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Specified for applications in the air, on land and under, at sea and subsea, solid-state RLS magnetic rotary encoders deliver high-resolution positioning (up to 8,192 count per revolution), speeds to over 30,000 rpm, accuracies to 0.5°, while withstanding temperatures from -40°C to +125°C. Breakthroughs in simplicity, essentially just a magnet and chip, the industrialized non-contact designs bring wear-free, low-inertia operation, long-run reliability, and space-saving miniaturization to problem conditions and harsh operating environments.

Easy to integrate, the RLS mini mag encoders come in packaged, component, and modular models, absolute or incremental (1,024) versions, with analog, linear voltage or linear current outputs. Packaged versions are available in non-contact (RM) versions or traditional bearing/shaft reformat (RE). Robust sealed models feature "hard hat" metal housings with the ASIC embedded in an epoxy matrix for durability in rugged conditions. Sealed units are available with protection to IP68 for especially harsh conditions, including immersion applications (e.g., pumps and gearboxes). Designers who require the smallest possible encoder can incorporate encoder components or modular solutions into their own designs.

The encoders are available in a range of binary and decimal resolutions from 7-bit (128 counts per revolution incremental) to 13-bit (8192 cpr) resolution. Output options include absolute SSI, incremental, analog, linear voltage and linear current. Supply voltage is either 5V or 24V, depending on encoder/output format. Linear voltage or current output options can be used in traditional potentiometer applications.

Exceptional design flexibility fits a wide range of industries and applications. The Renishaw RLS mini mag encoders have been adopted for motor control, marine instrumentation and directional control, oil rigs, subsea systems, aircraft and missile control, pumps and valves, metalworking, industrial automation, printing and converting, steer-by-wire systems, off-road vehicles and mobility devices, medical scanners, industrial power tools, and CCTV.

At the heart of every Renishaw magnetic rotary encoder are two core components — a small diametrically polarized magnet and a custom Hall sensor ASIC which contains an array of Hall effect sensors that generates a voltage when exposed to a magnetic flux field. The ASIC detects the change in magnetic flux as the magnet rotates above it. Through creative design, the ASIC is able cancel magnetic interference, enabling it to operate in areas of high external magnetic fields and cope with imperfections in the shape of the flux field of the actuating magnetic.