Patent ID: 7852067
Filing Date: 2010-12-14
Classification: G01D

Abstract:
1. Sensor for monitoring a part which can move translationally relative to the sensor with reference to a position on an axis of motion, comprising: a magnet which is oriented in a direction of motion with respect to a north and south pole and which is configured to be located on a movable part; three reed contacts which are aligned in parallel and of which the first and the second reed contacts are located in one plane and parallel next to one another with their lengthwise axes, the first and second reed contacts being positioned for actuation at approximately a same time by a magnetic field of the magnet when located on the movable part, and the third reed contact being located at a distance to the plane of the first and the second reed contacts; and wherein the sensor is provided with a shield located at one end of a lengthwise direction of the reed contacts and aligned perpendicular to the lengthwise direction of the reed contacts.