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A temperature measuring resistor

A technology for measuring temperature resistance and resistance, applied in thermometers, measuring heat, measuring devices, etc., can solve the problems of large influence on the measurement results of the measurement environment temperature change, long measurement time, complicated measurement process, etc., to achieve improved stability and convenience The effect of measurement, high precision resistance matching

Active Publication Date: 2020-04-24
ZHONGHANG ELECTRONICS MEASURING INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The measurement time of the prior art measurement method is long, the measurement process is complicated, and the heat source voltage, the installation position of the thermocouple and its accuracy, the change of the measurement environment temperature, etc. have a great influence on the measurement results

Method used

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  • A temperature measuring resistor
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Examples

Experimental program
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Effect test

Embodiment 1

[0035] Example one, see for details figure 2 , The resistance pattern adds a grid-shaped adjustment grid for adjusting the resistance value, that is, the heating resistance grinding type regulating grid 6 and the temperature measuring resistance grinding type regulating grid 8. The thickness of the regulating grid metal foil is reduced by mechanical grinding to realize the measurement The fine adjustment of the temperature resistance and the heating resistance ensures that the resistance values ​​of the temperature measurement resistance and the heating resistance are similar or equal; finally, the integration of self-heating and temperature measurement is realized, and it has the functions of real-time heating and real-time temperature measurement.

Embodiment 2

[0036] Example two, see for details Figure 4 , In the resistance pattern, a short-circuit ring-type adjustment gate with precise adjustment of the resistance value is added, that is, the heating resistance short-circuit cutting adjustment gate 11 and the thermal resistance short-circuit cutting adjustment gate 12 are realized by mechanical cutting or laser cutting process methods. The fine adjustment of the temperature measuring resistance and the heating resistance ensures that the resistance values ​​of the temperature measuring resistance and the heating resistance are similar or equal; finally the integration of self-heating and temperature measurement is realized, and it has the functions of real-time heating and real-time temperature measurement. This design has little effect on the working grid of the temperature measuring resistor and the working grid of the heating resistor, and has high resistance adjustment accuracy and good stability.

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Abstract

The invention discloses a temperature measurement resistor which has a self-heating real-time temperature measurement function and aims at rapidly, accurately, stably and conveniently measuring the thermal conductivity coefficient of solid material. The adopted technical scheme is that the temperature measurement resistor comprises a substrate. The bottom surface of the substrate is provided with a heat-conducting metal foil. The top surface of the substrate is provided with a measurement metal foil. The heat-conducting metal foil and the measurement metal foil are respectively adhered with the substrate through an adhesive layer. The measurement metal foil comprises a heating resistor and the temperature measurement resistor. The heating resistor comprises heating resistor working gates which are arranged in a planar spiral shape. One end of the heating resistor working gates is provided with a heating resistor connecting A end, and the other end is provided with a heating resistor connecting B end. The temperature measurement resistor comprises temperature measurement resistor working gates which are arranged in the planar spiral shape. One end of the temperature measurement resistor working gates is provided with a temperature measurement resistor connecting A end, and the other end is provided with a temperature measurement resistor connecting B end. The heating resistor working gates and the temperature measurement resistor working gates are equidistantly arranged in a mutually parallel and nested way.

Description

Technical field [0001] The invention relates to a temperature measuring resistor, in particular to a temperature measuring resistor capable of real-time self-heating. Background technique [0002] At present, the thermal conductivity of materials often needs to be determined through experiments. The steady-state method has been widely used to measure the thermal conductivity of materials. The principle is to use the equilibrium state in which the heat transfer rate is equal to the heat dissipation rate during the stable heat transfer process. According to the Fourier one-dimensional steady-state heat conduction model, the thermal conductivity is calculated from the heat flux density, temperature difference and thickness of the test sample. [0003] When using the steady-state method to determine the thermal conductivity of a material, first use a heat source to heat the test sample, and form a stable temperature analysis inside the sample, and then perform the measurement. Using ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/16G01K7/18G01N25/20G01N25/18
CPCG01K7/16G01K7/18G01K7/183G01N25/18G01N25/20
Inventor 晏志鹏雒平华张勋熊英刘旭任博哲
Owner ZHONGHANG ELECTRONICS MEASURING INSTR