A magnetic sensor turned out to be a useful replacement for a simple limit switch that prevented overtravel in screw jacks. ActionJacs made by Nook Industries in Cleveland, Ohio, once incorporated ...

We’re used to thinking of limit switches as a mechanical device that cuts the motor connection before physical damage can occur. [Anthony] decided to try a different route with this project. He built ...

A new limit switch features a precision inductive sensor with a hysterisis of less than 1 µm, claimed as the lowest on the market. The IPS05/4608KS inductive sensor switch has a sensing distance of ...