Surface temperature measurement method based on thermoelectric effect
A technology of thermoelectric effect and surface temperature, which is applied to thermometers, thermometers, and heat measurement of directly heat-sensitive electrical/magnetic components, can solve data errors and other problems, and achieve error elimination, high precision, and interference elimination. The effect of assembly difficulty
Inactive Publication Date: 2020-10-09
QINGDAO UNIV
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[0003] Temperature is the most basic and important physical parameter. In the prior art, the contact temperature measurement method for surface temperature measurement needs to arrange temperature sensors to test the object to be measured, and is caused by the sensor and external interference. There are obviously additional errors between the measured data and the actual situation
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[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029] Factors such as temperature and heat flow inside the battery are important factors that affect battery performance and life. The invention is used for the temperature and heat flow test of the battery cells inside the battery pack. Based on the technical principle of thermoelectric effect, such as figure 2 As shown, the system includes a thermoelectric element 1, a battery cell A2, a battery cell B3, an ammeter 4, a voltmeter 5, a controller 6, and a switch 7. The battery cell A2 and the battery cell B3 are used as the temperature measurement object A and the temperature measurement Obje...
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The invention provides a surface temperature measurement method based on a thermoelectric effect, and the temperature is obtained by measuring electrical parameters by using the thermoelectric effectand the heat flow measurement is combined. According to the method, the surface temperature can be obtained without arranging an independent surface temperature sensor, the interference of the temperature sensor to a measured object and the assembly difficulty are eliminated, and the simultaneous measurement of heat flow and temperature in a small internal space is facilitated. The thermal measurement problem of the thermal management application is solved, and the full functions of the thermal management application of the thermoelectric effect are achieved. An error generated by the internalresistance of an ammeter is considered and corrected, and the precision is high. The method has the advantages of convenience in use, flexible layout and low cost, the application level of thermal management can be effectively improved, the method is widely used in internal small space temperature and heat flow measurement in different temperature regions, and especially the temperature and heatflow tests inside a battery are satisfied.
Description
technical field [0001] The invention relates to a surface temperature measurement method based on thermoelectric effect, in particular to a surface temperature measurement method based on thermoelectric effect combined with heat flow measurement. Background technique [0002] The thermoelectric effect is a reversible physical effect (Peltier effect, Thomson effect, Seebeck effect, etc.), and its related technologies can realize thermoelectric power generation or electric drive to realize cooling and heating. The thermoelectric effect of the semiconductor is quite significant. The semiconductor refrigeration module that is widely used at present has the advantages of small size, no mechanical moving parts, and simple and convenient control. [0003] Temperature is the most basic and important physical parameter. In the prior art, the contact temperature measurement method for surface temperature measurement needs to arrange temperature sensors to test the object to be measure...
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IPC IPC(8): G01K7/02
CPCG01K7/02
Inventor 郑艺华其他发明人请求不公开姓名
Owner QINGDAO UNIV