High-performance magnetic linear encoder systems
Balluff's magnetically encoded linear measurement systems are a true alternative to costly, fragile optical systems in linear direct drives. With traverse speeds up to 10 m/s, these real-time-capable position measurement systems deliver precise control, even in highly-dynamic applications. High accuracy and low hysteresis reduce hunting, delivering maximum energy efficiency. Non-contact, wear-free operation resists the contamination that often plagues optical systems, eliminating the need for additional encoder protection. When mounted according to simple guidelines, the strong magnetic fields generated by the linear drive system do not compromise proper operation or reduce system accuracy.
Gearless linear direct drives are increasingly replacing conventional systems in machine construction and automation applications. Absolute, high-precision encoded linear measuring systems for longer strokes are required for position feedback on the servo axes.
Balluff absolute linear measurement system was designed for precise positioning over long distance and is multi-slide capable; simply add more sensors heads reading from one encoded tape. This means all slides are working from the same absolute position reference, enhancing control and operating security.
Balluff's precision-encoded absolute magnetic tape scale can be attached to the underside of moving slides, to be read by the encoder read head. In this configuration, the electronics head is stationary and the tape is moving, eliminating the need for cumbersome cable drag chains, saving space and reducing costs.
The measurement signal is available upon system is power-up, so no homing or reference run is required to acquire actual position.