What happens to the output of an inductive proximity sensor when a metal object is in the sensing field?

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Multiple Choice

What happens to the output of an inductive proximity sensor when a metal object is in the sensing field?

When a metal object enters the sensing field, the inductive proximity sensor detects a change and switches its output state. This means a defined voltage appears at the output to indicate the presence of metal, which is read by the controller or indicator. Conceptually, the sensor’s coil and oscillator respond to the metal by producing a logic-level signal at the output, not just a constant change in coil current. So the best description is that a voltage is present at the output when metal is detected. The other ideas don’t fit because the sensor does change its output state, the change isn’t simply a rising current in the coil, and “output saturates” isn’t the standard way the output signal is described.

When a metal object enters the sensing field, the inductive proximity sensor detects a change and switches its output state. This means a defined voltage appears at the output to indicate the presence of metal, which is read by the controller or indicator. Conceptually, the sensor’s coil and oscillator respond to the metal by producing a logic-level signal at the output, not just a constant change in coil current. So the best description is that a voltage is present at the output when metal is detected. The other ideas don’t fit because the sensor does change its output state, the change isn’t simply a rising current in the coil, and “output saturates” isn’t the standard way the output signal is described.

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