Magnetoresistive Sensors

Discussion in 'General Electronics Chat' started by Tree1, Mar 25, 2011.

  1. Tree1

    Thread Starter Member

    Nov 30, 2010
    Magnetoresistive sensors such as ABS wheel speed sensors are powered. Some are two-wire having a power and signal terminal. Why must you put a resistor between the output and ground to be able to measure the output voltage as opposed to the purely inductive sensors two-wire ( sensor+ and return) where you can observe the output waveform without putting a resistor anywhere ??