| 摘要 |
A Hall effect measuring device under the hood of a motor vehicle, includes: a housing, a Hall effect sensor, including a holed magnet and a chip arranged at the Gaussian zero point of the magnet, and a ferromagnetic target including a measurement surface, in which the chip is securely attached to the magnet, and defines a measurement plane, the sensor and the ferromagnetic target are able to be imparted with a relative motion with respect to one another, the sensor is positioned in the housing and configured to measure the value of the magnetic field of the magnet, vertically in line with the chip, on a measurement axis perpendicular to the measurement plane, wherein the sensor is linear, the device includes a reference position corresponding to a given relative position of the chip and the target, the relative motion is with two degrees of freedom, each of which respectively corresponds to a translational motion or to a rotational motion, the device is configured to detect a deviation from the reference position, the shape and/or the dimension of the target according to a relative motion is different respectively from the shape and/or the dimension of the target according to the other relative motion.
|
