bimorph cell

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bimorph cell

[′bī‚mȯrf ¦sel]
(electronics)
Two piezoelectric plates cemented together in such a way that an applied voltage causes one to expand and the other to contract so that the cell bends in proportion to the applied voltage; conversely, applied pressure generates double the voltage of a single cell; used in phonograph pickups and microphones.
References in periodicals archive ?
As a consequence, the bimorph bends to relieve some of this strain, allowing one layer to stretch out longer than the other.
The change in one of the components of the bimorph puts a strain on the whole structure, which in turn is countered by the other component stretching out to accommodate it.
Moreover--and perhaps one of the most fanciful parts of the design--the fabrication techniques allow actuators to be made into multiple shapes, from bimorphs to a comb-like structure (Fig.
2005, "Design and fabrication of a novel bimorph micro-opto-mechanical sensor," J.
The bimorph is available in a range of sizes from 15 to 45mm in length, and two to 15mm in width.
1--The body of the transducer, made by a case from dielectric material which allows the assemblage of the bimorph elements and of the electrodes, adequate connected.
The bimorph idea was simplified in "heatuators," developed at the Air Force Institute of Technology, which used only one material but obtained bimetallic behavior by having one part heat up while another part remained cold.
The micro-cantilever is capable of bending by way of bimorph actuation, resulting in a controlled vertical displacement.
Two or more monomorphs can be incorporated into one sensor to form a bimorph or multimorph respectively.
Actuators currently made from piezoceramics employ a bimorph structure, Thakoor says.
Mandelis, "Optical Power Monitor Using a Thin-Film Pyroelectric Bimorph," Rev.
A finite element model of self-resonating bimorph microcantilever for fast temperature cycling in a pyroelectric energy harvester Salwa Mostafa