Helmet metal mass compensation for helmet-mounted sighting syste

Details Helmet metal mass compensation for helmet-mounted sighting syste Helmet metal mass compensation for helmet-mounted sighting syste

1981-02-12

1983-07-26

Blum, Theodore M.

Ordnance

Mounts

Training mechanisms

324260, 324225, F41G 900, G01R 3302

Patent

active

043948316

ABSTRACT:
An electromagnetic system for determining the orientation including position of a helmet worn by a pilot is disclosed having a transmitting antenna for transmitting electromagnetic field vectors, a receiving antenna for sensing the electromagnetic field vectors generated by the transmitting antenna, and a control apparatus responsive to the sensed electromagnetic field vectors and the transmitted electromagnetic field vectors for determining the compensated orientation of the helmet, the compensated orientation relying upon the rotation matrix determined by a previous solution for the orientation of the helmet.

REFERENCES:
patent: 2824304 (1958-02-01), Dorsett
patent: 3432751 (1969-03-01), Godby et al.
patent: 4017858 (1977-04-01), Kuipers
patent: 4054881 (1977-10-01), Raab
patent: 4146196 (1979-03-01), Schultz
patent: 4287809 (1981-09-01), Egli et al.

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