Mounting structure for magnetic linear scale unit

Details Mounting structure for magnetic linear scale unit Mounting structure for magnetic linear scale unit

1987-08-18

1989-07-04

Cuchlinski, Jr., William A.

Geometrical instruments

Distance measuring

Scale reading position sensor

33700, 33702, G01B 714, G01B 1104

Patent

active

048437298

ABSTRACT:
A magnetic linear scale unit comprises a magnetic scale and mounting blocks which are designed to be rigidly fixed to one of relatively displaceable mechanical components, about which magnitude or stroke of the relative thrusting displacement is to be measured. The magnetic scale has end sections to be mounted on the mounting blocks. The end sections have round peripheral portion mating with the mounting block. At least one of the end section also includes a structural component which allows pivotal movement of the magnetic scale relative to the mounting block for fine adjustment of the axis of the magnetic scale relative to the axis of relative movement of the mechanical components. A scale channel is free from the mounting block and simply serves as the magnetic shield. Therefore, the scale channel of the invention is substantially free from the accuracy requirement and production error of the scale channel and will never affect measurement of the displacement magnitude.

REFERENCES:
patent: 3975100 (1976-08-01), Taylor
patent: 4198757 (1980-04-01), Nelle et al.
patent: 4320578 (1982-03-01), Ernst
patent: 4530157 (1985-07-01), Nelle
patent: 4549354 (1985-10-01), Affa et al.
patent: 4649648 (1987-03-01), Nagaoka et al.

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