ULTRASONIC OSCILLATOR

In an ultrasonic oscillator which comprises an ultrasonic vibrator (6) for driving an ultrasonic vibrator horn of an ultrasonic atomizer, a balanced circuit (3, 4, 5) in which the ultrasonic vibrator (6) is connected so that a balanced condition is established with respect to the damped capacity of...

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Bibliographische Detailangaben
Hauptverfasser:	ENDOH, MASAMI, TANAKA, YASUHISA, TAKEZI, HIROYUKI, YONEDA, MAKOTO
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY NOZZLES PERFORMING OPERATIONS PUBLIC ADDRESS SYSTEMS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	In an ultrasonic oscillator which comprises an ultrasonic vibrator (6) for driving an ultrasonic vibrator horn of an ultrasonic atomizer, a balanced circuit (3, 4, 5) in which the ultrasonic vibrator (6) is connected so that a balanced condition is established with respect to the damped capacity of the ultrasonic vibrator, and amplifier means (1) for sending a signal to the balanced circuit and which includes a feedback circuit (8, 9) for positively feeding back the signal output from the balanced circuit, the feedback circuit is connected to means (18) for adjusting the feedback quantity so that, when the ultrasonic oscillator starts the oscillation, the signal feedback quantity output from the balanced circuit is adjusted to make the gain of the amplifier means much greater than 1, and when the oscillator is in the steadily oscillating condition, the signal feedback quantity output from the balanced circuit is adjusted to broaden the allowable frequency band width of the ultrasonic vibrator.