Turck metal differentiating proximity sensors

Turck has announced its analog+ proximity sensors have been enhanced to differentiate between varying types of metal during detection — independent of their distance from the sensor. Available in ring and flat housings, these material detection sensors provide sensing ranges up to 11 mm and are suitable for stamping, die-cutting and metal-sorting applications, where different metal types must be readily and accurately detected.

The analog+ material detection sensors use inductive coils whose RF fields are influenced differently for each metal type. The signal difference is then converted into a 0 to 10 VDC analog signal to signify which type of metal is being detected. Additionally, a wide operating temperature rating of -10 to 70°C makes these sensors useful in cold pilger rolling mills used for drawing seamless pipes.