Celera Motion Unveils Multiturn Inductive Angle Encoder

CeleraMotion Multiturn400x275

November 17, 2021

Celera Motion has announced the latest addition to its IncOder and Ultra IncOder series – the Multiturn IncOder inductive angle encoder. The new encoders offer precise angle measurements for applications that include robot joints, cranes and antenna masts.

Using an inductive technique, the non-contact Multiturn IncOder enables precise and reliable absolute angle measurements over multiple revolutions, even in harsh environments. The company said it is easy to install this in several applications. In addition to the joints, cranes and antenna masts, the Multiturn IncOder can be installed in servo motors, linear stages, cartesian robots, and wind turbines.

“Celera Motion’s IncOder series offers the industry’s most advanced angular measurement capabilities, providing precise, reliable measurements that our customers have come to rely upon,” said Mike Mainvielle, vice president of product management and marketing for Celera Motion. “Demand is growing for these innovative products, so we’re excited to introduce the Multiturn IncOder to the series. It is ideal for more compact and lightweight systems and performs extraordinarily well, even in the toughest environments.”

Introduced in 2019 as a high-accuracy expansion of the original IncOder series, the Ultra IncOder series features absolute, inductive encoders that provide precision angle measurements in harsh environments and applications where fit-and-forget reliability is critical, the company said.

The Ultra IncOder series is available in sizes ranging from 75 mm to 300 mm. Each unit is pre-calibrated and offers up to 19 arc-seconds accuracy, depending on size. Higher accuracy units enable precise positioning and optimal system performance, Celera Motion said.

The Multiturn IncOder is an absolute inductive encoder with non-volatile turn count storage, designed for applications where motion exceeds one turn, such as rotary-to-linear motion and geared rotary systems. The low-profile ring encoder with a large through-hole makes it suitable for more compact and lightweight systems. Unlike traditional multiturn encoders, the gearless design is wear-free and does not require a battery backup supply. Celera said it integrates easily with Everest and Capitan servo drives, and can be directly mounted without special couplings or high tolerance.

The system measures the absolute angle position with a single turn, and also monitors the number of revolutions. Turn count is always retained, even during loss of power events. Other benefits include:

  • An adjustable zero set function, simplifying installation and setup;
  • A bearingless and gearless design, making the encoder wear-free and maintenance free;
  • Non-volatile turn-count storage so the turn count is retained through power loss;
  • A rugged design that is insensitive to foreign matter, allowing it to operate in extreme environments;
  • SSI, BiSS-C, ASI (asynchronous serial), SPI Comms for integration with a range of servo drives and controllers;
  • Multiple size and mounting formats for increased design flexibility;
  • A low-profile form factor and large bore, ideal for more compact and lightweight systems.

The sensor offers up to 21 bits single turn resolution and 12 bits multiturn resolution (8 bits for SSI options), and is available as part of the Midi IncOder and Midi Ultra IncOder series.

More details about the Multiturn IncOder can be found here.

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