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World’s smallest 50-nanometre digital encoder has all electronics in single sensor measuring just 8.9mm high.
Inmoco has extended its Mercury range of digital encoders from MicroE Systems with the introduction of the Mercury™ 1800 kit encoder. The Mercury™ 1800 is the smallest encoder to provide up to 50-nanometre or 100- nanometre resolution directly from the sensor, which measures just 8.9mm high and contains all signal processing and interpolation electronics. This makes the Mercury 1800 quick to install, and perfect for high-noise environments, since no remote electronics are required.

The M1800 is an ideal OEM product, enabling engineers to achieve significant space savings, cost reductions and performance improvements in their designs. It is available in two resolutions: 50 or 100 nanometres, linear, or up to 6.5 million CPR, rotary, both of which use the same sensor, to minimise inventories.
The high resolution provided by the M1800 minimises cogging for smooth motion control, while its exclusive 1-LSB optical index, allows unsurpassed system repeatability, ease of system set-up and start-up, and also recovery at full encoder resolution. Importantly, the Mercury encoder index is built into the scale and requires no installation. This compares favourably with competitive encoders that offer low-speed Hall sensor indexes, which are time-consuming to install, often have to be adjusted to work correctly, operate at limited speeds and can only be read from one direction.
Wide alignment tolerances mean that OEMs can set-up the M1800 in about 30 seconds using MicroE Systems SmartPrecision™ Alignment Tool. In addition, Optional SmartPrecision™ software provides a digital read out in engineering units and Lissajous data plots for other set-up and diagnostic functions. 
Two connector options are available with the M1800: The model M1800S is fitted with a standard high-density D-sub connector and is completely EMI shielded. The M1800H is equipped with a high-density micro connector for use very tight spaces. Digital A-quad-B output is standard and is RS-422 compatible.
Mercury Encoder Family From MicroE Systems
The Mercury encoder family includes twenty- one models, all of which are claimed to be smaller, faster and smarter than any other encoders on the market. This breadth of product range means that OEM engineers can select the encoder model that is just right for their application - programmable, digital, analogue and vacuum models- while enjoying the performance improvements only Mercury encoder systems can deliver.
For further information contact : Gerard Bush, Sales Application Engineer, INMOCO Limited, 4 Brunel Close, Drayton Fields, Daventry  NN11 8RB. Tel: 01327 307600  Fax: 01327 300319. E-mail

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