Title :
Digital optical microphone and digital transducer
Author :
Ghelmansarai, F.A.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol.
fDate :
4/1/1995 12:00:00 AM
Abstract :
The design of a new digital microphone using an optical technique is described. An interdigital photoconductive detector is explained and a new optical scanner is designed for this microphone. The important parameters for developing a digital microphone are presented, followed by the required modifications to obtain a digital transducer for the measurement of very small angles, displacements or pressure
Keywords :
interdigital transducers; microphones; optical scanners; photoconducting devices; diaphragm displacement; digital optical microphone; digital transducer; interdigital photoconductive detector; optical scanner;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:19951758
