Optical position measuring instrument

Details Optical position measuring instrument Optical position measuring instrument

2008-07-29

2008-07-29

Fulton, Christopher W (Department: 2859)

Geometrical instruments

Distance measuring

Scale reading position sensor

Reexamination Certificate

active

07404259

ABSTRACT:
A position measuring instrument for detecting a relative position, the position measuring instrument including a scale having a measuring graduation extending in a measuring direction and a scanning unit that can be moved in the measuring direction in relation to the scale so as to generate a resultant scanning signal, wherein the scanning unit has a scanning graduation arranged on a side of the scanning unit. Either the measuring graduation or the scanning graduation includes graduation areas located periodically in the measuring direction, the graduation areas extend perpendicular to the measuring direction along an extension direction, and the graduation areas, along the extension direction, have differentiable contour shapes, which are dimensioned such that unwanted harmonic components can be eliminated from the resultant scanning signal by way of them.

REFERENCES:
patent: 4799798 (1989-01-01), Erb
patent: 4991125 (1991-02-01), Ichikawa
patent: 5237391 (1993-08-01), Huggins
patent: 5456020 (1995-10-01), Kellner
patent: 6178653 (2001-01-01), Griffith et al.
patent: 0 547 270 (1995-05-01), None

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2742487