发明申请
US20030178990A1 Magnetic type position and / or speed sensor 失效
磁性位置和/或速度传感器

Magnetic type position and / or speed sensor
摘要:
The invention relates to a position and/or speed sensor comprising: a mobile target (2) a first permanent magnet (5) at least a second permanent magnet (11) and a probe (4) sensitive to the direction and intensity of a magnetic induction, and placed along the OZ axis such that when there is no tooth, the magnetic induction created by the first magnet passes through the probe along a direction opposite to the direction of magnetization. Magnetic inductions created by the permanent magnets (5, 11) have approximately equal values but in the opposite direction and in the presence of a tooth the absolute value of the variation of the magnetic induction detected by the probe (4) is at least greater than a trip threshold.
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