Contactless rotational speed measurement arrangement utilizing radically aligned rotating magnets
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United States of America Patent
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-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Oct 6, 1994
filing date -
Apr 8, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Measuring arrangement for contactless measurement of rotational speed. The measuring arrangement operates using a stationary pulse wire sensor (5) which is activated by the magnetic fields of several revolving, radially aligned magnets (4). The rotational speed of a component (3a) arranged on a shaft (3) is detected by each pulse being triggered in the pulse wire sensor (5) by two opposite poles (N, S) lying at an axial distance to each other. The measuring arrangement provides reliable measurements irrespective of the rotational speed, in particular in the lower measuring range.
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