Apparatus and method for tuning a broad bandwidth transducer arr

Details Apparatus and method for tuning a broad bandwidth transducer arr Apparatus and method for tuning a broad bandwidth transducer arr

1973-10-19

1976-09-14

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 26, 318116, 318118, H01L 4108

Patent

active

039809056

ABSTRACT:
A fixed electrical network, in conjunction with an amplifier having varia output impedance, is used to provide each of the transducer elements of an array with a reactance which acts as a large shunt reactance when the amplifier acts as a constant current source, but which acts as a smaller series reactance when the amplifier acts as a constant voltage source. Consequently, the usable bandwidth of the array is greatly increased, without degrading its performance.

REFERENCES:
patent: 1587098 (1926-06-01), Whittle
patent: 2872578 (1959-02-01), Kaplan et al.
patent: 3129366 (1964-04-01), Fry
patent: 3315102 (1967-04-01), Quint et al.
patent: 3432691 (1969-03-01), Shoh
patent: 3489930 (1970-01-01), Shoh
patent: 3526792 (1970-09-01), Shoh
patent: 3609415 (1971-09-01), Kawada
patent: 3679918 (1972-07-01), Keizi
patent: 3681626 (1972-08-01), Puskas

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