Thinking Outside the Cylinder

In a previous entry, I discussed how linear position sensors are used with hydraulic cylinders to provide continuous position feedback.  While this is certainly one of the most common ways linear position sensors are used, there are many applications for linear position sensors that either don’t involve a hydraulic cylinder at all, or that involve a cylinder only indirectly.

Linear position sensors for external use (not installed into a hydraulic cylinder) offer some very tangible benefits when compared to in-cylinder sensors.  Let’s explore a few of those benefits:

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What is the hysteresis of your magnetic field sensor?

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I received a call the other day from a customer who wanted to use a magnetic field sensor on a cylinder, and evidently was requiring very precise results. He asked, “what is the hysteresis of your sensors? I notice that it is listed in your catalog as a percentage and I need to know the exact value in millimeters.” My response was, “well it depends”,  upon which he was not overly pleased. I then continued to explain my answer which leads me to the contents of this posting.

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