EFFECT OF ACTIVE DIAMETER AND DAMPING ON THE PERFORMANCE OF ULTRASONIC TRANSDUCERS

被引：1

作者：

PATEL, ND ^{[1
]}

NICHOLSON, PS ^{[1
]}

机构：

[1] MCMASTER UNIV,DEPT MAT SCI & ENGN,CERAM ENGN RES GRP,HAMILTON L8S 4L7,ONTARIO,CANADA

来源：

ULTRASONICS | 1994年 / 32卷 / 02期

关键词：

TRANSDUCERS; DAMPING; TRANSDUCER PERFORMANCE;

D O I：

10.1016/0041-624X(94)90017-5

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Ultrasonic transducers (12-45 MHz) with reproducible performance were made using lead metaniobate (LMN) compositions. The signal strength and pulse shape were studied as a function of the active diameter at different frequencies (damped and undamped). A tungsten epoxy composite backing of acoustic impedance 16.5 x 10(6) Ns m-3 was developed to obtain moderate bandwidth with high signal sensitivity. The resultant signals are compared with those predicted by a simple model.

引用

页码：99 / 106

页数：8

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