Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1981-05-18
1984-03-20
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367165, 367168, 310 26, H04B 1700, H04R 1700
Patent
active
044385099
ABSTRACT:
A rod of magnetostrictive material has its ends placed between steel bars which provide compression on the rod by tensioning wires connected between the bars. Preferably, the wires are equally spaced along the bars from the rod so that when the wires are equally tensioned the rod is under no bending stress. The tension of the wires (and from this value, the compression of the rod) is conveniently determined by the freqency of vibration of the wires using known physical relationships between these quantities.
REFERENCES:
patent: 1525823 (1925-02-01), Nicolson
patent: 3778758 (1973-12-01), Carson
patent: 3930912 (1960-03-01), Miller
patent: 4223428 (1980-09-01), Holloway
patent: 4326275 (1982-04-01), Butler
Butler John L.
Clark Arthur E.
Egan Thomas R.
Rodberg Kenneth
Moskowitz Nelson
Pannone Joseph D.
Raytheon Company
Santa Martin M.
Sharkansky Richard M.
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