Hall effect type sensing device and a magnetic circuit device for a Hall effect type sensor

摘要

A Hall effect type sensor comprises a magnet (45) and a magnetic flux guide (42a, 42b) which cooperate to form a magnetic circuit and a Hall IC (41) disposed in the magnetic circuit. These elements are fixed to a frame (40) through holding members (40A, 40B, 43, 44) so that the magnetic flux guide and the Hall IC are placed at correct positions on the frame.