Liquidmembrane coupling response of submersible electrostatic acoustic transducer
Abstract
A mathematical model of the liquidmembrane coupling response of the submersible electrostatic acoustic transducer (ESAT) [Rev. Sci. Instrum. 50, 31 (1979)] is presented. The model predicts that the ESAT responds to an incident ultrasonic wave of frequency ω and a constant displacement amplitude ξ_{0} with an output that is proportional to 2ξ_{0}[1+(σω/Z)^{2}]^{}^{1}^{/}^{2}, where σ is the membrane areal density and Z is the acoustic impedance of the immersion fluid. Measurements taken over the frequency range from 1 to 11 MHz are in good agreement with the model.
 Publication:

Review of Scientific Instruments
 Pub Date:
 March 1989
 DOI:
 10.1063/1.1140404
 Bibcode:
 1989RScI...60..487C
 Keywords:

 Electroacoustic Transducers;
 Electrostatics;
 Membranes;
 Equations Of Motion;
 Frequency Response;
 High Frequencies;
 Mathematical Models;
 Ultrasonic Wave Transducers;
 Instrumentation and Photography