Engineering Marvel – The CPI SL6000 30 Meter Hardened Linear Position Sensor Since the introduction of our SL series hardened draw-wire Linear Position Sensors almost 20 years ago, we’ve learned a lot about long stroke hydraulics from our hydraulic cylinder manufactures. Our first sensor product was largely a magnetostrictive sensor replacement, able to form-fit-function replace these sensors in cylinders where longer stroke lengths (1m-3m) exposed the weaknesses of that technology. But we’ve moved so far beyond that now. In 2008 we introduced our first Subsea rated linear position sensors, capable of operation in open seawater at depths up to 1 mile below the surface. And over the years, we’ve had requests for longer and longer stroke lengths, all while maintaining our robust survivability characteristics. It was only a matter of time before our technology broke the 100 foot barrier. But the advancement here may be more significant than just this stroke length milestone: that’s because it maintains high accuracy and robust operating characteristics while doing it. The SL6000 is the same ATEX/IECEX safety rated, subsea capable, non-contacting, high endurance draw-wire sensor that it always has been. How to make the Worlds most Robust 30 meter Linear Position Sensor It certainly helps if you are already making the world's most robust 16m sensor, the SL5000. Despite the marked difference in the appearance of the SL6000, this sensor design was much more an evolution of our field-proven sub-sea sensor than it might seem. To be able to get a draw-wire sensor to reach 100 meters reliably, you’ll need to solve the usual issues related to cable sag and retraction force. We use the same basic approach as is used in our SL2000-SL5000 series with a couple of enhancements. |
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