, a flexible heat-insulating element and a standard temperature measuring device; The flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are connected in sequence; When the temperature sensor needs to be calibrated, the temperature sensor calibration device is rolled up so that the flexible heating element, the flexible heat-conducting element and the flexible heat-insulating element are sequentially wound around the temperature sensor to be calibrated, the flexible heat-conducting element covers the outer wall of the flexible heating element, and the flexible heat-insulating element covers the outer wall of the flexible heat-conducting element; The flexible heating element is a polyimide film electric heating film; The standard temperature measuring device is used to measure the temperature of the flexible heat-conducting member.

2. The temperature sensor calibration device according to claim 1, characterized in that: The standard temperature measuring device comprises a Pt100 platinum thermal resistor temperature sensor embedded in a flexible heat conducting member and a high-precision temperature measuring instrument electrically connected to the Pt100 platinum thermal resistor temperature sensor.

3. The temperature sensor calibration device according to claim 1, characterized in that: The flexible heat-conducting member is a soft heat-conducting silicone sheet.

4. The temperature sensor calibration device according to claim 1, characterized in that: The flexible heat insulating member is nano silicon dioxide aerogel felt or glass fiber wool.

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