How to select the right sensor?

Choosing between: inductive sensors, capacitive sensors, photoelectric sensors, ultrasonic sensors

Various technologies can be used for detecting metallic objects depending on the application area:

1. Inductive sensors for detecting all metallic objects at close range (< 50 mm).
2. Capacitive sensors for detecting the presence or level of almost any material and liquid at close range (< 50 mm).
3. Photoelectric sensors in diffuse, retro-reflective or through-beam technology for detecting virtually any object over great distances (> 50 mm) using light.
4. Ultrasonic sensors for detecting virtually any object over greater distances (> 50 mm) using sound.

Learn more about Balluff's sensor selection