A simple and inexpensive startle transducer with high output

A piezoelectric film material laminated to a sheet of flexible Plexiglas shows promise as a simple, high-performance startle transducer. It is an improvement over many other startle transducers because of its high output, insensitivity to vibrational and electrical artifacts, simplicity of instrumentation, and modest cost. Although discussed in terms of its application to measurement of the startle response, the material has potential for use in many situations that require a movement transducer.