FP212L100-22 Просмотр технического описания (PDF) - Siemens AG

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FP212L100-22

Differential Magnetoresistive Sensor

Siemens AG 

FP 212 L 100-22

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 i.e 2×1.6 mm (see Fig. 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 VOUT. The output voltage VOUT

without excitation then is 0 V when the offset is compensated.

Fig. 1

Schematic representation of a toothed wheel actuating an FP 212 L 100-22

Fig. 2

Measuring circuit and output voltage VOUT waveform

Semiconductor Group

3

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