TIMING RULER OR TIMING DISK
A timing device, such a s a timing disk or a timing ruler is provided with a carrier having at least one code track of a group and overlapping therewith and at least on e code marking, which is scanned by a sensor unit to produce signals. The code track or trac ks have a different optical density in...
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Format: | Patent |
Sprache: | eng ; fre |
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