The Microsensor Technology Using to Identify the Initiation Time of Impact Induced Elastic Waves
學年 91
學期 1
出版(發表)日期 2002-10-01
作品名稱 The Microsensor Technology Using to Identify the Initiation Time of Impact Induced Elastic Waves
作品名稱(其他語言)
著者 楊龍杰; Yang, Lung-jieh; Wu,Tsung-tsong; Kang,Shung-wen
單位 淡江大學機械與機電工程學系
出版者 淡江大學
著錄名稱、卷期、頁數 淡江理工學刊=Tamkang journal of science and engineering 5(3), pp.121-127
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.
關鍵字
語言 en
ISSN 1560-6686
期刊性質 國內
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產學合作
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國別 TWN
公開徵稿
出版型式 ,電子版
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