Linear actuators frequently employ a stepper motor to position the load, or perhaps a or servo motor with encoder. These require a ballscrew to convert a precise rotary position to a linear one. Ballscrews are expensive, heavy and will often require protection from a harsh environment. CambridgeIC's linear position transducers allow designers to measure position at the point of load, so the ballscrew may be replaced with a belt to deliver a lighter, more cost effective module.
The linear sensor is built from a printed circuit board (PCB). A PCB is stable and robust, and allows the sensor, its processing and motion control circuitry to be combined. Sensor processing is performed with a CambridgeIC Central Tracking Unit (CTU) chip such as the CAM204, which processes position information and communicates it to motion control circuitry.