Electric circuit for revolution counter, has sensor element including closed inner and outer strips forming successive resistors that form successive half bridges, where half bridges of groups are connected with supply voltage in group-wise

摘要

The circuit has a sensor element (10) in which change of magnetization is caused and stored when a magnetic field is moved at the sensor element. The sensor element has closed inner and outer strips (11, 12) forming successive resistors (a-x). The resistors form successive half bridges in pair-wise. A connection point is present between the two resistors of each half bridge. The half bridges are represented in groups. The half bridges of the groups are connected with a supply voltage in group-wise, and the connection points of different groups are connected with each other.