Magnetic linear encoders

Turck has introduced a line of Kübler robust magnetic linear encoders. Utilising A and B output voltage channels plus a periodic index with the corresponding inverted channels, these encoders are designed to achieve high accuracy in a broad range of linear motion applications. The T8.LI20 and T8.LI50 linear encoders are available with either a push-pull output or an RS422 interface and provide a voltage range from 4.8 to 30 VDC.

The linear encoders are used with magnetic bands that are attached to the mounting surface and protected by a stainless steel cover. The encoder’s resolution is up to 5 µm with quadruple evaluation, and its repeat accuracy is ±1 increment with a measuring speed up to 25 m/s, depending on the resolution.

Kübler encoders use non-contact technology and can survive environments with high vibration (30 g and 10-2,000 Hz) and shock (500 g for 1 ms). The products can also be used outdoors, due to an IP67 protection rating, wide temperature range and the weatherproof die-cast housing. The metal housing also offers improved shielding against electromagnetic interference.

A built-in LED provides a warning signal or an index pulse, allowing for simple set-up and diagnostics. Connections are made via a high-grade shielded PUR cable that is also suitable for cable track installations.