Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1978-12-22
1980-07-22
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
73116, 356154, G01D 534
Patent
active
042141567
ABSTRACT:
Apparatus for measuring rocket motor thrust components and resolving small ector alignment errors. Apparatus includes a spherical air bearing which embodies gyrodynamic principles in order to provide three degrees of angular freedom and in order to achieve stiff, vibration free reactions against translational movement. Effects of thrust misalignment are seen as changes in angular rate which can be measured by encoding rotations of the floated rocket motor inner bearing assembly by use of built-in sensors and/or by motion with an external optical tracker.
REFERENCES:
patent: 3137531 (1964-06-01), Herrmann et al.
Andrews Jere L.
Farrell John W.
Bellamy Werten F. W.
Gapcynski William G.
Hilton Harold W.
Hostetter Darwin R.
Nelms David C.
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