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http://dx.doi.org/10.4313/JKEM.2006.19.4.328

Development of a Pressure Measurement System with the Parallel Structure  

Yun, Eui-Jung (호서대학교 정보제어공학과)
Kim, Jwa-Yeon (호서대학교 신소재공학과)
Lee, Kang-Won (한국생산기술연구원 메카트로닉스팀)
Lee, Seok-Tae (한국생산기술연구원 메카트로닉스팀)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.4, 2006 , pp. 328-333 More about this Journal
Abstract
In this paper, we developed a pressure measurement apparatus with the parallel structure to improve the measurement efficiency of pressure sensors by reducing the measurement time of pressure. The developed system has two parallel positions for loading Silicon pressure sensor and has a dual valve structure. The semiconductor pressure sensors prepared by Copal Electronics were used to confirm the performance of the developed measurement system. Two stage differential amplifier circuit was employed to amplify the weak output signal and the amplified output signal was improved utilizing a low-pass filter. New apparatus shows the measurement time of pressure two times shorter than that of conventional one with the serial structure, while both structures show the similar linear output versus pressure characteristics.
Keywords
Silicon pressure sensor; Pressure measurements; Serial structure; Parallel structure;
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