Abstract
Novel smart membrane valve which functionality is based on optical interference effects caused by moiré interferometry is proposed in this paper. The membrane is comprised from two steel gratings. Geometrical adjustment between adjacent holes in both membranes results in zero flow rate through the valve when no control signal is activated. Rotation of the control membrane generates moiré interference effects which are exploited for flow control. Relationships between the shape and geometric locations of the moiré circles and the control parameters of the second membrane are determined what helps to implement optimal valve control strategies
About this article
Received
May 10, 2007
Accepted
June 15, 2007
Published
June 30, 2007
Keywords
Moiré interferometry
flow control
piezoelectric ceramics
Copyright © 2007 Vibroengineering
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