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High-accuracy wall temperature measuring device

A temperature measurement, high-precision technology, used in measuring devices, thermometers, measuring heat, etc., can solve the problems of low measurement accuracy, inability to solve the measurement contact surface, and measurement signals are susceptible to external interference, etc., to achieve high measurement accuracy and anti-interference. Strong ability, the effect of reducing heat leakage

Active Publication Date: 2015-05-13
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology cannot solve technical problems such as the small measurement contact surface, the measurement signal is easily disturbed by the outside world, and the measurement accuracy is low.

Method used

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  • High-accuracy wall temperature measuring device
  • High-accuracy wall temperature measuring device

Examples

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, this embodiment includes: a seat part, a probe part and a metal conduit 4, wherein: the end of the metal conduit 4 is elastically connected to the seat part, and the head end is movably connected to the probe part.

[0025] The seat part includes: a compression nut 1 and a probe seat body 3 , wherein a metal conduit 4 is movably arranged inside the probe seat body 3 and its end contacts the compression nut 1 through an elastic member 2 .

[0026] The elastic member 2 is preferably a pre-compressed spring.

[0027] The top of the probe seat body 3 is provided with a fixing nut 6, and the fixing nut 6 is used to fix the detection device on the frame above the measured wall.

[0028] Preferably, at least one gasket 5 is provided between the fixing nut 6 and the probe base body 3 .

[0029] Such as figure 2 As shown, the probe part includes: a metal wire tube 7, a probe body 9, a temperature sensing element 12 and a metal contact piece 13 fixe...

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PUM

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Abstract

The invention provides a high-accuracy wall temperature measuring device. The high-accuracy wall temperature measuring device comprises a base part, a probe part and a metal guide tube, wherein the tail end of the metal guide tube is elastically connected with the base part, while the front end of the metal guide tube is movably connected with the probe part; the probe part comprises a metal wire tube, a probe body, a temperature-sensing element and a metal contact piece, all of which are orderly and fixedly connected with each other, and wherein one end of the metal wire tube is nested into the metal guide tube and the other end of the metal wire tube is fixedly connected with the probe body. The high-accuracy wall temperature measuring device is fixed above the wall; the probe is kept into close contact with the wall by virtue of the elastic force of a spring in the probe base to measure the temperature of the wall; besides, the device is high in temperature sensing capability, high in output signal strength and high in measurement accuracy.

Description

technical field [0001] The invention relates to a technology in the field of temperature detection, in particular to a device for measuring wall surface temperature with high precision using thermal resistance. Background technique [0002] The measurement of wall temperature is very extensive in industrial production. After searching the existing literature and actual investigation, it is found that most of the wall surface temperature measurement is carried out by thermocouples directly pasted or spot welded on the measured wall surface. Since the measurement signal of the thermocouple is relatively small, only tens of millivolts, it is very susceptible to external interference in practical applications, and the resulting measurement deviation usually reaches several degrees Celsius or even more than ten degrees Celsius. In addition, the thermocouples that are directly spot-welded or pasted on the wall are relatively fragile, easily damaged, and difficult to disassemble, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/16
Inventor 晋欣桥王逸骏史万涛王崇亮何军杜志敏
Owner SHANGHAI JIAO TONG UNIV
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