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Temperature sensor calibration method based on twice application of polynomial fitting

A polynomial fitting, temperature sensor technology, applied in the field of temperature sensor calibration based on two polynomial fittings, can solve the problems of ignoring the temperature error of the incubator, ignoring the error of the acquisition channel, etc.

Inactive Publication Date: 2016-03-02
鼎奇(天津)主轴科技有限公司
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Problems solved by technology

There are two main problems in the existing method of calibrating the temperature sensor by using an incubator. 1. The temperature error of the incubator is ignored; 2. The error of the acquisition channel is ignored.

Method used

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  • Temperature sensor calibration method based on twice application of polynomial fitting
  • Temperature sensor calibration method based on twice application of polynomial fitting
  • Temperature sensor calibration method based on twice application of polynomial fitting

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Embodiment Construction

[0018] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0019] see Figure 1-6 , a temperature sensor calibration method based on twice polynomial fitting, including the process of establishing the functional relationship between the display value and the theoretical value of the incubator by using the polynomial fitting method for the first time, using the calibration results of the incubator when it leaves the factory, using The method of polynomial fitting establishes the functional relationship between the display value of the thermostat and the theoretical value, and obtains the theoretical value corresponding to any display value of the thermostat, thereby reducing or eliminating the error of the thermostat itself;

[0020] For the second time, the polynomial fitting method is used to calibr...

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Abstract

The invention discloses a temperature sensor calibration method based on twice application of polynomial fitting. The method comprises the establishment process of a function relation between a display value of a thermostat and a theoretical value with a polynomial fitting method for the first time and the calibration process of temperature sensors with the polynomial fitting method for the second time, wherein the establishment process of the function relation between the display value of the thermostat and the theoretical value with the polynomial fitting method for the first time comprises application of the polynomial fitting method and establishment of the function relation between the display value of the thermostat and the theoretical value and can reduce or eliminate the temperature error of the thermostat; in terms of the calibration process of the temperature sensors with the polynomial fitting method for the second time, the temperature sensors correspond to data acquisition channels in a one-to-one manner, correction coefficients of the channels are acquired with the polynomial fitting method, and accordingly, the errors of the data acquisition channels are reduced or eliminated while the temperature sensors are calibrated.

Description

technical field [0001] The invention relates to the field of sensor calibration, in particular to a temperature sensor calibration method based on twice using polynomial fitting. Background technique [0002] As an important tool for monitoring temperature, temperature sensor is widely used in industrial production. However, due to its own errors and interference from external factors, the measured value of the instrument and equipment will deviate from the actual real value. In order to eliminate the deviation, it is necessary to use the standard The measuring instruments used are calibrated. The existing method of calibrating the temperature sensor by using an incubator mainly has two problems, 1. The temperature error of the incubator is ignored; 2. The error of the acquisition channel is ignored. Therefore, how to solve the above two problems and further improve the calibration accuracy of the temperature sensor has become an urgent problem to be solved. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K15/00
Inventor 吕术亮
Owner 鼎奇(天津)主轴科技有限公司
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