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.
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.
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
A finite element model of self-resonating bimorph
microcantilever for fast temperature cycling in a pyroelectric energy harvester Salwa Mostafa