Cartridge force and bias adjustment gage

Details Cartridge force and bias adjustment gage Cartridge force and bias adjustment gage

1980-04-28

1982-11-30

Stephan, Steven L.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

33180R, H04N 576, G11B 300, G11B 1700

Patent

active

043618839

ABSTRACT:
An apparatus for aiding in the final orientation of a video disc stylus assembly within the stylus cartridge. A fixture is arranged for receiving and securing cartridge assemblies in precise spatial relation to successive assemblies. A cantilever secured in fixed spatial relation to the cartridge has its free distal end arranged to engage the stylus assembly, which engagement produces deflections in the cantilever relative to the position of the stylus assembly with respect to the cartridge. Electro-mechanical transducers, coupled to the cantilever, measure and indicate minute deflections therein. The stylus position is then altered manually or by controlled mechanical means in accordance with the measured deflection in the cantilevers.

REFERENCES:
patent: 2478223 (1949-08-01), Argabrite
patent: 4176378 (1979-11-01), Toda et al.
R. D. Douglas, Semiconductor and Conventional Strain Gages, Academic Press, N.Y., 1962 pp. 329-333 & 339.
Gulton Industries Bulletin H200a, Piezoelectric Ceramic Transducers, 1964.

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