Proximity Sensor Types Explained! Proximity sensors are widely used in automation and industrial applications to detect the presence of objects without physical contact. Choosing the right sensor can improve reliability, accuracy, and system performance. Capacitive Proximity Sensor • Detects both metal and non-metal objects • Commonly used for liquid level detection and bulk material sensing Inductive Proximity Sensor • Detects metallic objects only • Ideal for machine automation, part counting, and position detection Photoelectric Proximity Sensor • Uses light to detect objects over long distances • Commonly used in conveyors, automatic doors, and packaging systems Ultrasonic Proximity Sensor • Detects almost all materials using sound waves • Suitable for distance measurement, tank level monitoring, and parking systems Magnetic Proximity Sensor • Detects magnetic fields • Used in door security systems, cylinder position sensing, and limit detection Quick Tip: Inductive = Metal Only Capacitive = Metal + Non-Metal Photoelectric = Long Distance Ultrasonic = Distance Measurement Magnetic = Magnet Detection Save this infographic for future reference and share it with fellow engineers and technicians. Post navigation 1 bar ≈ 10 meters of water head Battery Capacity (mAh) Explained Simply!
