The Advantages of Capacitive vs Optical Encoders

October 05, 2015 // By Jeff Schnabel, CUI Inc
CUI has developed a proprietary method of measuring rotational movement by implementing an ASIC to detect changes in the frequency of a signal modulated by capacitive reactance. Used for years as the key technology in digital callipers, it has been applied to position encoding in the form of the AMT series modular encoder. Compared to the technology most commonly used in rotary encoders today, capacitive encoding holds many advantages over optical encoding.
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CUI, capacitive reactance, capacitive encoders