Latest Technology of QCS Caliper Sensor

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Other Title
  • ＱＣＳキャリパー計の最新技術
  • QCS キャリパーケイ ノ サイシン ギジュツ

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Abstract

Measuring the thickness of the web by using conventional caliper sensor has been achieved through the use of dual-side, contacting caliper sensors. Therefore, there has a problem of the flaw on the paper surface and sensor abrasion damage.<br> On that occasion, paper makers have been asking for a new type of caliper measurement, which overcomes the weaknesses of contacting caliper. Most of the QCS makers have been using laser sensor to measure the thickness.However,Ishinomaki Mill introduces Yokogawa's non-contact (one side light-touch) caliper sensor which is based on a combination of two techniques chromatic aberration and confocal displacement.This one can expect the improvement to eliminate the problems of the flaw and marking on the paper,sensor contact abrasion and dirt deposit on the contact.<br> This report presents the outline of introducing optical caliper sensor which we introduced into Ishinomaki mill N6.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 65 (3), 232-236, 2011

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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