PWB encoders
Multiturn solution for large hollow shafts
With the 'IMEA 64', PWB encoders is expanding its portfolio of bearingless absolute encoders with magnetic scanning. It can be used to precisely record single and multiturn positions even when de-energized and store them for up to 18 years.
The IMEA 64 is a compact bearingless absolute encoder with magnetic sensing that has been specially developed for kinematic applications with hollow through shafts of larger diameters that rotate at speeds of up to 9,000 rpm and whose control places high demands on the measuring accuracy, flexibility and service life of the encoder. The absolute encoder can be operated in both single and multiturn mode and, according to PWB encoders, offers the possibility of error-free detection of all angular positions for many years, even when de-energized. In terms of measuring accuracy, the encoder enters the range of simple optical encoder systems; maximum resolutions of up to 42 bits of absolute position data are possible. The resolution can be set to up to 16 bits in multiturn mode and up to 26 bits in singleturn mode. The data rate is 10 Mbit/s. Thanks to high-performance Hall sensors and differential scanning, the hollow shaft encoder is insensitive to external fields. Extensive diagnostic functions also enable the angle encoder to be monitored. The absolute rotary encoder is designed at the factory so that it can be mounted on hollow shafts with internal diameters of 17 to 45 mm, but can always be adapted to customer requirements.
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