Linear scale measuring device

Details Linear scale measuring device Linear scale measuring device

1987-05-13

1988-12-13

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356375, 356374, H01J 314

Patent

active

047912898

ABSTRACT:
A linear scale measuring device capable of minimizing an error in measuring which occurs due to vibration and/or shock, carrying out the mounting on a machine tool or the like at a sufficient degree of freedom and being efficiently assembled. The device includes a slider having an index scale arranged opposite to a main scale and adapted to be moved in relation to the main scale and a stationary link to which the slider is securely connected. The slider is connected to the stationary link at two positions defined along a movement direction of the slider by an elastic connection means comprising a coil spring and a wire spring which act to force the slider toward the main scale.

REFERENCES:
patent: 3531650 (1970-09-01), Cronin
patent: 4060903 (1977-12-01), Ernst

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