Rod type extensometer for measuring distance change of two horizontal points of reservoir dam

The invention provides a rod type extensometer for measuring the distance change of two horizontal points of a reservoir dam, and the extensometer comprises a measurement end, a fixed end, a suspension spring suspension device, a base line, a calibration device, a sensor, and an electrical unit, one...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GENG LIXIA, ZHANG XING, CHANG KUNHAO, LI NONGFA, YU JIANFENG, ZHAO YIFEI, CHEN ZHIGAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
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