System offers high-performance motion control
An
Inmoco product story
Edited by the Engineeringtalk editorial team
Mar 26, 2007
Mercury II's performance is the result of its next-generation optical design and SmartPrecision II electronics.
Inmoco has released MercuryTII from MicroE Systems, designed for high-performance motion control applications.
It provides resolutions ranging from 5 microns to 1.2nm, linear, or 16,000 CPR to 268M CPR rotary; speeds up to 5m/s (at 0.1microns resolution); and offers the flexibility of one sensor for use with PurePrecision laser tape, glass linear and glass rotary scales.
Mercury II's performance is the result of its next-generation optical design and SmartPrecision II electronics.
Mercury II operates at speeds up to three times faster than competitive encoders, offering, for example, a maximum speed at 0.1microns resolution of 5m/s.
Users can set the interpolation level in integer steps for precise control.
It provides the highest accuracy with automatic signal optimisation and real-time signal processing algorithms.
These ensure levels of accuracy previously only expected from fine pitch glass systems.
On short travel systems with linear tape and glass scales, the accuracy levels are +/- 70nm and +/-25nm respectively, while on longer travel systems the figure for tape is +/-5 microns per metre, and up to +/-1 micron for glass.
A completely new sensor instantly compensates for signal variations, and provides resistance to contamination from oil, fingerprints and dust.
The digital output from the sensor offers best in class noise immunity, and makes the Mercury II ideal for high PWM/EMI noise applications.
As a result, cables up to 5m long can be run from the sensor, and 20v long from the interpolator to the controller.
Its low Z-height sensor - at just 8.7mm tall - fits where others can't, and its broad alignment tolerances mean fast, easy sensor alignment.
Additionally, bi-directional, stick- on optical index and limit markers make installation or customisation very easy to achieve.
Finally, laser tape on 50m reels eliminates lead-time issues, making it both simple and quick to manufacture systems of any size.
Supporting Mercury II is SmartPrecision II software.
Mercury II's pushbutton set-up does not require the use of the software; however, SmartPrecision II adds functionality.
It enables programmable resolution, encoder set-up, plus alarms and analysis using a variety of data plots.
In addition, the facility for rea-time monitoring from a web browser enables users to get diagnostic support from MicroE Systems, no matter where their equipment is located.
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