Incremental encoders are preferable over absolute encoders in the case of cost-sensitive applications, repetitive motion, continuous power and high-speed requirements. Walker Machinery, a major distributor of digital encoders and DRO systems in Brampton, Ontario, explores these scenarios in detail in this blog.
When Are Incremental Encoders More Suitable Than Absolute Encoders?
Cost-Sensitive Applications
While absolute encoders are clearly superior from a precision perspective, incremental encoders emerge as the better choice for cost-sensitive applications. This is because incremental encoders are easier to manufacture mechanically and electrically, while having decent accuracy as well. So in cases where budget constraints are a major factor, incremental encoders are the better choice.
Repetitive Motion
Repetitive motions, where the exact positioning of the tool is not very important, can benefit from incremental encoders over absolute encoders. Conveyor systems, mixers, and spooling machines are great examples. The motion is unidirectional and continuous, only requiring the total distance covered. Such applications justify the use of incremental encoders.
Continous Power
The main issue with incremental encoders is that they have to be recalibrated in case of a power failure. However, if the power is continuous and the chances of failure are none, the incremental encoders will suffice. Alternatively, if an application allows re-homing or recalibration of the digital encoders, then incremental encoders work well in this case as well.
High-Speed Requirements
High-speed measurements are also ideally suited for incremental encoders. This is due to their inherent, simplistic design, which enables them to process high-speed pulse counts without lagging.
Conclusion
To conclude, incremental encoders are not as accurate as absolute encoders, but are still preferable in the cases mentioned above.
To learn more about digital incremental encoders, contact us at Walker Machinery today. As one of the biggest distributors of CNC controls, DRO systems and digital encoders in Brampton, Ontario, we serve major industries such as manufacturing, robotics, metrology and more. Contact us at 905-876-0890 today for more details.
FAQs:
What are the main resolutions to consider for incremental encoders?
The main resolutions to consider for incremental encoders include pulses per revolution, resolution and output type.
What are the major applications of incremental encoders?
The major applications of incremental encoders include industrial automation, robotics, printing, packaging and more.