Akustisk transducer med reduceret parasitkapacitans og fremgansmåde af samme

An acoustical transducer including a case and a support member, diaphragm, and backplate located within the case. The diaphragm is connected to the support member and is capable of vibrating. The backplate is mounted to the support member and is spaced a distance from the diaphragm to provide a gap...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	COLLINS, JAMES, STEVEN
Format:	Patent
Sprache:	dan
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	An acoustical transducer including a case and a support member, diaphragm, and backplate located within the case. The diaphragm is connected to the support member and is capable of vibrating. The backplate is mounted to the support member and is spaced a distance from the diaphragm to provide a gap between the backplate and the diaphragm. An electret material on the backplate cooperates with the diaphragm to develop a signal which is transmitted to an amplifier. By having an assembly wherein the backplate does not contact the diaphragm, the capacitance of the assembly is reduced.