In an inductive proximity sensor, which component in the sensing head is the inductor used to generate the field?

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Prepare for the OCC SACA Sensor Logic Systems 1 (C-205) Exam. Study with detailed questions and insightful explanations. Get ready for your certification!

Multiple Choice

In an inductive proximity sensor, which component in the sensing head is the inductor used to generate the field?

Explanation:
The sensing head uses a coil to generate the magnetic field. When the coil (the inductor) is energized by an oscillator, it creates a high-frequency magnetic field around the sensor. A nearby metal object disturbs this field, which changes the coil’s impedance; the sensor’s detection circuit then recognizes this change and signals presence. Other parts like a diode or transistor have roles in protection, rectification, or switching, but they do not generate the magnetic field themselves. The coil is the source of the field.

The sensing head uses a coil to generate the magnetic field. When the coil (the inductor) is energized by an oscillator, it creates a high-frequency magnetic field around the sensor. A nearby metal object disturbs this field, which changes the coil’s impedance; the sensor’s detection circuit then recognizes this change and signals presence. Other parts like a diode or transistor have roles in protection, rectification, or switching, but they do not generate the magnetic field themselves. The coil is the source of the field.

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