Radio scanning system using acoustical surface waves (SW radio s

Details Radio scanning system using acoustical surface waves (SW radio s Radio scanning system using acoustical surface waves (SW radio s

1996-11-07

1999-06-08

Holloway, III, Edwin C.

Communications: electrical

Continuously variable indicating

With meter reading

34082531, 340539, H04Q 700

Patent

active

059107790

ABSTRACT:
A radio scanning system using acoustical surface waves (SW radio scanning system) includes a transceiver unit and sensor elements defining at least one parameter to be scanned. The transceiver unit has a transmitter transmitting question signals to the sensor elements and a receiver receiving and evaluating answer signals transmitted back by the sensor elements. The transmitter and the sensor elements are constructed in such a way that the question signals and the answer signals are chronologically inverse to one another. The sensor elements have different SW transit times.

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patent: 5241923 (1993-09-01), Janning

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