Digitized distance measuring device

Details Digitized distance measuring device Digitized distance measuring device

1978-09-19

1980-08-12

Little, Willis

Geometrical instruments

Area integrators

Electrical

33147N, 33 27C, 33158, G01B 702

Patent

active

042165849

ABSTRACT:
The present invention relates to a distance measuring device which may be utilized as a caliper/scale to measure or mark distances without the use of an incremented linear object. A resistive strip is attached along a beam. Two reference devices are also attached to the beam, one of the reference devices being slidably attached. The resistance of the resistive strip between the reference devices is related to the distance between the reference devices. This distance is displayed on a digital readout attached to the distance measuring device. Means are provided for displaying the distance in any one of a number of units, and for scaling the distance. In the preferred embodiment, the beam is glass and the readout device is embedded in the glass.

REFERENCES:
patent: 1404794 (1922-01-01), Reitenbaugh
patent: 2886892 (1959-05-01), Banfill
patent: 3276131 (1966-10-01), Hahn
patent: 4037325 (1977-07-01), Weber et al.
patent: 4063362 (1977-12-01), Amsbury

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