Which of the following is a component of a Capacitive Proximity Sensor?

A capacitive proximity sensor is designed to detect the presence of nearby objects without physical contact. One crucial component that enables this functionality is the probe. The probe acts as an electrode that creates an electric field. When an object enters the detection range and alters the capacitance, the sensor can detect this change and consequently identify the presence of an object.

The probe is essential because it not only facilitates the capacitive sensing mechanism but also allows for the detection of a wide variety of materials, such as plastics, liquids, and even some types of metals, depending on the design. The effectiveness of the sensor relies heavily on the characteristics of the probe, making it a fundamental part of the system.

Other components like coils or magnetic fields are not relevant to capacitive sensors, as they operate on different principles. Capacitive sensors rely on the ability to measure changes in capacitance rather than electromagnetic induction or magnetic fields. Thus, the probe is the primary component that defines the operation of a capacitive proximity sensor.