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Method for determining measurement accuracy of on-line moisture meter through SPC

A moisture meter and accuracy technology, which is applied in the field of measuring the accuracy of the online moisture meter by using SPC, can solve the problems of large fluctuation, difficult to control, and large deviation of the measurement accuracy of the online moisture meter, and achieve stable and improved product quality. , the effect of improving the pass rate and improving the accuracy

Active Publication Date: 2013-12-25
HONGTA TOBACCO GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are measurement errors in the test process, which leads to large deviations in the measurement accuracy of the entire online moisture meter during the production process, making the online production quality unstable, fluctuating, and difficult to control; Accuracy determination

Method used

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  • Method for determining measurement accuracy of on-line moisture meter through SPC
  • Method for determining measurement accuracy of on-line moisture meter through SPC
  • Method for determining measurement accuracy of on-line moisture meter through SPC

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Embodiment Construction

[0043] The method of the present invention will be described in further detail below in conjunction with the accompanying drawings and tables.

[0044] In the present invention, the moisture meter on the production line is set up according to the upper, middle and lower parts of the tobacco leaves, and 3 passages are established for each part, and 6 passages are respectively established for special grades, and a total of 15 passages are established; or the passages are established according to the grade and process, and Dynamic alignment is performed for each channel. Using the SPC control technology and combining with the "Cigarette Process Specification", the data processing principle, trend accuracy determination rule and control process of the online moisture meter comparison test are established.

[0045] Then, the production line moisture meter will be set up according to the upper, middle and lower parts of the tobacco leaves, and 3 channels will be established for each...

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Abstract

The invention discloses a method for determining measurement accuracy of an on-line moisture meter through SPC. According to the requirements of production, the purpose of meeting the requirements of measurement and the purpose of meeting the requirement for facilitating operation are taken account of, when the on-line moisture meter is produced, three channels of a production on-line moisture meter are built corresponding to each of an upper portion, a middle portion and a lower portion of each tobacco leaf, six channels of a special grade are further built, and the total number of the built channels is 15; or the channels are built according to the number on a mark board and the working procedures, and comparison is carried out on each channel. Statistical analysis of a primary determination and the measurement process is carried out on accuracy of the on-line moisture meter through basic errors according to comparison data. According to the method for determining measurement accuracy of the on-line moisture meter through SPC, an SPC control chart is used for analyzing stability of measurement accuracy of the on-line moisture meter of tobacco production, accuracy of moisture measurement of tobacco products is improved, the situation that the percent of pass of moisture of the tobacco leaves is greatly improved is ensured, whole-process monitoring is carried out on the production process, random fluctuation and abnormal fluctuation of product quality in the production process are scientifically distinguished, the influence of the random fluctuation and abnormal fluctuation is eliminated by taking measures, and the production process is kept to be in the controllable state that the production process is only influenced by random factors.

Description

technical field [0001] The invention discloses a method for measuring the measurement accuracy of an online moisture meter by using SPC. Background technique [0002] In the past, the online moisture meter in the rebaking workshop of the tobacco company was divided into three channels: upper, middle and lower. The silk workshop established channels according to the brand. The accuracy measurement was simply a static comparison and calibration of each channel. During the daily test, it is found that after the zero point adjustment of the online moisture meter is accurate, its zero point value will tend to shift with time, environmental and other factors (such as figure 1 shown). [0003] There are measurement errors in the test process, which leads to large deviations in the measurement accuracy of the entire online moisture meter during the production process, making the online production quality unstable, fluctuating, and difficult to control; The accuracy of the instrume...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 陈冉邹泉杨光涛戚文辉赵云川肖文平高晓华刘文周明董润美蔡媛旃艳琼
Owner HONGTA TOBACCO GRP
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