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Design Factors – Magnetic Types
Unipolar: Only a south pole will operate the sensor. The sensor turns on
with the south pole(+) and off when the south pole is removed.
• Bipolar: Sensor output is pole-dependent. A south pole (+) is designed to
activate the sensor; a north pole(-) is designed to deactivate. It’s possible
that the sensor could turn off and still be within a positive Gauss level.
• Latching: Specifications are tighter on latching. Sometimes it is designed
to make certain that when the south pole(+) is removed from the sensor, it
will stay on until it sees the opposite pole(-).
• Omnipolar: The sensor is designed to operate with either magnetic pole(+
or -).
• Ratiometric linear: Output is proportional to magnetic field strength. Output
sensitivity range is 2.5 – 3.75 mV per unit of Gauss.
Connection
Schematic
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