Smart optical rotation speed transducer

P. Kuzas, V. Augutis

Journal of Vibroengineering, Vol. 12, Issue 2, 2010, p. 161-169.
Received 11 December 2009; accepted 7 June 2010; published 30 June 2010

Copyright © 2010 Vibroengineering This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Abstract. This paper presents a transducer that was designed for rotation speed measurement of water meter impeller during verification procedure of counting mechanisms. In many cases, particularly when wet type water meters are verified, the impeller is obstructed by dregs, rust, etc. and therefore is hardly visible. When using filtration both in spatial and frequency domains, steady and reliable measurements are obtained. Both theoretical and experimental results are presented in this paper. In this research work transfer function of smart rotational speed measurement transducer is shown and various modes of input parameters are modeled. The reliability of the transducer output signal and its response to optical disturbances are modeled and real signals from transducer prototype are given

Keywords: rotation speed, measurement, smart transducers, spatial filters.