proximity sensing technology

Proximity sensing technology detects how close objects or people are without physical contact, often using electromagnetic fields like radio waves, magnetic fields, or infrared light. For example, smartphones use it to turn off the display when holding the device near your ear. Other applications include automatic door openers, parking sensors, and touchless payment systems. The sensor sends out a signal, and when an object is nearby, the sensor detects changes in the reflected signal or field, allowing devices to respond automatically. This technology enhances convenience, safety, and efficiency across various industries.