The Siko wire actuated sensor for potentiometer, 4 to 20 mA, or incremental shaft encoder output, measures up to 1 m.
The circumference of the drum is 10 mm, which means that a 10 mm linear movement turns the drum with 360°C. The wire winds up without crossing over previous turns, making all turns on the drum equal by means of a separate travelling pulley on the drum. A specialised cable, (paraleine), is used which is four times stronger than steel wire and far more flexible.
The shaft of the potentiometer is directly mounted onto the drum. The measuring length is controlled by the type of multiturn potentiometer. Measuring lengths are 1000 mm with 10-turn pot, 500 mm with 5-turn potentiometer and non-standard 300*#160;mm with 3-turn pot. Maximum resolution with incremental encode is 1000 pulses per rev->0, 1 mm linear resolution. The unit is compact, measuring 40 x 40 x 50 mm.
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