Automatic knocking detection device, system and method for cavity behind tunnel vault wall

The invention provides an automatic knocking detection device, system and method for a cavity behind a tunnel vault wall, and belongs to the technical field of tunnel detection. The rotating motor is fixedly connected with the top end of the telescopic arm, the output end of the rotating motor is co...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIANG JIALEI, CHEN XIN, LI RUI, GUO SHAOXUAN, LIU YANYI, YAN JUNLONG, HE YUEJI, FENG XUANYUE, ZHANG QINGSONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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