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I need to measure the position of a long stroke cylinder, 6000mm. The environment restricts the use of external feedback devices (optics, cable transducers). I could use a transducer mounted inside the cylinder, bore, but the retrofit price is over $25K each, and I have seven cylinders to do. I heard once about a slave cylinder that could be mounted remotely, in our case at the valve stand. This slave cylinder would be small and could have the position feedback installed in it. The stroke of the slave would be directly proportional to the large master cylinder. I would like to have at least 5mm accuracy.
My question is has anyone used an arrangement like this, and how accurate would the feedback be?
My question is has anyone used an arrangement like this, and how accurate would the feedback be?