Measurement – Linear position measurement

Does your application require exact and repeated positioning of objects along a straight line? Then linear positioning systems with integrated sensors are the right choice. Their various sensor technologies let you solve special application requirements reliably – regardless of whether you are using hydraulic, electric or pneumatic modules.

Application examples

Workpieces are precisely position on the slide of a linear axis. This allows you to reduce production time to a minimum while ensuring the desired quality of workpiece machining. Magnetic encoders installed along the linear axis report the actual slide position to the controller (PLC) continuously and in real=time – even when the slide is moving at a speed of up to 10 m/s.

In a machine tool the clamping state of a spindle must be continuously monitored during machining. This improves results on the workpiece and increases the reliability of the overall system. Inductive positioning systems provide continuous feedback to the controller: whether the spindle is unclamped, clamped with a tool or clamped without a tool.

Sensor technologies

The following sensor technologies are ideal for linear position measurement:

• Magnetic encoders can be directly integrated into linear drives. They are available in the smallest form factors.

• Inductive positioning systems provide information about correct tool clamping.

• Magnetostrictive linear position sensors are ideally suited for use in hydraulic drives. There they offer the same pressure rating as the hydraulic cylinder itself.