Geometrical instruments – Distance measuring – Scale reading position sensor
Patent
1998-03-17
2000-08-29
Hirshfeld, Andrew H.
Geometrical instruments
Distance measuring
Scale reading position sensor
33655, 33710, 68 231, B26D 728
Patent
active
061089257
ABSTRACT:
A length measurement system for measuring the relative position of two objects in a given measuring direction comprises a scale carrier which carries a measurement scale and which is fastened to a first of the two objects and a scanning head which scans the measurement scale at a scanning location and is fastened to the second of the two objects. The scale carrier is constructed so as to be stiff in the longitudinal direction but can deflect in a springing manner vertical to the measuring direction and is fastened by only one of its ends to the first object, while its other end projects freely. The scale carrier is positively guided in the region of the scanning head.
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Dr. Johannes Heidenhain GmbH
Hirshfeld Andrew H.
Smith R A
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