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Dual-axis Averager Ideal for Rotary Applications
April 29, 2005 |Estimated reading time: Less than a minute
NATICK, Mass. — MicroE Systems' Mercury 3000Si dual-axis averager is comprised of two 8.4-mm-tall, high-performance Mercury encoder sensors, a SmartSignal dual-interpolator module and a rotary glass scale. The system eliminates eccentricity errors through an advanced signal-averaging algorithm. Processing and programmable interpolation to x1024 occur within the unit's FPGA. The high-speed serial word interface allows operation at maximum resolution and maximum rotational speed—up to 16.8 M CPR (0.08 arc-sec) at 1300 rpm. The bi-directional optical index signal is repeatable to the encoder's resolution. Ideal for precision rotary tables and actuators and high performance laser beam steering applications, such as marking, drilling, welding and cutting, it is also ideal for rotary applications such as long-range, high-magnification surveillance systems. Other applications include accurate centering of rotary scales during motion system setup. LED indicators enable instrument-free sensor alignment, where users reportedly can align both sensors in under 60 sec. Gain and phase correction are optimized automatically. Additional advanced features include a dual-axis averager version of SmartSignal software, which provides digital readouts and robust programmable features, including multiple index modes, output channel configurations and serial word interface settings.