Development of smart membrane valve based on geometric moiré interferometry

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 strategie

Development of smart membrane valve based on geometric moiré interferometry

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 strategie