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Celera Motion Launches New Optical Encoder Series

CeleraMotion AuraSeries400x275


January 26, 2021

Celera Motion, which develops precision motion component and subsystem solutions, has announced the Aura Absolute Chip Encoder Series to its line of precision rotary and linear optical encoders with MicroE technology.

Aura uses a short wave-length LED for precise absolute position decoding, Celera said in a statement. An incremental scale track and advanced sensor produce pure sine wave signals, enabling high-resolution interpolation with run speeds greater than 80k rpm. “Generous alignment tolerances for easy installation, combined with high repeatability and accuracy make Aura the preferred encoder for the most demanding applications,” the company said.

Celera added that eccentricity, caused by off-center scale mounting and bearing runout, is the largest source of angular error. To compensate for the error, two encoders are often employed, but this increases cost and power consumption. Aura solves the problem with a built-in compensation algorithm, eliminating the need for a second encoder.

“Customer demands continue to increase for higher levels of repeatability and accuracy,” said Mike Mainvielle, vice president of product management and marketing at Celera Motion. “Aura’s ease of installation and absolute precision feedback allows it to deploy faster and provide reliable performance when space is a premium: therefore, this translates into saving time and money.”

Additional benefits of the Aura include:

  • Absolute position feedback for high performance, high volume designs
  • High resolution and accuracy for precision control needs
  • Wide alignment tolerances that provide ease of integration
  • Low power dissipation for tight temperature budget applications
  • Connectivity that meets industry standard interface requirements: BiSS-C, SSI and SPI
  • AqB plus index, which provides additional incremental data to be used as secondary position information

Bedford, Mass.-based Celera said the Aura would be an optimal solution for high-volume OEM applications, including surgical robots, cobots, robot joints and grippers, exoskeletons and wearables, and semiconductors. 

The Aura encoder can handle scales ranging from 16 mm OD to 45 mm OD, and two standard scale sizes are available: OD 18 mm / ID 7 mm and OD 33 mm / ID 21 mm. However, custom scales are also available through working with the company. More details on the Aura Series are available here.

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