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Integrated variable-diameter pin type quick response platinum thermal resistor

A platinum thermal resistance, fast response technology, applied in the direction of directly heat-sensitive electrical/magnetic element thermometers, measuring heat, using electrical devices, etc., can solve the problems of temperature sensor thermal response time lag, etc., to achieve simple structure, The effect is remarkable and the effect of improving the accuracy of temperature measurement

Inactive Publication Date: 2011-05-18
上海岗崎控制仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of the thermal response time lag of the existing platinum thermal resistance temperature sensor, the present invention provides a convenient and practical, fast temperature measurement, and a remarkable effect of accurate temperature measurement, which is an integrated variable-diameter pin-type fast-response platinum thermal resistance

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  • Integrated variable-diameter pin type quick response platinum thermal resistor
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  • Integrated variable-diameter pin type quick response platinum thermal resistor

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Embodiment Construction

[0012] Depend on figure 2 It can be seen that the integrated variable-diameter pin-type fast-response platinum thermal resistance includes a platinum thermal resistance 2 and a platinum thermal resistance protection tube 1, which is characterized in that the protection tube 1 is designed with an integrated variable diameter, and the protection tube 1 Built-in high-precision miniature platinum thermal resistance 2, the outer diameter of the platinum thermal resistance 2 is closely matched with the variable-diameter protection tube 1, and the gap between the fits is filled with heat-conducting material 3.

[0013] figure 1 It is a schematic structural diagram of the prior art, and the present invention ( figure 2 ) and prior art ( figure 1 ), taking the temperature-sensing element with the fastest thermal response time of 3 seconds as an example, the stainless steel tube is reduced to a diameter of 1.7mm at the temperature-measuring end by special diameter-reducing equipment...

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Abstract

The invention discloses an integrated variable-diameter pin type quick response platinum thermal resistor, which comprises a platinum thermal resistor element and a protection tube and is characterized in that a platinum thermal resistor protection tube is of integrated variable-diameter structure; a high-precision micro platinum thermal resistor is arranged in the protection tube; the outer diameter of the platinum thermal resistor and the variable-diameter protection tube are in close fit; and heat conduction material is poured into the tiny slits of the fit. The invention has the beneficial effects that: due to the integrated variable-diameter pin structure of the protection tube, the diameter of the protection tube is reduced to 1.7 mm; a high-precision micro platinum thermal resistor element with size 1 / 2 smaller than that of a common platinum thermal resistor is matched so that the platinum thermal resistor and the variable-diameter protection tube are in close fit; and the heat conduction material is poured into the tiny slits of the fit. The invention has the characteristics of simple structure, convenience and practicability, obvious effect and quick temperature measurement; the thermal response time reaches a millisecond level, the temperature measurement accuracy of a temperature sensor is obviously improved, and the aim of saving energy and reducing consumption is achieved.

Description

technical field [0001] The invention belongs to the technical field of platinum thermal resistance temperature-measuring elements, and relates to the improvement of the structure of a pin-type platinum thermal resistance, and the quick thermal response time of the pin-type fast-response platinum thermal resistance. Background technique [0002] At present, there are two commonly used ways to speed up the thermal response time of the temperature sensor. The first is to use the characteristics of the hot junction of the thermocouple temperature sensing element to speed up the thermal response time of the temperature measurement. The second is to control the protection of the temperature sensor. It is made into a welded two-section type, that is, one section of the protection tube equipped with a platinum thermal resistance temperature sensing element is slightly thinner than the other section of the protection tube, so as to reduce the heat dissipation of the temperature sensor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/18
Inventor 何诗豪
Owner 上海岗崎控制仪表有限公司
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