Transducer

The transducer (figs 1 & 2) is provided with a Bolt-clamped Langevin-type (BLT) oscillator (20, fig 1 and fig 3) and a broad band matching circuit (10, fig 2). In the oscillator a peak frequency fp corresponding to a peak transmission sensitivity pp may separate from a centre frequency fc within...

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Bibliographische Detailangaben
Hauptverfasser:	Yasushi Miki, Masaaki Tadokoro, Eiji Murakami
Format:	Patent
Sprache:	eng
Schlagworte:	FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The transducer (figs 1 & 2) is provided with a Bolt-clamped Langevin-type (BLT) oscillator (20, fig 1 and fig 3) and a broad band matching circuit (10, fig 2). In the oscillator a peak frequency fp corresponding to a peak transmission sensitivity pp may separate from a centre frequency fc within a given bandwidth, and a transmission sensitivity SE may increase as a frequency f separates from the peak frequency fp with respect to the centre frequency fc. The broadband matching circuit performs an impedance matching such that the transmission sensitivity SE of the oscillator at the peak frequency fp becomes substantially equal to the transmission sensitivity SE of the oscillator 20 at the centre frequency fc. A second form of the broadband impedance matching circuit is discussed (fig 7).