Enclosed power transmission system with a sensor positioned within the enclosure and an antenna assigned to the sensor
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United States of America Patent
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Aug 29, 2000
Grant Date -
N/A
app pub date -
Feb 25, 1999
filing date -
Feb 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Sensors positioned in power transmission systems with tubular enclosures have radio interrogation capabilities. The radio antenna assigned to a sensor is a planar antenna with a radiating element and a conductive baseplate, with the radiating element being designed as a reed that is provided in a self-supporting manner in a recess in the baseplate and is short-circuited to the baseplate at one end. This forms a quarter-wave antenna which can be tuned by using a metal resonating member with a U-shaped cross-section and can be combined with a surface-wave sensor.
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