The encoder achieves ±25-nm accuracy with glass scales. Operating speed at 50-nm resolution is 2 m/sec. The miniature sensor fits space-restricted motion-platform designs and works with adhesive-backed PurePrecision laser-tape scales, as well as glass-linear and glass-rotary scales. The encoder has stick-on bidirectional optical index and limit markers, which let designers configure the scale to the application during production. The Mercury II has a ±2° sensor-alignment tolerance.
MicroE Systems,
8 Erie Dr., Natick, MA 01760,
(508) 903-5000,
microesys.com
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