 High Speed: 10m/s and High Resolution: 1.2 Nanometers from a Miniature Sensor
The new Mercury II™ 6800Si serial interface encoder from MicroE Systems achieves ground-breaking speed and resolutions, all with industry-leading small sensor size. Linear applications can be up to 10m/s at 1.2nm resolution, and rotary up to 8.2M CPR at 6,000 RPM - many times faster than A-quad-B encoders. This remarkable performance is accomplished using SPI serial word communications with the motion controller. The serial word includes 35 bits for position, 9 bits for status (index, limits, and signal alarms) and CRC error checking and is transmitted directly from the encoder to the controller’s DSP. Up to 227,000 position reads per second are possible, supporting the highest servo loop update rates.
The Mercury II 6800Si sensor is only 8.2mm high, weighs just 3 grams and provides output resolution of 1.2 nanometers. The small, high-performance encoder system will enable a broad range of new capabilities in compact motion control stages and positioners through a combination of accurate nanometer-level positioning, compact system design, and unprecedented affordability for this level of performance. Applications include microscopy, life sciences, semiconductor equipment, automated optical inspection, fiber optics manufacturing, nano-positioning, instrumentation, laser process equipment, metrology and many more.
 Capable of linear and rotary applications, Mercury II 6000’s exceptional cyclical error (short-travel accuracy) of ±20 nanometers provides the precise nano-positioning feedback and smooth velocity control of encoders costing 2-3 times more. Long-travel accuracy of ±1µm is achieved using glass scales.
Rotary / angle encoding with resolutions up to 268M CPR is also a standard feature of the encoder. The same sensor works in both linear and rotary applications, reducing design time and unique parts count for applications with both linear and rotary requirements. A vacuum version of the sensor is available with rating to 10-8 torr, and bake out at 150°C for 48 hours. Integral index, limits, low signal alarm, and status LED’s enhance Mercury II 6800Si’s usefulness in many motion control applications. Use of a standard D-sub connector, in conjunction with the miniature sensor, minimize system footprint.
View the data sheet here.
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 High Performance Encoders Catalog Available from MicroE Systems
MicroE Systems has released a new High Performance Encoders Catalog. A broad range of linear and rotary optical encoders are featured, both in kit and sealed industrial categories. Output resolutions range from 5µm to 1.2 nanometers (linear) and from 3,000 to 268M counts per rev. (rotary). Accuracy plots in the Catalog reveal measuring accuracy up to ±1µm. PC board mount versions are shown, including a 7mm x 11mm BGA chip package. Compact encoders for vacuum applications up to 10-8 torr are introduced with up to 1.2 nm of resolution. The Catalog includes insights into the company’s technology, customization capabilities, global sales and technical support.
The 33 encoder models are organized by application class – high performance, compact, ultra-performance and industrial – to make finding the right encoders easier.
The optical design of the encoders enables faster, more accurate motion system positioning and more compact applications. Models with exceptionally low cyclical error (short-travel accuracy) of ±20 nanometers enable more accurate nano-positioning and smoother velocity control. Low jitter, power consumption and heat generation, as well as broad mechanical tolerances for easier setup, are all features of the encoders’ optoelectronic technology.
The catalog can be viewed and downloaded here.
Contact us online.
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See All of Our Latest Encoder Systems at These Upcoming Trade Shows:
MD&M / ATX West 2012
February 14-16, Booth 4380
Anaheim Convention Center
Anaheim, CA, USA
Semicon China 2012
March 20-22, Booth 2152
Shanghai New International
Expo Centre
Shanghai, China
Control 2012
May 8-11, Booth 3410
Stuttgart Exhibition Centre
Stuttgart, Germany
Motion Control Korea 2012
May 15-17
KINTEX
Gyeonggi-do (Seoul), Korea
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