Communications – electrical: acoustic wave systems and devices – Transmitter systems – With beam forming – shaping – steering – or scanning
Patent
1993-01-19
1994-03-29
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Transmitter systems
With beam forming, shaping, steering, or scanning
367158, G10K 1300, B06B 102, B06B 304
Patent
active
052991750
ABSTRACT:
New electroacoustic unit for efficient generation of high sonic and ultrasonic intensities in gas media and in interphases (gas-solid, gas-liquid.) Said unit is comprised of an electromechanical transducer system of which the radiating element is a plate (3) having a discontinuous profile and an electronic device for the controlled generation of the electric power signal. The unit is capable of generating acoustic fields of very high intensity with a predetermined configuration. Particularly it is capable of generating with a same transducer system two distinct configurations of the acoustic field. Prototypes for generating directional and focused fields have been developed.
REFERENCES:
patent: 4779243 (1988-10-01), West
patent: 4868445 (1989-09-01), Wand
patent: 5050137 (1991-09-01), Sato et al.
"Transductor piezoelectrico para la generacion de ultrasonidos en el aire" J. A. Gallego Juarez & G. Rodriguez Corral in Revista de Acustica, vol. IV, No. 1-2; 1973; pp. 35-37.
"Ultrasonic Generators for Low and High-Power Applications in Gases"; 1981 G. Rodriguez et al. in Ultrasonics International 1981.
"An Ultrasonic transducer for high power applications in gases" J. A. Gallego Juarez et al in Ultrasonics, IPC Business Press; Nov. 1978; pp. 267-272.
"Ultrasonics International 89 Conference Proceedings", 1989; pp 250-256 G. Rodriguez et al.
Ultrasonics International 85, London Jul. 2-4, 1985, Conference Proceedings, G. Rodriquez et al: "High Power Ultrasonic Equipment for Industrial Defoaming":, pp. 506-511.
Ultrasonics International 87, London Jul. 6-9, 1987, Conference Proceedings, G. Rodriguez-Corral et al.: "Focused High-Power Ultrasonic Transducer With Stepped-Plate Radiator for Industrial Applications in Gases", pp. 794-799.
Corral German Rodriguez
Gallego-Juarez Juan A.
Montoya Vitini Fausto
San Emetero Prieto Jose L.
Consejo Superior de Investigaciones Cientificas
Pihulic Daniel T.
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