Omnidirectional ultrasonic transducer

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

367174, 181175, H04R 1700, G10K 1118

Patent

active

051857286

ABSTRACT:
An ultrasonic transducer is described that comprises an oscillatory element (e.g., piezoelectric or electrostatic) having a frequency of oscillation in the ultrasonic region. The transducer includes a conical diaphragm connected at its apex to the center of the oscillatory element. The diaphragm has a rim which defines a concave opening and is responsive to an actuation of the oscillatory element to generate a plane wave in the direction of the concave opening. A faceplate having a small aperture abuts the rim of the conical diaphragm. The diaphragm is concentrically positioned with respect to the aperture and is bonded to the faceplate by a flexible adhesive. An induced plane wave is thereby diffracted by the aperturre and exits therefrom with a substantially omnidirectional beam pattern.

REFERENCES:
patent: 3206558 (1965-09-01), Shoot
patent: 3675053 (1972-07-01), Mifune et al.
patent: 3722840 (1973-03-01), Yamada
patent: 3749854 (1973-07-01), Mifune et al.
patent: 4228379 (1980-10-01), Guscott et al.
patent: 4278851 (1981-07-01), Takaya
patent: 4283649 (1981-08-01), Heinouchi
patent: 4456848 (1984-06-01), Yasuda et al.
patent: 4456849 (1984-06-01), Takayama et al.
patent: 4486868 (1984-12-01), Kodera et al.
patent: 4600851 (1986-07-01), Isayama et al.
patent: 4602245 (1986-07-01), Yang et al.
patent: 4607186 (1986-08-01), Takayama et al.
patent: 4891843 (1990-01-01), Paulus, Jr. et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Omnidirectional ultrasonic transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Omnidirectional ultrasonic transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Omnidirectional ultrasonic transducer will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-329036

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.