Support device controlled in dependence on the movement of a hel

Details Support device controlled in dependence on the movement of a hel Support device controlled in dependence on the movement of a hel

1987-09-11

1988-12-20

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356152, G01V 904

Patent

active

047926970

ABSTRACT:
The optical and electronic equipment normally carried by an aircraft pilot's helmet is carried by a support element which is placed at a distance from the helmet and accordingly relieves the load on the pilot's head. The support element is maintained in a predetermined position location with respect to the helmet by means of a detection assembly, a computer for determining errors in positioning, a control circuit which generates signals corresponding to these errors, and a set of jacks controlled by the error signals for modifying the position of the support element with respect to the aircraft structure and cancelling the positioning errors.

REFERENCES:
patent: 4028725 (1977-06-01), Lewis
patent: 4475814 (1984-10-01), Marche
patent: 4684249 (1987-08-01), Ellis
patent: 4722601 (1988-02-01), McFarlane
Proceedings of SID, vol. 19, No. 4, 1978, pp. 181-185. Los Angeles, U.S.; L. Russo: "Helmet mounted visually coupled systems" FIGS. 2, 3; page 183, Col. 1, 1. 10-19.

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