Electro-acoustic transducer with horn and reflector
First Claim
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1. An improved electrical-acoustical transducer and horn arrangement comprising:
- a. an electrical-acoustical transducer having a vibratory surface thereof and having a characteristic whereby electrical/acoustical transduction is accomplished relatively more efficiently over a limited segment of area of the vibratory surface than over other areas of the surface;
b. said transducer adapted to vibrate said surface at an ultrasonic frequency (fc) responsive to an electrical signal applied thereto and to generate an electrical signal at a frequency (fc) responsive to acoustical energy incident on said surface;
c. an elongated conically shaped horn body having a first aperture thereof;
d. means positioning said vibratory surface adjacent said first aperture; and
e. acoustical coupling means positioned within the horn body for coupling acoustical energy between the horn and the limited segment area of the vibratory surface and including reflective means having a focal point in the limited segment area.
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Abstract
An electrical-acoustical ultrasonic transducer horn arrangement for operating in a transmit or receive mode at a predetermined frequency (fc) is described. The transducer horn arrangement includes a horn and an acoustical coupling means positioned within the horn for coupling acoustical energy between the horn and a limited area of a vibratory surface of the transducer.
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Citations
12 Claims
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1. An improved electrical-acoustical transducer and horn arrangement comprising:
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a. an electrical-acoustical transducer having a vibratory surface thereof and having a characteristic whereby electrical/acoustical transduction is accomplished relatively more efficiently over a limited segment of area of the vibratory surface than over other areas of the surface; b. said transducer adapted to vibrate said surface at an ultrasonic frequency (fc) responsive to an electrical signal applied thereto and to generate an electrical signal at a frequency (fc) responsive to acoustical energy incident on said surface; c. an elongated conically shaped horn body having a first aperture thereof; d. means positioning said vibratory surface adjacent said first aperture; and
e. acoustical coupling means positioned within the horn body for coupling acoustical energy between the horn and the limited segment area of the vibratory surface and including reflective means having a focal point in the limited segment area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification