What does a prox refer to in instrumentation?

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Multiple Choice

What does a prox refer to in instrumentation?

Explanation:
Proximity sensors detect the presence of nearby objects without touching them. In instrumentation, “prox” is shorthand for a proximity switch or sensor. They switch their output when a target comes within the sensing range, using inductive, capacitive, or magnetic sensing methods. This non-contact sensing reduces wear and is commonly used for position or presence indication in control loops. It’s distinct from a proportional controller, a processor, or a protocol standard, which are different kinds of devices or concepts.

Proximity sensors detect the presence of nearby objects without touching them. In instrumentation, “prox” is shorthand for a proximity switch or sensor. They switch their output when a target comes within the sensing range, using inductive, capacitive, or magnetic sensing methods. This non-contact sensing reduces wear and is commonly used for position or presence indication in control loops. It’s distinct from a proportional controller, a processor, or a protocol standard, which are different kinds of devices or concepts.

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