Product category:
Optoelectronic Sensors, Switches and Receivers
News Release from: Avago Technologies | Subject: AEDA-3300 series
Edited by the Electronicstalk Editorial
Team on 12 April 2006
Optical encoder engines ease custom
build
Avago Technologies has expanded its family of incremental optical encoder engines that provide all of the elements required for easy installation in a customer-supplied housing.
Avago Technologies has expanded its family of incremental optical encoder engines that provide all of the elements required for easy installation in a customer-supplied housing The new encoders include versions with resolution performance from 5000 to 20,000 cycles per revolution
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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Avago AEDA-3300 series optical encoders reduce manufacturing and R and D costs, and eliminate the need for purchasing additional supporting components.
The AEDA-3300 series encoders are rated for operation in the -40 to +125C temperature range, so they are ideal for industrial applications ranging from servo and stepper motors to automation equipment, such as robotic arms and wafer-handling machines.
"Historically, housed encoders with resolutions above 10,000cycle/rev have been priced in the $500 range", said Chong Khin Mien, vice president for the Motion Control Products Division at Avago Technologies.
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"Our new incremental optical encoders provide twice the performance at less than one-fifth the price of traditional housed encoders".
"They offer significant performance and cost benefits to a wide variety of optical encoder market segments, including encoder manufacturers, motor manufacturers, system integrators and equipment manufacturers".
AEDA-3300 series optical encoders are now available in resolutions from 600 to 20,000cycle/rev, at speeds up to 12,000rev/min (ranges from 10,000rev/min for 6000cycle/rev to 1950rev/min for 20,000cycle/rev resolution), and operating frequencies up to 1MHz for resolutions less than 10,000cycle/rev, and 650kHz for resolutions between 10,000 and 20,000cycle/rev.
Using quadrature decoding with the highest-resolution version can provide a maximum of 80,000 pulses per revolution.
Outputs are two-channel quadrature with a third gated index channel, and the encoder comes with an integrated RS422 differential line driver.
Most optical encoders are supplied in several diameters, based on limitations in code wheel and interpolation technology (the higher the resolution, the larger the code wheel diameter).
The Avago AEDA-3300 series encoders are the same diameter regardless of resolution, with a total package size of 17mm diameter by 24mm high for the version designed for manufacturers of housed encoders.
This means that the encoder engine will fit within an 18mm diameter optical encoder package.
For motor manufacturers incorporating an optical encoder as part of a complete motor assembly, Avago also offers a version with a mounting plate (28mm diameter by 27mm high).
No special alignment tool is required, since the AEDA-3300 encoder is supplied in a package in which the code wheel has been pre-aligned to the encoder optics.
The integrated bearing stage also allows for a greater tolerance to customer shaft position variations, without affecting the encoder performance.
Samples and production quantities of the various configurations of the AEDA-3300 series optical encoder engines are immediately available from Avago's direct sales channel and worldwide distribution partners. Request a free brochure from Avago Technologies ...
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