Position measuring device

Details Position measuring device Position measuring device

2006-03-21

2006-03-21

Fulton, Christopher W. (Department: 2859)

Geometrical instruments

Distance measuring

Scale reading position sensor

Reexamination Certificate

active

07013575

ABSTRACT:
A position measuring device including a code having a first code element and a second code element arranged one behind the other in a measuring direction, wherein each of the first and second code elements includes a first partial area and a second partial area, which are complementary to each other and are arranged sequentially in the measuring direction. A scanning device including a plurality of detector elements that scan the first and second code elements and for forming a first scanning signal within the first partial area of the first code element and a second scanning signal within the second partial area of the first code element. An evaluation unit including a comparison device, which compares the first scanning signal with the second scanning signal and forms binary information for the first code element as a function of the comparison.

REFERENCES:
patent: 4631519 (1986-12-01), Johnston
patent: 4786891 (1988-11-01), Ueda et al.
patent: 4799798 (1989-01-01), Erb
patent: 5287630 (1994-02-01), Geisler
patent: 5434602 (1995-07-01), Kaburagi et al.
patent: 6600308 (2003-07-01), Shirai et al.
patent: 6742275 (2004-06-01), Mayer et al.
patent: 2004/0216320 (2004-11-01), Birrer et al.
patent: 2 126 444 (1984-03-01), None
patent: WO 02/01160 (2002-01-01), None
Stevenson, J.T.M. et al. “Absolute Position Measurement Using Optical Detection of Coded Patterns,” Journal of Physics E/Scientific Instruments, vol. 21, No. 12, 1988, pp. 1140-1145.

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