EP0327486A2
Expired / Lapsed
EP
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Focal sonic or ultrasonic radiator to apply to high-intensity fluids
Assignee: Consejo Superior de Investigaciones Científicas
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Filing: 1989-02-03
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Granted: —
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Expires: 2009-02-03
Abstract
Abstract The object of the present patent application is a new type of radiator for sonic and/or ultrasonic frequencies consisting basically of a plate which has discontinuous profiles on both surfaces and which vibrates flexurally on excitation by a vibrator that may be piezoelectric, magnetostrictive, etc. in nature. The dual discontinuous profiles enable regulation of the amplitude and phase of the energy radiated, thereby achieving a high concentration of energy around a predetermined point.
Inventors
- 👤 Gallego J.A. Juárez
- 👤 Rodr Guez G. Instituto De Ac Stica Corral
- 👤 San Emeterio J.L. Prieto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 10:59
CPC Classifications
B; B06; B06B; B06B3/00; B06B3/04; G; G10; G10K; G10K13/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
1) "A FOCALIZED SONIC OR ULTRASONIC RADIATOR FOR HIGH-INTENSITY APPLICATIONS IN FLUIDS", charaterized in that it consists of a plate of any shape (circular, rectangular) which is discontinuously variable in thickness and which, excited by a mechanical or electromechanical vibrator, vibrates flexurally in one of its modes.
Claim 2
Dependent Claim
47 words
1) "A FOCALIZED SONIC OR ULTRASONIC RADIATOR FOR HIGH-INTENSITY APPLICATIONS IN FLUIDS", charaterized in that it consists of a plate of any shape (circular, rectangular) which is discontinuously variable in thickness and which, excited by a mechanical or electromechanical vibrator, vibrates flexurally in one of its modes.
Claim 3
Dependent Claim
81 words
2) A sonic or ultrasonic radiator in accordance with claim 1, further characterized in that the profile of the radiant surface of the plate is variable in thickness in the different internodal zones. The profile is designed so that the radiation emitted by each and every internodal zone follows a path such that it reaches a predetermined point (focus) in the field in the vecinity of the radiator in phase, thereby resulting in a high concentration of energy at the focus.
Claim 4
Dependent Claim
122 words
3) A sonic or ultrasonic radiator in accordance with the preceding claims, further characterized in that the back surface of the plate is designed such that varying the thickness of the different internodal zones on the plate modifies the balance of mass, so as to regulate the distribution of the amplitudes of vibration and, in consequence, the acoustic field in the focal zone and the power capacity of the radiator. In the specific case in which a uniform distribution of amplitudes is required, the thicknesses decrease from the central zone of excitation outwards to the periphery; such uniform distribution augments the power capacity of the radiator, since the power capacity is essentially dependent upon maximum displacement attainable without breakage of the plate.
Claim 5
Dependent Claim
45 words
4) A sonic or ultrasonic radiator in accordance with the preceding claims, further characterized in that it is made of metal that is homogeneous and regular in structure, devoid of pores, with good elastic properties, low internal friction losses, and a high tolerance to fatigue.
Claim 6
Dependent Claim
44 words
5) A sonic or ultrasonic radiator in accordance with the preceding claims, further characterized in that the structure of the material of which it is made is such that the direction of the fibre coincides with that of the stresses caused by the deformations.
References Cited (Backward Citations)
No citation records indexed.
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