altHoneywell (Minneapolis, MN) offers the SMART rotary configuration position sensor that provides 360° non-contact angular position sensing. The sensor enables users to replace an optical encoder, or to utilize a sensor instead of a resolver. The sensor utilizes non-contact magnetoresistive (MR) technology to determine the object’s position, which allows it to sense position in dirty and harsh environments. It is designed to measure values down to 0.01º. Potential applications include steering angle, articulation angle, and boom arm detection, as well as solar panels or wind turbines. A combination of an ASIC and an array of MR sensors is used to determine the position of a magnet collar attached to a rotating object to identify and control the object’s position. The sensor’s automotive-grade potting makes it more resistant to vibration, shock, and extreme temperatures.

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