Title :
High precision intelligent apparatus driven by a step motor for measuring liquid level
Author :
Han, Yu-Xiang ; Zhou, Jian-Hui ; Kang, Jian-Zhong ; Yiang, Xing-Hai
Author_Institution :
Xian Petroleum Inst., China
Abstract :
This paper presents a steel rope float type apparatus driven by a step motor for measuring liquid level. The apparatus consists of a tank top gauge, a pulse power supply, a STD industrial computer (Z80CPU) and a multiplexer. This apparatus has the features of very simple mechanic construction of the top gauge, uncomplicated circuit, highly accurate measurement, almost no influence by surrounding temperature variation, low cost, convenient operation, and easy maintenance. It can be not only used in making a long distance tour of tank group measurements but also can be plugged into a distributed control system (DCS) so as to directly provide data
Keywords :
computerised instrumentation; level measurement; microcomputer applications; stepping motors; STD industrial computer; Z80CPU; computerised instrumentation; distributed control system; liquid level; measurement; multiplexer; pulse power supply; steel rope float type apparatus; step motor; tank top gauge; Circuits; Computer industry; Construction industry; Distributed control; Electricity supply industry; Mechanical variables measurement; Multiplexing; Pulsed power supplies; Steel; Umbilical cable;
Conference_Titel :
Industrial Electronics, 1992., Proceedings of the IEEE International Symposium on
Conference_Location :
Xian
Print_ISBN :
0-7803-0042-4
DOI :
10.1109/ISIE.1992.279594
