Communications – electrical: acoustic wave systems and devices – Plural transmitters to receiver or transmitter to plural...
Patent
1980-07-16
1982-01-26
Farley, Richard A.
Communications, electrical: acoustic wave systems and devices
Plural transmitters to receiver or transmitter to plural...
273372, 367127, 367906, G01S 518, F41J 506
Patent
active
043131824
ABSTRACT:
In a target equipment in which transducers are provided to detect the pressure wave generated by a projectile the transducers being connected to a timing and calculating device adapted to calculate from the time delays between the instants of reception of the pressure wave the trajectory of the projectile, a signal transmitter, comprising a spark generator, is used to transmit sonic signals which are detected by the transducers. The signal transmitter can be used to indicate the precise location or shape of the target and this information is stored in the computer memory.
REFERENCES:
patent: 3176263 (1965-03-01), Douglas
patent: 3445808 (1969-05-01), Johnson
patent: 3821469 (1974-06-01), Whetstone et al.
Bowyer William H.
Curtis Anthony T.
Knight Lindsay C.
Phillips Robert B.
Australasian Training Aids (Pty.) Ltd.
Farley Richard A.
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