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계량탱크에서의 무게측정치를 이용한 원료투입량 제어

Feeding Rate Control Using Weight Measurement in a Weighing Tank

HWAHAK KONGHAK, October 1993, 31(5), 618-622(5), NONE
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Abstract

유량계를 이용하지 않고 계량탱크(weighing tank)에서의 무게측정치를 이용하여 원료를 일정한 유량으로 투입할 수 있는 새로운 제어바법을 유량제어계의 루프해석을 통하여 제시하였다. 제시된 제어방법의 성능을 설정치 추적성능, 측정잡음에 대한 민감도의 관점에서 분석하였으며, 그 성능을 무게측정치를 직접 이용하는 다른 유량제어방법들과 비교하였다. 그 결과, 제시된 제어방법이 이 두 관점에서 모두 우수한 것으로 분석되었으며 실험을 통하여 이를 다시 확인할 수 있었다.
A novel method for flow rate control in a batch feeding system was proposed through transforma-tion of the conventional flow rate control loop. The proposed method does not need a flow rate measuring device, and directly utilizes the weight measurement in the weighing tank. Performance of the proposed control method was analyzed in the viewpoints of set point tracking as well as sensitivity to measurement noise, and was compared with those of other conceivable control methods which directly use the weight measurement. As a consequence, the proposed method was analyzed to be superior to the other flow rate control methods, which was again confirmed through experiments.

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Private Communication with Jong Sung Son, Manager of Technical Team, Chemicals Division in Cheil Industries Inc.

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