Accession Number : ADA293792

Title :   Large Area Smart Piezoelectric and Pyroelectric Sensors.

Descriptive Note : Interim rept. no. 8,

Corporate Author : UNIVERSITY COLL OF NORTH WALES BANGOR SCHOOL OF ELECTRONIC ENGINEERING AND CO MPUTER SYSTEMS

Personal Author(s) : Das-Gupta, D. K. ; Wenger, M. P.

PDF Url : ADA293792

Report Date : APR 1995

Pagination or Media Count : 11

Abstract : In the seventh interim report an account was provided of the embedment of a composite transducer within a reinforced epoxy laminate structure for use as an in-situ acoustic emission (AE) sensor, strain gauge or ultrasonic detector/transmitter for NDT techniques. The present report is concerned with the further investigation of the suitability of these composite materials as both surface mounted and embedded AE sensors. Particular attention has been focused on the detection on acoustic waves in structures which possess plate-like geometry where the propagation of acoustic waves are constrained to definite modes. (AN)

Descriptors :   *ACOUSTIC EMISSIONS, *ACOUSTIC DETECTORS, *PIEZOELECTRIC TRANSDUCERS, ACOUSTIC WAVES, CERAMIC MATRIX COMPOSITES, ULTRASONICS, WAVE PROPAGATION, EPOXY LAMINATES, STRAIN GAGES, PYROELECTRICITY, GREAT BRITAIN, ELECTROACOUSTIC TRANSDUCERS, ACOUSTIC IMPEDANCE, FIBER REINFORCEMENT.

Subject Categories : Acoustic Detection and Detectors
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE