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Study on the Dynamic Response Characteristics of Impact Force Sensors Based on the Strain Gage Measurement Principle  

Ahn, Jung-Lyang (전북대학교 자원.에너지공학과)
Kim, Seung-Kon (전북대학교 자원.에너지공학과)
Sung, Nak-Hoon (한국지질자원연구원)
Song, Young-Soo (전북대학교 자원.에너지공학과)
Cho, Sang-Ho (전북대학교 자원.에너지공학과)
Publication Information
Explosives and Blasting / v.29, no.1, 2011 , pp. 41-47 More about this Journal
Abstract
In order to estimate blast damage zone and control rock fragmentation in blasting, it is important to obtain information regarding blast hole pressure. In this study, drop impact tests of acrylic, aluminium, steel sensors were performed to investigate the dynamic response characterizations of the sensors through the strain signals. As a result, the strain signals obtained from the steel sensors showed less sensitivity to impact force level and experienced small changes with various length of the sensors. The steel sensors were applied to measure the impact force of an electric detonator.
Keywords
Impact force sensor; Dynamic strain measurement; Ball drop impact test;
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