Ultrasonic wave sensor

The invention discloses an ultrasonic wave sensor, which comprises a shell, a base arranged at the bottom part of the shell, a composite vibrator packaged in the shell, and a lead end connected with the composite vibrator, wherein a sealing cap is arranged on the shell; the composite vibrator compri...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHONG MIAOMIAO
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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