Linear Actuator

CambridgeIC's linear position transducers measure position at the point of load, replacing ballscrews with a belt to deliver a lighter, more cost effective module.

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. Using a CambridgeIC linear position transducer can remove the need for a ballscrew.

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.

  • No mechanical or electrical contact between target and sensor
  • Absolute sensing means no need for home and limit sensors
  • CTU chip can also sense motor shaft angle for velocity feedback
  • Yields a lighter system that is cheaper to manufacture and assemble




Founded in 2007, CambridgeIC has developed single chip processors and a set of standard sensor designs and integration tools. These help customers embed resonant inductive sensing inside their products, by drawing on modular and well proven components.


Cambridge Integrated Circuits Ltd
21 Sedley Taylor Road
+44 (0) 1223 413500