Temperature sensing device
A technology of temperature sensing and measuring parts, which is applied in the field of temperature sensing devices, and can solve problems such as the ineffective reduction of contact thermal resistance and the distortion of measured temperature
Inactive Publication Date: 2009-11-04
FU ZHUN PRECISION IND SHENZHEN +1
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[0002] Traditional temperature sensing devices include thermocouple wires, sheathed thermocouple probes, and resistance temperature detectors (RTDs). Under the condition that the temperature sensing part (hot junction) is in good contact with the measured object, the temperature sensing device can only display the correct temperature of the measured object when the temperature sensing part and the measured object reach thermal equilibrium, so reduce the temperature sensing part The contact thermal resistance between the temperature sensing device and the measured object is the key to ensure the accurate temperature measurement of the temperature sensing device; however, in practical applications, often due to the limited space between the temperature sensing device and the measured object, the temperature sensing part The shape, the shape of the measured object, and the contact method between the temperature sensing part and the measured object make the contact thermal resistance unable to be effectively reduced, resulting in the distortion of the measured temperature
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[0018] figure 1 is an assembly diagram of the first embodiment of the temperature sensing device of the present invention, figure 2 yes figure 1 The three-dimensional assembly diagram of the temperature sensor, image 3 yes figure 2 A three-dimensional view of the middle temperature sensing element; the temperature sensing device 100 includes a clamp 10 and a pair of temperature sensing elements 20a, 20b. in:
[0019] The clamp 10 is composed of a pair of clamping parts 11 and at least one spring 12. The middle part of the pair of clamping parts 11 is combined by a pivot 111 and a pair of elongated clamps 112a, 112b are formed at one end and corresponding to the other end. A pair of handles 113 are formed, and the pair of clamps 112a, 112b are used to provide close thermal contact between the temperature sensing parts 20a, 20b and the conductive measured object (for example: metal object); in the clamping part 11 At least one spring 12 is provided on the pivot shaft 111...
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The invention relates to a temperature sensing device which comprises a clamp and a pair of temperature sensing pieces. The clamp comprises a pair of clamping heads used for providing tight heat contact between two temperature sensing parts of the temperature sensing device and sensed objects with conductivity; the pair of temperature sensing pieces is arranged between the two clamping heads and is respectively and fixedly arranged on the two clamping heads of the clamp to form the temperature sensing parts of the temperature sensing device. Each temperature sensing piece at least comprises a temperature sensing element, the temperature sensing element comprises a temperature sensing line, and the two temperature sensing lines of the pair of the temperature sensing pieces have different polarity and are used for accurately measuring the temperature of the sensed objects with the conductivity.
Description
technical field [0001] The present invention relates to a temperature sensing device, in particular to a temperature sensing device for measuring the temperature of a conductive object. Background technique [0002] Traditional temperature sensing devices include thermocouple wires, sheathed thermocouple probes, and resistance temperature detectors (RTDs). Under the condition that the temperature sensing part (hot junction) is in good contact with the measured object, the temperature sensing device can only display the correct temperature of the measured object when the temperature sensing part and the measured object reach thermal equilibrium, so reduce the temperature sensing part The contact thermal resistance between the temperature sensing device and the measured object is the key to ensure the accurate temperature measurement of the temperature sensing device; however, in practical applications, often due to the limited space between the temperature sensing device and ...
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IPC IPC(8): G01K7/00G01K7/02G01K1/16G01K1/14
CPCG01K7/02G01K1/146
Inventor 刘泰健
Owner FU ZHUN PRECISION IND SHENZHEN
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