Dimension measuring instrument

Details Dimension measuring instrument Dimension measuring instrument

1984-04-09

1985-03-19

Little, Willis

Geometrical instruments

Area integrators

Electrical

33174L, G01B 322

Patent

active

045050422

ABSTRACT:
This invention concerns a dimension measuring instrument comprising an encoder for converting a displacement of a spindle into an electric signal and an analogue indication device for electrically indicating a measured value, which has been obtained through processing of an output from the encoder, by a pattern including a scale or scales, a pointer and the like. The analogue indication device is provided with a scale indicating circuit for continuously indicating two or more scales different in scale interval from each other and a pointer indicating circuit for driving the pointer in accordance with the measured value and depending on the scale interval for the indication, and a range of dimension indication is expanded without deteriorating the reading accuracy within a predetermined range of dimension indication.

REFERENCES:
patent: 3471934 (1969-10-01), Miller et al.
patent: 3482323 (1969-12-01), Hamel et al.
patent: 3768169 (1973-10-01), Ito
patent: 4289382 (1981-09-01), Clark

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