Device for detecting differences in angular positions of two sha

Details Device for detecting differences in angular positions of two sha Device for detecting differences in angular positions of two sha

1975-10-31

1978-02-21

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Comparison to a fixed standard, master or reference speed...

G01P 308

Patent

active

040745791

ABSTRACT:
A device for detecting the difference in the rotary speeds of two rotating shafts comprises a bearing for coaxially mounting the shafts for rotation in opposite directions, a low power precision stepping motor imparting a programmed speed of rotation to one of the shafts, a gearing interconnecting the shafts and displaceable in response to a change in the relative angular position of the two rotation shafts, and a sensor detecting displacement of the gearing in response to the change.

REFERENCES:
patent: 1709673 (1929-04-01), Kintzing
patent: 1749569 (1930-03-01), Florez
patent: 2779582 (1957-01-01), Hopper et al.
patent: 2935311 (1960-05-01), Kabelitz
patent: 3139006 (1964-06-01), Budzich
patent: 3683685 (1972-08-01), Viegelahn
patent: 3769533 (1973-10-01), Pauwels

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