Eltra EAM36 magnetic multiturn encoder

Eltra has released the compact EAM36 magnetic multiturn encoder with a 36-mm diameter. Because it is based on the self-powered Wiegand system, no internal gears or batteries are required to maintain a position reading after a power cycle. It has 51-bit resolution, which consists of 12 bits for a single turn and 39 bits for number of revolutions.

Multiturn encoders with parallel outputs can have a very large number of outputs, making the cables very thick and difficult to attach to connectors. The EAM36 has SSI serial output, which only requires four wires (two for clock and two for data).  

The product has an IP65 enclosure rating and a maximum operating temperature of 85°C. With a maximum shaft speed of 8000 rpm, it is available in both flange-mounting and hollow-shaft versions. Typical applications include position monitoring in machines where high gear reduction ratios are used.