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Difference Between Two Things

Difference between active and passive sensors

Distinguish, differentiate, compare and explain what is the difference between active and passive sensors.

Difference between active and passive sensors

1. Active Sensor requires an external AC or DC electrical source to power the device. Passive Sensor provides its own energy or derives energy from phenomenon being studied.

2. Active sensor examples: Strain gauge, blood pressure sensor. Passive sensor example: Thermocouple.

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