What does Capacitance Proximity Sensor (CPS) detect?

What does Capacitance Proximity Sensor (CPS) detect?

• A. Intrusion Through Openings Inside the Protected Area.
• B. Temperature Changes.
• C. Penetration Through Openings That Are Covered by Grills, Bars, or Metal Shutters.
• D. Noise Vibrations.

Answer: (C)

Capacitance Proximity Sensing detects changes in the electric field caused by a body or object passing near or through an opening that is protected by grills, bars, or metal shutters. When someone tries to push through such a barrier, the presence of the body alters the capacitance between the sensor and the target, producing a detectable change that triggers the alarm. This makes CPS specifically suited for openings that could be bypassed by reaching through or slipping through grill-covered gaps. It isn’t about temperature changes or detecting noise/vibrations, and it’s not used for general intrusions inside the protected area.

Capacitance Proximity Sensing detects changes in the electric field caused by a body or object passing near or through an opening that is protected by grills, bars, or metal shutters. When someone tries to push through such a barrier, the presence of the body alters the capacitance between the sensor and the target, producing a detectable change that triggers the alarm. This makes CPS specifically suited for openings that could be bypassed by reaching through or slipping through grill-covered gaps. It isn’t about temperature changes or detecting noise/vibrations, and it’s not used for general intrusions inside the protected area.