A General Theory of Passive Linear Electroacoustic Transducers and the Electroacoustic Reciprocity Theorem. I

Autor: Leslie L. Foldy, Henry Primakoff
Rok vydání: 1945
Předmět:
Zdroj: The Journal of the Acoustical Society of America. 17:109-120
ISSN: 0001-4966
DOI: 10.1121/1.1916305
Popis: A theory of the operation of passive linear electroacoustic transducers is developed on the basis of the most general linear equations (in this case, integral equations) relating the pressure and normal velocity at each point on the transducer surface and the voltage and current at the transducer's electrical terminals. These, together with the appropriate solutions of the wave equation expressed through the use of Green's functions for the medium in which the transducer is immersed and the equations defining the electrical termination of the transducer, completely characterize the behavior of the transducer and allow explicit calculation of such quantities as impedances, responses, etc., in terms of four parameters entering the fundamental equations.On the basis of this theory, a proof of the reciprocity theorem for electroacoustic transducers relating their speaker and microphone responses is presented embodying the conditions necessary for its validity. These conditions are essentially the existence of...
Databáze: OpenAIRE