Measurement digitizer

Details Measurement digitizer Measurement digitizer

1988-12-22

1990-08-07

Haroian, Harry N.

Geometrical instruments

Distance measuring

By flexible tape

33 1MP, 33 1PT, G01B 312

Patent

active

049456504

ABSTRACT:
A new drive system bidirectionally "interconverts" (directs and receives in equal amounts) linear and rotary motions permitting precision linear measuring over long distances. The "convex" surface of coilable rack 30 interlocks with rotatable coupling 262 attached to encoder 32 digitizing electrical signals computer converted to precision linear measurements. Coupling rotations cause perforations in the rack to tightly engage sprockets 304. Many such engagements assure positive motion interconversions thus repeatability of precision linear measurements synchronized with the international standard of length. A second encoder 82 may be used to digitize lateral rotations of the above permitting precision polar or Cartesian coordinate measurements produced over large surfaces.

REFERENCES:
patent: 1237808 (1917-08-01), Ottinger
patent: 2824374 (1958-02-01), Abrams et al.
patent: 3561125 (1971-02-01), Zeider
patent: 4186490 (1980-02-01), Quenot

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