Incremental Encoders
Incremental Encoders: precise, fast, and reliable
Incremental encoders are electromechanical devices designed to detect rotary or linear movements with high precision, emitting pulses on channels A and B in quadrature that indicate both displacement and direction. Some models also include a Z channel (reference index) or fault signals for more advanced usage.
These encoders do not provide absolute position but require an electronic interface capable of counting pulses and determining instantaneous position.
Thanks to the ‘Express 48’ service, it is possible to receive customized models in just 5 days from the order, subject to availability of the components and the Eltra encoder models you need.
Ideal for high-speed applications and dynamic control, incremental encoders are used in industrial automation, robotics, motion control, CNC, and material handling, thanks to their ability to provide real-time data on speed, acceleration, and relative position.
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Frequently asked questions
What is the difference between incremental and absolute encoders?
The main difference between an incremental encoder and an absolute encoder lies in how the position is detected.
- Incremental encoder: generates a specific number of pulses per revolution, for example, 500, 1,000, or 2,000. The position is calculated by counting the pulses from a reference point. It is suitable for measuring speed, rotations, and relative displacements.
- Absolute encoder: provides a unique value of the position, allowing it to be recognized even after a power interruption, without having to repeat the zeroing procedure, depending on the model's characteristics.
The choice depends on the application: for speed control and relative displacements, an incremental encoder may be sufficient; when it is necessary to know the position directly, an absolute encoder may be preferable.
ATTI offers Eltra encoders for industrial automation and motion control applications.
Check the categories of the ATTI catalog:
to compare the features of the two types and identify the solution most suitable for your application.
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