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Product category: Rotary Position, Tilt and Angular Sensors
News Release from: Avago Technologies | Subject: AEAS-7000/AEAS-84AD
Edited by the Engineeringtalk Editorial Team on 08 July 2004

Compact absolute encoder can count
revolutions too

A new module adds motor-shaft revolution-count capability to the Agilent AEAS-7000, the industry's smallest high-speed, plug-and-play absolute encoder.

A new module adds motor-shaft revolution-count capability to the Agilent AEAS-7000, the industry's smallest high-speed, plug-and-play absolute encoder This is the industry's first module approach for producing a complete housed encoder

It eliminates up to 120 discrete components and the frequent alignment they require during the manufacturing process, reducing costs by as much as 40%.

The AEAS-7000/AEAS-84AD combination is targeted at industrial automation applications, including servomotors, robotics, machine tools and wafer handlers.

The combination of the AEAS-7000 absolute encoder and AEAS-84AD shaft revolution-count module is used to assemble a complete housed absolute encoder solution.

This modular approach reduces the number of assembly steps to four, compared with other approaches that require as many as eight.

The encoder combination also dramatically reduces the number of components needed to produce a housed encoder from approximately 120 to as few as four, decreasing inventory, manufacturing and purchasing costs.

In addition, it reduces manufacturer design cycles by 50% by eliminating the need for multiple alignment adjustments with its industry-first plug-and-play feature.

Absolute encoders are used in machines that need information about the position of components before any motion occurs.

The AEAS-7000/AEAS-84AD, from Agilent's Semiconductor Products Group, is capable of position resolutions ranging from 12 to 16bit, combined with 12 or 14bit revolution count resolution.

The overall dimensions of the combination of an AEAS-7000 encoder with an AEAS-84AD series module are 55mm maximum diameter and 30.55mm typical height.

Two versions of the revolution-count module are available: the AEAS-84AD-LBSF0 with 14bit resolution, capable of counting up to 16,384 motor shaft revolutions; and the AEAS-84AD-LBSC0 with 12bit resolution, counting up to 4096 revolutions.

In addition to reduced part count and assembly time, the AEAS-7000/AEAS-84AD offers other important features, including: 16MHz serial data output for high-speed applications such as servomotors operating at up to 12,000rev/min; the elimination of manual hunting for most and least significant bits (MSB and LSB); a reduction in code-wheel misalignment errors due to grey code correction to +/- 1LSB; a serial synchronous five-wire interface; and a wide operating temperature range of -20 to +85C.

Both the AEAS-7000 encoders and AEAS-84AD modules are available now through Agilent's direct sales channel and worldwide distribution partners. Request a free brochure from Avago Technologies ...

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