Electronic measuring tape

Details Electronic measuring tape Electronic measuring tape

1977-10-11

1979-08-21

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

250237G, G01B 310

Patent

active

041648161

ABSTRACT:
A device for electronically indicating the measured distance between two points. A flexible tape retained in coiled fashion in a housing is extended therefrom between the two points to be measured. A Moire interference pattern is produced by movement of the tape having a first screen located thereon; the first screen moves below a second screen mounted in the housing. The Moire interference pattern is opto-electrically read and the length measured is digitally displayed.

REFERENCES:
patent: 2886717 (1959-05-01), Williamson et al.
patent: 2948890 (1960-08-01), Barth et al.
patent: 3658429 (1972-04-01), Zipin
patent: 3674372 (1972-07-01), Weyrauch
patent: 3816002 (1974-06-01), Wieg
patent: 4031360 (1977-06-01), Soule

Affiliated with

Also associated with

Rating

Electronic measuring tape does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic measuring tape, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic measuring tape will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1318406