Method and device for measuring temperature of temperature field

Abstract

The invention relates to the technical field of temperature measurement, in particular to a method and device for measuring the temperature of a temperature field. The method for measuring the temperature of the temperature field comprises the steps that 1, a temperature measuring module is divided into m grid cells; 2, current flowing through the temperature measuring module, voltages across the two ends and position data of each grid cell are acquired, and the equivalent resistance of the temperature measuring module and the temperature initial value and the heat conductivity coefficient initial value of each grid cell are calculated; 3, a heat balance equation of the temperature measuring module is established in combination with the density value and specific heat capacity value and parameter values of the temperature measuring module based on the first kind of boundary conditions; 4, the heat balance equation is subjected to discretization, the total resistance value of the temperature measuring module is calculated and acquired through a tabu search algorithm, and when the difference between the equivalent resistance and the total resistance value is smaller than the value A, calculation is stopped. According to the method for measuring the temperature of the temperature field, temperature distribution on the linear or planar temperature field on an object to be measured can be obtained at a time, and measurement precision is high.

Description

technical field [0001] The present invention relates to the technical field of temperature measurement, in particular to a temperature measurement method and device for a temperature field, in particular to a temperature measurement method for a temperature field with a simple structure, small space occupation, high measurement accuracy and little influence on an object to be measured and devices. Background technique [0002] Temperature is a physical quantity that characterizes the degree of coldness and heat of an object. It is one of the important thermal parameters and an important condition for the physical and chemical changes of various substances. There are a large number of temperature measurement needs in industrial and agricultural production and life. At present, there are dozens of methods of temperature measurement, such as expansion thermometry, pressure temperature thermometry, electrical thermometry, magnetic thermometry, acoustic thermometry and frequency ...

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Problems solved by technology

[0005] The object of the present invention is to provide a temperature measurement method and device for a temperature field with a simple structure, small space occupation, high measurement accuracy and little influence on the temperature-measuring object, so as to solve the problem that the existing temperature-measuring device is large in size and occupies a large area. The measurement space is large and only the temperature of a single point where the probe is located can be measured

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