Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1996-05-02
1998-03-24
Dombroske, George M.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
73714, 73756, G01M 1500
Patent
active
057315167
ABSTRACT:
A pneumatic tire monitoring system is disclosed which provides a pressure sensor/transponder unit for each pneumatic tire of a vehicle to monitor tire pressure. A coded signal transmitted from each transponder unit is received by a multi-purpose receiver which may provide information to the vehicle operator or to other vehicle systems and subsystems. Each transponder unit is characterized by ultra low power consumption to extend the useful battery life. The transponder units may be mounted within the vehicle tires, or externally mounted. Impedance matching circuitry allows the use of the wheel rims with the transmitting antenna so as to avoid doppler shift induced by the rotating antenna and frequency drift induced by capacitive coupling.
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Handfield Michael
Laliberte Helene
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