Patent References 3651243 Implantable pressure transducer Cable assembly having shielded conductor Cable assembly having shielded conductor and method and apparatus for terminating same Plural conductor communication wire Wide band inductive transdermal power and data link Wiring layout for use in constructing new homes Flexible multi-parameter cable Signal cable of a video endoscope provided with a solid state image pick-up device Electrically active resonant structures for wireless monitoring and control InventorsAssigneeApplicationNo. 11479527 filed on 06/30/2006US Classes:324/654, Using inductive type measurement607/60, Telemetry or communications circuits128/903, RADIO TELEMETRY343/867Plural; plural or tapped coilsExaminersPrimary: Dole, Timothy J.Attorney, Agent or FirmForeign Patent References
International ClassesG01R 27/28H01Q 21/00 A61N 1/00 AbstractA coupling loop or antenna is provided that can be used with a system that determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The coupling loop includes multiple loops. Preferably two tuned loops are used for transmitting the energizing signal to the sensor and an un-tuned loop is used for receiving the sensor signal from the sensor. Orientation features on the housing for the coupling loop and the sensor are provided to assist in positioning the coupling loop relative to the sensor to maximize the coupling between the sensor signal and the coupling loop.Field of SearchUsing inductive type measurement | |