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Convention Paper

A Preliminary SPICE Model to Calculate the Radiation Impedance of a Baffled Circular Piston

Authors: Porter, Scott; Thompson, Stephen

AES Convention 127 · Paper 7844 · October 2009

Abstract

Acoustic systems often use circular pistons to radiate sound into fluid media. Mathematically, the solution to the radiation impedance of a baffled circular piston is well known. Implementing the exact solution in circuit analysis packages, such as SPICE, however, can be difficult because many commercial packages do not include Bessel and Struve functions. A SPICE subcircuit is presented that calculates the radiation impedance for all frequencies to a good approximation.

Details

Published in
AES Convention 127
AES Convention
127
Paper number
7844
Publication date
October 6, 2009
Session subject
Transducer Modeling and Design
Affiliation
Applied Research Laboratory, The Pennsylvania State University, State College, PA, USA (See document for exact affiliation information.)
Type
Convention Paper