The Microsensor Technology Using to Identify the Initiation Time of Impact Induced Elastic Waves

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 期刊論文 > Item 987654321/45676

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题名:	The Microsensor Technology Using to Identify the Initiation Time of Impact Induced Elastic Waves
作者:	楊龍杰;Yang, Lung-jieh;Wu,Tsung-tsong;Kang,Shung-wen
贡献者:	淡江大學機械與機電工程學系
关键词:	Transient Elastic Wave;Impact Initiation;Microsensor
日期:	2002-10-01
上传时间:	2010-03-26 19:43:51 (UTC+8)
出版者:	淡江大學
摘要:	The microsensor technology was used here to identify the initiation time of an impact shock. The shock excitation caused by an impact sphere with a diameter of 4-6 minimeters could generate transient elastic waves in concrete structures. Such elastic waves with frequency above 100 kHz are the active emission sources for defect detection in the non-destructive testing (NDT) of concrete using transient elastic waves. In this paper, an impact sphere, which was packaged with a piezoresistive microsensor, was fabricated to verify this new idea. The microsensor after packaging has the maximum output voltage of 100 mV and the rise time less than 5 microsecond subjected to a sphere impact. The promising result of the initiation time experiment showed that the calibrated (short circuit) signal was left behind the microsensor signal for 40 nanoseconds.
關聯:	淡江理工學刊=Tamkang journal of science and engineering 5(3), pp.121-127
DOI:	10.6180/jase.2002.5.3.01
显示于类别:	[機械與機電工程學系暨研究所] 期刊論文

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