FP210D250-22 Datasheet, PDF (3/5 Pages) Siemens Semiconductor Group – Differential Magnetoresistive Sensor

FP 210 D 250-22
1. Digital Revolution Counting
For digital revolution counting, the sensor should be actuated by a magnetically soft iron
toothed wheel. The tooth spacing should correspond to about twice the magneto resistor
intercenter spacing (see Figure 1).
The two resistors of the sensor are supplemented by two additional resistors in order to
obtain the sensor output voltage as a bridge voltage V_OUT. The output voltage V_OUT
without excitation then is 0 V when the offset is compensated.
Figure 1
Schematic Representation of a Toothed Wheel actuating an FP 210 D 250-22
Figure 2
Measuring Circuit and Output Voltage V_OUT Waveform
Data Sheet
3
1999-04-01