Object levitating apparatus and method for controlling the same
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsMasaki Takasan, Yoshikazu Koike, Sadayuki Ueha
Life of this patent
Estimating the term…
Abstract
A method of controlling an object levitating apparatus is disclosed. The levitating apparatus levitates an object on a plurality of vibrating bodies with air pressure generated from sound waves produced by the vibrating bodies. Each vibrating body is vibrated by a corresponding vibrating apparatus. Each vibrating apparatus has an oscillator and a transducer. The transducer is actuated by the oscillator to vibrate the corresponding vibrating body. The method includes determining impedance of each transducer, and controlling each oscillator in accordance with the determined impedance to restrict displacement of the levitated object.
Claims17
A method of controlling, an object levitating apparatus for levitating an object on a plurality of vibrating bodies with air pressure generated from sound waves produced by the vibrating bodies, wherein each vibrating body is vibrated by a corresponding vibrating apparatus, and each vibrating apparatus has an oscillator and a transducer, the transducer being actuated by the oscillator to vibrate the corresponding vibrating body, the method including:
- determining impedance of each transducer;
- and
- controlling each oscillator in accordance with the determined impedance to restrict displacement of the levitated object.
A method of controlling, an object levitating apparatus for levitating an object on a plurality of vibrating bodies with air pressure generated from sound waves produced by the vibrating bodies, wherein each vibrating body is vibrated by a corresponding vibrating apparatus, and each vibrating apparatus has an oscillator and a transducer, the transducer being actuated by the oscillator to vibrate the corresponding vibrating body, the method including:
- determining impedance of each transducer;
- and
- controlling the position of each vibrating body in accordance with the determined impedance to restrict displacement of the levitating object.
The method according to clam 5, wherein the step of controlling the position of the each vibrating body includes controlling the position of each vibrating body in a vertical direction.
A levitating apparatus for levitating an object on a plurality of vibrating bodies with air pressure generated from sound waves produced by the vibrating bodies, the apparatus comprising:
- a vibrating apparatus for vibrating each vibrating body, wherein each vibrating apparatus has an oscillator and a transducer, the transducer being actuated by the oscillator to vibrate the corresponding vibrating body;
- a detector for detecting the impedance of the transducer;
- and
- a controller for controlling each oscillator in accordance with the impedance detected by the detector to restrict displacement of the levitating object.
An apparatus for levitating an object on a plurality of vibrating bodies with air pressure generated by sound waves produced by the vibrating bodies, the apparatus comprising:
- a vibrating apparatus for vibrating each vibrating body, wherein each vibrating apparatus has an oscillator and a transducer, the transducer being actuated by the oscillator to vibrate the corresponding vibrating body;
- an elevating means for raising or lowering the vibrating bodies;
- a detector for detecting the impedance of the transducer;
- and
- a controller for controlling the elevating means to change the position of each vibrating body in accordance with the impedance detected by the detector.
Dependencies are inferred from the claim text.