WZC1-430F thermocouple measurement compensation method under 36-45 DEG C

A compensation method, thermocouple technology, applied in measuring devices, measuring heat, thermometers with directly sensitive electrical/magnetic components, etc., can solve the accuracy error of controller data processing, temperature and actual temperature error, production process Influence and other issues to achieve the effect of enhancing measurement accuracy

Active Publication Date: 2015-09-09
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

However, in the process of temperature measurement, due to errors in the data processing accuracy of the controller, there is a certain

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  • WZC1-430F thermocouple measurement compensation method under 36-45 DEG C

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Embodiment Construction

[0009] WZC1-430F thermocouple is a Cu50 thermocouple that can measure the temperature in the range of -50°C to 150°C. The measurement process is used in the range of -50°C to 150°C. The resistance is linearly proportional to the temperature, but in In practice, the relationship between resistance and temperature is not completely linear, and as the temperature increases, the linear relationship becomes worse and worse.

[0010] figure 1 It is the temperature-resistance schematic diagram of WZC1-430F thermocouple at 36°C-45°C. We found that the temperature and resistance in the temperature-resistance are proportional index relationship, It is a mathematical constant, which is the base number of the natural logarithm function. After calculation, the function value is obtained , R is the resistance value of WZC1-430F thermocouple, It is the corresponding temperature value. After many tests, it is found that the actual temperature of the WZC1-430F thermocouple is closest to...

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Abstract

The invention belongs to the temperature measurement field of a Cu50 temperature sensor and specifically relates to a WZC1-430F thermocouple measurement compensation method under 36-45 DEG C. The method comprises the following steps: the step 1) carrying out temperature measurement by utilizing a WZC1-430F thermocouple, the measured result temperature being T, and reading the resistance value R of the thermocouple at the moment; and the step 2) introducing a function T<1>=0.0445e<0.1161R> (refer to the specification), wherein the e is a mathematical constant and is a base number of a natural logarithm function, and the R is the resistance value of the thermocouple read in the step 1), and calculating and obtaining the value of the T<1>, and the actual temperature value at the moment is (T+T<1>)/2. The method improves the measurement accuracy of the Cu50 temperature sensor under the 36-45 DEG C without increasing a lot of cost.

Description

technical field [0001] The invention belongs to the field of temperature measurement by a Cu50 temperature sensor, in particular to a method for measuring and compensating a WZC1-430F thermocouple at 36°C-45°C. Background technique [0002] In the production process of the metallurgical industry, temperature detection is an indispensable link. Different temperature ranges and different temperature measurement requirements require different instruments, such as Cu50 temperature detection range (-50 ° C ~ 150 ° C), suitable for detection areas the average temperature. However, in the process of temperature measurement, due to errors in the data processing accuracy of the controller, there is a certain error between the detected and calculated temperature and the actual temperature, which has a certain impact on the production process. In order to correct and compensate the measured temperature data, it is necessary to perform temperature compensation calculations for the meas...

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Application Information

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IPC IPC(8): G01K7/02G01K1/00
Inventor 王晓斌李小龙
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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