Accession Number : ADD011523

Title :   Phanton Computer Gating System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dexter,F A

Report Date : 17 Jul 1984

Pagination or Media Count : 6

Abstract : A system for gating a computer to receive navigational information from the position sensors of the periscope assembly of a submarine is disclosed. A first coil is connected as the load coil of an oscillator and is mounted in a stationary position on a submarine bulkhead. A second coil is secured to the periscope assembly and moves up and down with the periscope, in and out of magnetic coupling with the first coil. A third coil is secured to the periscope assembly and moves up and down with the periscope assembly. A fourth coil is secured to the rotatable periscope assembly and remains magnetically coupled to the third coil while the periscope is either rotated or moved up and down. A normally opened switch button on the periscope handle is electrically connected to the fourth coil. Depression of the switch button results in a load on the oscillator which is otherwise normally tuned to the same frequency as a second oscillator. Loading of the first oscillator coil causes the first oscillator to operate at a different frequency from the second oscillator.

Descriptors :   *Patents, *Data links, *Gates(Circuits), *Magnetic circuits, *Navigation computers, Submarines, Periscopes, Navigational aids, Coupling(Interaction), Magnet coils, Oscillators, Bulkheads, Stationary, Assembly, Push buttons, Switches

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE