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Proceedings Paper

Valve torque measuring device based on strain gauge
Author(s): Qi-rong Zhu; Fan Ni; Guo-biao Yang; Bin Li
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Paper Abstract

Start-stop torque is one of the key parameters of valve's capacity. In China, a torque spanner is used to measure the small-bore torque, but the accuracy is not very high. In the large-bore situation, the previous method can not be used to measure the torque, so the torque is determined by the design calculation result. Sometimes this result is far from the practical one, and the difference will impact the apolegamy of the actuating device of a valve. Some other methods, such as inductance type transducer valve torque sensor, strain gauge valve torque sensor, appeared. They both have the advantage of high accuracy, but their automatic level is low and their measuring equipments are complex. In this paper, a new style torque measuring device which is based on theory of mechanics of materials and measuring principle of strain gauge is designed. The maximal torque is 2000Nm. The measuring device is easy for installation, accurate on results, and is able to meet the actually online measuring demands.

Paper Details

Date Published: 28 December 2010
PDF: 7 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75441T (28 December 2010); doi: 10.1117/12.885230
Show Author Affiliations
Qi-rong Zhu, Tongji Univ. (China)
Fan Ni, Tongji Univ. (China)
Guo-biao Yang, Tongji Univ. (China)
Bin Li, Tongji Univ. (China)


Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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