Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-01-02
1977-03-22
Corcoran, Robert J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
331266, 235 92DN, 23515132, 335153, 335207, 340347P, G01R 3312
Patent
active
040139441
ABSTRACT:
A pressure insensitive counter for a towed array deployed underwater provs accurate readings of the deployment of the array from a winch. Several magnets are carried on the side of a fairlead sheeve to actuate associated reed switches as the magnets pass by them. The reed switches are oriented with respect to one another to provide binary coded decimal (BCD) signals which are fed to an electronic counter circuit carried inside of a pressurized hull. Mounting the reed switches inside of fluid filled conduits assures that the BCD signals are generated reliably. The electronic counter circuit assures a positive indication of how much of the array has been deployed.
REFERENCES:
patent: 3122735 (1964-02-01), Townsend
patent: 3268887 (1966-08-01), Sullivan
patent: 3558861 (1971-01-01), Collins
patent: 3838518 (1974-10-01), Hendrickson
Benya John A.
McGuffey Gale W.
Corcoran Robert J.
Johnston Ervin F.
Keough Thomas Glenn
Sciascia Richard S.
The United States of America as represented by the Secretary of
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