Lähisyysilmaisin
Lähisyysilmaisin, often translated as proximity sensor, is an electronic device that detects the presence of nearby objects without physical contact. It typically works by emitting an electromagnetic field or a beam of light and then sensing changes in this field or beam when an object enters its detection range. Different types of proximity sensors utilize various physical principles to achieve this detection.
Inductive proximity sensors, for instance, work by generating a high-frequency electromagnetic field. When a metallic object
Capacitive proximity sensors, on the other hand, can detect both metallic and non-metallic objects. They operate
Photoelectric proximity sensors use a beam of light, often infrared or visible light, to detect objects. They
Proximity sensors are widely used in automation and control systems across various industries. Applications include object