Bench Testing A Variable Reluctance Sensor

Published: 22 December 2019
on channel: evilution

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Testing a VRS in situ isn't that hard as long as you have an oscilloscope and a power supply. The scope is a DS211 and the power supply is outputting 5v DC.

Connect the + lead of the power supply to 1 pin of the sensor (either one).
Connect the - lead of the power supply to the negative probe of the scope.
Connect the positive probe of the scope to the remaining pin of the sensor.

Apply 5 volts and manually spin the wheel or the engine.

Watch the scope to ensure you are getting a sinusoidal (sine) wave with the middle of the wave around the 5 volts line.

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