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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Better Alternatives to Pneumatic Cylinder End-of-Stroke Detection

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There are better alternatives to detect pneumatic cylinder end of stroke position than reed switches or proximity switches. By better, I mean they are faster and easier to implement into your control system. In addition, you can realize other benefits such as commonality of spare sensors and lower long-term costs. So what are the better solutions?

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