Sensor system and method
First Claim
1. A sensor system comprising:
- one or more rotor antennas on a shaft that moves within a stator bracket one or more of around an axis of the sensor system or along the axis of the sensor system, the one or more rotor antennas are configured to communicate sensed data with one or more stator antennas on the stator bracket, each rotor antenna having a rotor signal trace disposed on an outer rotor side of a dielectric substrate of the rotor antenna and a rotor return trace disposed on the outer rotor side of the dielectric substrate, wherein the rotor signal trace and the rotor return trace are not concentric with respect to each other,wherein the one or more rotor antennas are configured to extend one or more of radially around an outer surface of the shaft of a sensor or along the outer surface of the shaft of the sensor; and
wherein the one or more rotor antennas are one or more differential line rotor antennas and the one or more stator antennas are one or more differential line stator antennas, wherein the one or more differential line rotor antennas configured to communicate sensed data with the one or more differential line stator antennas reduces cross-talk relative to one or more microstrip rotor antennas configured to communicate sensed data with one or more microstrip stator antennas.
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Accused Products
Abstract
A sensor system includes one or more rotor antennas on a shaft that moves within a stator bracket one or more of around an axis of the sensor system or along the axis of the sensor system, the one or more rotor antennas configured to communicate sensed data with one or more stator antennas on the stator bracket. Each rotor antenna has a rotor signal trace disposed on an outer rotor side of a dielectric substrate of the rotor antenna and a rotor return trace disposed on the outer rotor side of the dielectric substrate, wherein the rotor signal trace and the rotor return trace are not concentric with respect to each other. The one or more rotor antennas are configured to extend one or more of radially around an outer surface of the shaft of a sensor or along the outer surface of the shaft of the sensor.
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Citations
17 Claims
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1. A sensor system comprising:
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one or more rotor antennas on a shaft that moves within a stator bracket one or more of around an axis of the sensor system or along the axis of the sensor system, the one or more rotor antennas are configured to communicate sensed data with one or more stator antennas on the stator bracket, each rotor antenna having a rotor signal trace disposed on an outer rotor side of a dielectric substrate of the rotor antenna and a rotor return trace disposed on the outer rotor side of the dielectric substrate, wherein the rotor signal trace and the rotor return trace are not concentric with respect to each other, wherein the one or more rotor antennas are configured to extend one or more of radially around an outer surface of the shaft of a sensor or along the outer surface of the shaft of the sensor; and wherein the one or more rotor antennas are one or more differential line rotor antennas and the one or more stator antennas are one or more differential line stator antennas, wherein the one or more differential line rotor antennas configured to communicate sensed data with the one or more differential line stator antennas reduces cross-talk relative to one or more microstrip rotor antennas configured to communicate sensed data with one or more microstrip stator antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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extending one or more rotor antennas on a shaft that moves within a stator bracket one or more of around an axis of a sensor system or along the axis of the sensor system, the one or more rotor antennas extending one or more of radially around an outer surface of the shaft of a sensor or along the outer surface of the shaft of the sensor; and communicating sensed data of the one or more rotor antennas with one or more stator antennas on the stator bracket, each rotor antenna having a rotor signal trace disposed on an outer rotor side of a dielectric substrate of the rotor antenna and a rotor return trace disposed on the outer rotor side of the dielectric substrate, wherein the rotor signal trace and the rotor return trace are not concentric with respect to each other; wherein the one or more rotor antennas are one or more differential line rotor antennas and the one or more stator antennas are one or more differential line stator antennas, wherein the one or more differential line rotor antennas configured to communicate sensed data with the one or more differential line stator antennas reduces cross-talk relative to one or more microstrip rotor antennas configured to communicate sensed data with one or more microstrip stator antennas. - View Dependent Claims (13, 14, 15, 16)
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17. A sensor system comprising:
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one or more rotor antennas on a shaft that moves within a stator bracket one or more of around an axis of the sensor system or along the axis of the sensor system, the one or more rotor antennas configured to communicate sensed data with one or more stator antennas on the stator bracket, each rotor antenna having a rotor signal trace disposed on an outer rotor side of a dielectric substrate of the rotor antenna and a rotor return trace disposed on the outer rotor side of the dielectric substrate, wherein the rotor signal trace and the rotor return trace are not concentric with respect to each other, wherein the one or more rotor antennas are configured to extend one or more of radially around an outer surface of the shaft of a sensor or along the outer surface of the shaft of the sensor, wherein the stator bracket is configured to extend one or more of about the axis of the sensor system or in a direction along the axis of the sensor system, the stator bracket comprising the one or more stator antennas, each stator antenna having a stator signal trace disposed on a first side of a stator dielectric substrate and a stator return trace disposed on the first side of the stator dielectric substrate, wherein one or more of the one or more stator antennas is configured to electrically couple with one or more of the one or more rotor antennas; and wherein a first stator antenna of the one or more stator antennas is configured to electrically couple with a first rotor antenna of the one or more rotor antennas, and a second stator antenna of the one or more stator antennas is configured to electrically couple with a second rotor antenna of the one or more rotor antennas, wherein the first stator antenna and the first rotor antenna are configured to communicate the sensed data using a first channel, and the second stator antenna and the second rotor antenna are configured to communicate the sensed data using a different, second channel.
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Specification