Acoustic ranging systems

Details Acoustic ranging systems Acoustic ranging systems

1991-02-20

1992-01-07

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Returned signal used for control

367 99, G01S 1500

Patent

active

050797514

ABSTRACT:
In an acoustic pulse-echo ranging system, the transmitter and receiver, which respectively generate pulses of acoustic energy and receive reflections of the same, are electronically tuned to determine their operating frequency, the electronic tuning being controlled responsive to stored data relating to a particular transducer being utilized to transmit and receive a pulse. A single transmitter and receiver can be utilized to service a number of different transducers, being automatically tuned to an appropriate frequency for each transducer as it is used to transmit and receive a pulse. The system can verify the nominal operating frequency of each transducer, and can also adjust the operating frequency used with any particular transducer to optimize its performance.

REFERENCES:
patent: 2960678 (1960-11-01), Beard
patent: 3116472 (1963-12-01), Rich
patent: 4199246 (1980-04-01), Muggli
patent: 4439846 (1984-03-01), Rodriguez
patent: 4596144 (1986-06-01), Panton et al.
patent: 4700569 (1987-10-01), Michalski et al.
patent: 4831565 (1989-05-01), Woodward
patent: 4890266 (1989-12-01), Woodward
patent: 4992998 (1991-02-01), Woodward

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