CONTACTLESS POWER AND DATA TRANSMISSION APPARATUS
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus for an imaging system are provided. The imaging system includes a gantry having a stationary member coupled to a rotating member. The rotating member has an opened area proximate an axis about which the rotating member rotates. An x-ray source provided on the rotating member. An x-ray detector may be disposed on the rotating member and configured to receive x-rays from the x-ray source. A rotary transformer having circumferentially disposed primary and secondary windings may form part of a contactless power transfer system that rotates the rotatable portion of the gantry at very high speeds, the primary winding being disposed on the stationary member and the secondary winding being disposed on the rotating member.
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Citations
27 Claims
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1-3. -3. (canceled)
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11. (canceled)
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14-16. -16. (canceled)
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21. An apparatus for transmitting power and data, said apparatus comprising:
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a rotary transformer having first and second transformer portions relatively rotatable around a common axis and separated from one another by a gap; differential windings on the first and second transformer portions, the differential windings configured to transfer power between the first and second transformer portions across the gap; a first data transmitter and a first data receiver on the first transformer portion; and a second data transmitter and a second data receiver on the second transformer portion, the first data transmitter communicating data to the second data receiver and the second data transmitter communicating data to the first data receiver across the gap, wherein at least one of the first and second data transmitters comprise a stripline transmission line. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 22, 23)
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24. A computed tomography (CT) imaging system comprising:
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a stationary gantry portion including a differential winding, a data transmitter and a data receiver; a rotatable gantry portion separated from the stationary gantry portion by a gap and configured to rotate about an axis relative to the stationary gantry portion, the rotatable gantry portion including a differential winding configured to communicate power with the differential winding of the stationary gantry portion across the gap, a data transmitter configured to transmit data to the data receiver of the stationary gantry portion across the gap, and a data receiver configured to receive data from the data transmitter of the stationary gantry portion across the gap; and a radiation source and detector joined to the rotatable gantry portion and disposed opposite one another to image a target positioned between the radiation source and detector, wherein at least one of the data transmitters is configured to transmit data across the gap in a direction transverse to the axis. - View Dependent Claims (12, 13, 25, 26)
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27. A wind turbine comprising:
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a rotor joined to at least one blade, the rotor rotatably coupled to the generator by a shaft; and a transformer comprising a rotatable portion connected with the shaft and a stationary portion, the rotatable and stationary portions separated from one another by a gap, each of the rotatable and stationary portions comprising transformer windings, a data transmitter and a data receiver, wherein the transformer windings communicate power across the gap in a contactless manner and the data transmitters and data receivers communicate data across the gap in different directions. - View Dependent Claims (17, 18, 19, 20)
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Specification