DESIGN OF MICRO-HAMMERS FOR ULTRASONIC SOURCE APPLICATIONS

被引：3

作者：

CHETWYND, DG ^{[1
]}

SACHSE, W ^{[1
]}

机构：

[1] CORNELL UNIV,DEPT THEORET & APPL MECH,ITHACA,NY 14853

来源：

ULTRASONICS | 1991年 / 29卷 / 01期

基金：

美国国家科学基金会;

关键词：

ULTRASONIC SOURCES; BROAD-BAND SOURCES; IMPACT;

D O I：

10.1016/0041-624X(91)90176-9

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A 'micro-hammer' is proposed as convenient, repeatable broad-band ultrasonic source for point source/point receiver applications. Its operation provides a short force pulse on a surface similar to that of the impact of a free particle. The theoretical basis of that concept is discussed and two prototype designs described. Evaluation of prototypes with hammer heads of around 1 mg mass demonstrates that signals of practical usefulness can be obtained from low cost devices. Some discussion of the application of such devices to routine practice is given.

引用

页码：68 / 75

页数：8

共 14 条

[1] PROPAGATION OF ELASTIC PULSES AND ACOUSTIC-EMISSION IN A PLATE .1. THEORY
CERANOGLU, AN
PAO, YH
[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1981, 48 (01): : 125 - 132
[2] CHETWYND DG, 1989, IN PRESS REV SCI INS
[3] Goldsmith W., 1960, IMPACT
[4] HSIEH PN, 1989, ULTRASONICS INT 89 C, P388
[5] Hsu NN, 1978, ELASTWAVESNONDESTRUC, V29, P85
[6] HSU NN, 1985, NBSIR853234 NAT BUR
[7] JONES MP, 1989, ULTRASONICS INT 89 C, P319
[8] MINIATURIZED CAPACITIVE TRANSDUCER FOR DETECTION OF BROAD-BAND ULTRASONIC DISPLACEMENT SIGNALS
KIM, KY
NIU, L
CASTAGNEDE, B
SACHSE, W
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (08) : 2785 - 2788
[9] SELF-ALIGNING CAPACITIVE TRANSDUCER FOR THE DETECTION OF BROAD-BAND ULTRASONIC DISPLACEMENT SIGNALS
KIM, KY
SACHSE, W
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1986, 57 (02) : 264 - 267
[10] MICHAELS JE, 1981, MATER EVAL, V39, P1032

← 1 2 →