A common application seen throughout the industrial and commercial sectors is proximity sensing—detecting when some object is physically close to a sensor. A variety of processes can be implemented ...

Balluff of Florence, Kan. has released a new generation of inductive ring sensors that are designed to help whenever the infeed of small metal parts needs to be monitored. The company says the sensors ...

Proximity sensors detect objects without physical contact. Most proximity sensors emit an electromagnetic field or beam and look for changes in the field. The object being sensed is called a target.

In quick review, an inductive sensor generates an electromagnetic wave at a specific tuned frequency. The tuned circuit inside the sensor has a high impedance at that frequency, creating a high ...