Intelligent well lid exciter

The intelligent well lid exciter is used for being arranged in a communication cable well, the intelligent well lid exciter comprises an upper shell, a bottom shell, a main control board, a power supply battery and a loudspeaker, the upper shell is provided with a mounting cavity with an opening in...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIAN XIANSHAN, CAI JUN, ZHANG JINBIAO, LI YINGLE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEAF-AID SETS DETECTING MASSES OR OBJECTS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GEOPHYSICS GRAVITATIONAL MEASUREMENTS LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS TESTING
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