Accession Number:

ADA073818

Title:

Transient Response Optimization of Piezoelectric Disc Transducers by Time Domain Techniques.

Descriptive Note:

Technical memo.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

1979-07-23

Pagination or Media Count:

252.0

Abstract:

The goals of this research have been to find and demonstrate design procedures for reducing the mechanical ringing of piezoelectric disc transducers under impulsive electrical excitation. The transducer has been treated as a three-port device the two mechanical ports and one electrical port. Improvements to the transient response have been sought through the determination of appropriate matching networks at the ports. The optimization of specified time domain characteristics is accomplished by performing a gradient search over a parameter space defining the port matching configurations. It is assumed that only one mechanical port radiates into the acoustic medium. The transducer and mechanical matching sections are modeled using the Mason equivalent circuit and the distributed parameter wave guide model, respectively. Transformation to the time domain is achieved using a numerical approximation to the Laplace transform.

Subject Categories:

  • Acoustics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE