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Absolute Encoders

Posital updated its portfolio of IXARC magnetic encoders with the addition of single and multiturn absolute encoders.

Xarc Single And Multiturn Absolute Encoders

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Posital’s new encoders come with improved performance (up to 18-bit resolution), improved energy efficiency, and an optimized Wiegand package featuring a newly developed ASIC that functions as the logic controller for the battery-less multiturn system.

A gamechanger for the new generation IXARC magnetic encoders is the switch from Hall-effect sensors used for rotation sensing to more advanced TMR (tunneling magneto resistance) technology.

Another key innovation applied to the new IXARC encoders is the introduction of a new ASIC, designed in-house to support battery-free rotation counting in multiturn models. Each time the encoder shaft completes a rotation, a Wiegand sensor connected to the ASIC provides both a signal pulse and enough electrical current to energize the counter circuitry in the ASIC. With this self-powered counter system, every shaft rotation is accurately recorded in non-volatile memory – even if rotations occur when system power is not available. No backup batteries are required.

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