Temperature compensated piezoelectric buzzer

A buzzer includes a piezoelectric diaphragm and a housing enclosing the diaphragm and defining a resonating chamber. The chamber includes a sound port and has an optimal resonating frequency fHt at a temperature T defined by fHt=(vt/2 )(√(A/voL)) were vt is the velocity of sound waves in air at a te...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PHILLIPS MICHAEL H, LAUTZENHISER FRANS, GROSSMAN FREDRIC BERNARD, JANARDHANAM RAMESH
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ORDER TELEGRAPHS PHYSICS PUBLIC ADDRESS SYSTEMS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!