Incremental encoder with a pressure button function

摘要

Incremental optical encoder, with an operating head (1), the rotatably about an axis x on the front plate (3) of a switch box (4) is mounted, a fixedly to the operating button (1), which is connected to the shaft (13), a on the shaft (13) covering attached (20), which is coaxial with the axis of rotation x perimeter edging (22), in the recesses (40) alternately with opaque parts (41) are incorporated, two optical forks (42, 43), the so as to engage on the throughput path of the recesses (40) and arranged at an angle are offset in such a way that about. + -.π / 2 in accordance with the direction of rotation of the operating button (1) electrical signals which are phase-shifted (s1, s2) are delivered, means for processing of the electrical signals (s1, s2), by the angle of rotation and the direction of rotation of the said operating button (1) to bring in experience, and means for the direction of rotation of the pre-positioning of the operating button (1), wherein the perimeter edging (22) to the operating button (1) of the hole, and the operating button (1) in addition to the front plate (3) is mounted such that it is..