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Calibration method for infrared moisture meter system

A system calibration and moisture meter technology, applied in the measurement of color/spectral characteristics, etc., can solve the problem of low detection accuracy of infrared moisture detection with hysteresis, and achieve the effect of saving manpower

Inactive Publication Date: 2010-01-27
BAOFENG REDRYING FACTORY OF TIANCHANG INT TOBACCO CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of detection hysteresis and low accuracy of infrared moisture detection in the prior art, and provide a system calibration method for infrared moisture meter

Method used

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  • Calibration method for infrared moisture meter system
  • Calibration method for infrared moisture meter system
  • Calibration method for infrared moisture meter system

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Calibration method of the static infrared moisture meter system, the method includes in sequence:

[0034] (1) Establish a wide-area model on the static infrared moisture meter: within the actual working moisture range of the material, select different points on the production line that cover the possible range of moisture content of the actual material to sample separately. The samples taken are at least five samples, each The samples were detected by an indoor static infrared moisture meter and the detection signal value was recorded, and then the moisture content of the sample was detected by an oven and the detection data was recorded. The oven detection data and the infrared moisture meter detection signal value were regressed to establish a relationship function y wide domain = f1(x static);

[0035] In the actual working moisture range, the data measured according to the above steps are shown in Table 1. The data are divided into three groups, each group has se...

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Abstract

The invention relates to a calibration method for an infrared moisture meter system, including a calibration method for an static infrared moisture meter system and the application of the calibration method for the static infrared moisture meter system in a modeling method of calibration of an online infrared moisture meter, namely a calibration method for an online infrared moisture meter. The calibration method for the on-line infrared moisture meter sequentially includes the following steps: (1) a wide-domain model is established on a static infrared moisture meter; (2) a dynamic wide-domain model is established on the static infrared moisture meter; (3) a narrow-domain model is established; (4) relation functions for detection signals of the dynamic and the static infrared moisture meters are established; (5) transition models for dynamic and static relation functions are established. The calibration method for the infrared moisture meter, which is used for calibrating the online infrared moisture meter, has the advantages of fastness, accuracy, convenience and simplicity and can save a great amount of labor power and material resources.

Description

technical field [0001] The invention relates to a modeling method of a measuring instrument, in particular to a system calibration method of an infrared moisture meter. Background technique [0002] At present, manufacturers of infrared moisture meters solidify the original signal on the system before leaving the factory. The calibration of infrared moisture meters generally adopts a single-point correction method and a multi-point secondary modeling method. The single-point correction method is to sample at the same point3 ~5 samples, first do the infrared moisture meter test and then do the oven method test to get the average difference and correct the result. The multi-point secondary modeling method is to take more than 5 points that can cover the moisture samples that may appear in the measured material, and regress the detection results of the infrared moisture meter and the detection results of the oven to establish a one-dimensional linear function model. For the tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
Inventor 袁红星冯辉杜阅光张志坚党霞周言木何震凯董亚非周永涛
Owner BAOFENG REDRYING FACTORY OF TIANCHANG INT TOBACCO CO LTD
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