Parametric transducer systems and related methods
First Claim
Patent Images
1. A parametric signal emitting system, comprising:
- a signal processing system that generates an ultrasonic carrier signal having an audio signal modulated thereon;
an amplifier, operable to amplify the carrier signal having the audio signal modulated thereon;
an emitter, capable of emitting into a fluid medium the carrier signal having the audio signal modulated thereon; and
a pot core transformer, operatively coupled between the amplifier and the emitter;
whereina secondary winding of the pot core transformer and the emitter are arranged in a parallel resonant circuit.
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Abstract
A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter.
24 Citations
20 Claims
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1. A parametric signal emitting system, comprising:
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a signal processing system that generates an ultrasonic carrier signal having an audio signal modulated thereon; an amplifier, operable to amplify the carrier signal having the audio signal modulated thereon; an emitter, capable of emitting into a fluid medium the carrier signal having the audio signal modulated thereon; and a pot core transformer, operatively coupled between the amplifier and the emitter;
whereina secondary winding of the pot core transformer and the emitter are arranged in a parallel resonant circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising:
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determining a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; determining an optimal physical size of a pot core to contain windings of the transformer, the pot core having an air gap formed in an inner wall thereof with the windings of the transformer circumscribing the inner wall; and selecting a size of the air gap of the pot core containing the transformer windings to enable use of a pot core having the determined optimal physical size while avoiding saturation of the transformer during operation of the parametric emitter system. - View Dependent Claims (9, 10)
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11. A method of optimizing performance of an amplifier-emitter pair, comprising:
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selecting a pot core to contain and shield a step-up transformer electrically coupled between an amplifier and an emitter, the pot core including an air gap formed in an inner wall thereof; selecting a level of inductance of a secondary winding of the step-up transformer such that electrical resonance can be achieved between the secondary winding and the emitter; and adjusting a size of the air gap of the pot core to decrease an overall physical size of the pot core transformer while avoiding saturation of the transformer during operation of the amplifier-emitter pair. - View Dependent Claims (12, 13)
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14. A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising:
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selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification