Device improved selection of a reference mark on a measuring decoder incremental lengths. (Machine-translation by Google Translate, not legally binding)

摘要

An improved device for selecting a reference mark in an increment measuring decoder of the type comprising a graduated measuring rule (3) with a series of reference marks (4) drawn on the graduated scale (3) a predetermined intervals with respect to the graduations (5) of the rule (3) and a reading head (6) with means for generating a reference signal when the reading head (6) coincides with one of the reference marks (4 "' ') selected, characterized in that, includes a magnet (7) housed and fixed in a non-magnetic metallic magnet holder (8) whose assembly thus formed is mounted on each application, in the appropriate cavity of a series of cavities ( 9, 10, ...) identical and equidistant from each other, practiced in a support profile (11) of plastic material, housed with the possibility of sliding in a longitudinal slot (13) of the housing (14) to allow in each application to vary in situ the position of the magnet (7) so that it is associated with the appropriate reference mark (4 "'') selected. (Machine-translation by Google Translate, not legally binding)