Product category:
Rotary Position, Tilt and Angular Sensors
News Release from: Danaher Motion | Subject: Incremental and Absolute optical encoders
Edited by the Engineeringtalk Editorial
Team on 08 November 2001
New low-cost incremental and absolute
encoders
Thomson Micron has announced a new line of high performance, low-cost Incremental and Absolute optical encoders which satisfy moderate to high-end accuracy requirements.
Thomson Micron has announced a new line of high performance, low-cost optical encoders, that satisfy moderate to high-end accuracy requirements The family comprises both Incremental and Absolute types that feature high resolution and low inertia
This article was originally published on Engineeringtalk on 17 May 2000 at 8.00am (UK)
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When compared to competitive models, the new Thomson Micron encoders offer users lower current consumption, which translates into lower operating costs.
The incremental encoders range in size from 30 to 48mm diameters, with resolutions up to 6000 lines per revolution.
They come standard with a 2 channel quadrature output plus an index, allowing count resolution to increase to 24,000 counts per revolution, and minimizing the homing sequence.
All of the incremental encoders have an additional standard feature of a TTL compatible line driver output, which boosts signal strength and increases immunity to noise over long cable lengths.
Two incremental encoders -- sizes 35 and 45mm -- have the added ability for commutating.
They are assembled with an integral PC board, which generates simulated Hall effect signals to initiate winding recognition for permanent magnet AC or DC servomotors.
The absolute encoders include 20 and 58mm diameter sizes and generate 8- and 10-bit binary code output signals, respectively.
The smaller size is designed to maximize the compact and lightweight nature of the product.
It incorporates a unique, conductive composite housing, which provides EMI shielding and protection for the assembly.
The larger size is also a compact design, but is intended more for industrial usage.
It incorporates larger radial bearings and a larger input shaft (10mm OD), which increase mechanical life and external load capacities.
The new Thomson Micron components enable quick installation through an assortment of optimized mounting arrangements.
Solid shaft outputs offer the ability to servo mount using synchro-type clamps.
Hollow hub outputs offer flexible slotted mounts and eliminate the need for a coupling.
All encoders come standard with a cable and connector.
Thomson Micron optical encoders are ideal for applications such as pick-and-place robots, inspection equipment, indexing/positioning devices, coiling/winding applications, paper conversion equipment, and gantry or elevator axes.
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