THE PRODUCTION OF ACOUSTIC IMPULSES IN AIR

被引：9

作者：

MARSHALL, I

机构：

[1] Dept. of Med. Phys. and Med. Eng., R. Infirmary, Edinburgh

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1990年 / 1卷 / 05期

关键词：

D O I：

10.1088/0957-0233/1/5/007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An inverse filtering approach is used to calculate the drive waveforms required by various transducers to produce short-duration pressure pulses in air. A systematic comparison is made between 'wide range' and 'tweeter' loudspeakers, a piezoelectric device, and an electromagnetic earpiece. In addition, a 'step' method is described and used with the latter two transducers. This technique represents a simple means of producing a pressure pulse (theoretically) equal in duration to half the natural period of a resonant transducer.

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页码：413 / 418

页数：6

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