Measuring system for wheel parameters and measuring detector for such a system
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United States of America Patent
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-
Apr 4, 2006
Grant Date -
Dec 19, 2002
app pub date -
Dec 5, 2001
filing date -
Dec 5, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Measuring system for measuring at least one parameter indicative of the state of the tires of a vehicle, which comprises on each wheel a detector (12) having a parameter sensor (13) and an antenna (15) tuned to a defined frequency, and which comprises a central data processing unit (24) coupled by individual wire links (22) to fixed antennas that are installed near the wheels equipped with sensors. Each parameter sensor comprises a transponder associated with a capacitor to store the power from the associated fixed antenna. At least one of the fixed and mobile antennas is configured in such a way that the link with the other antenna corresponding to the same wheel is substantially independent of the angular position of the wheel.
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