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Understanding Encoders
Wednesday, August 29, 2018

Encoders are important components of motion controls. Encoders are what provide the precise sensing capabilities to the motion control system. You can think of the encoders as eyes and ears of the motion control systems that provide with seamless automation.

What Do Encoders Exactly Do?

Encoders also known as transducers will judge and sense the position in physical quantities and convert them to electrical signals to effectively communicate with the motion controller.
The encoders are able to communicate the location, the direction, the path and velocity of the concerned object to the motion controller.

The modern and advanced encoders can also measure other physical quantities like the angle. Knowing these precise values can really benefit the industries that have incorporated automation in their systems.

Different Types of Encoders

Encoders can be broadly divided into two main categories, the linear or the rotary encoders. Each of these encoders then can be either absolute or incremental encoders. The different technology used can also further help classify the different types of encoders. Encoders can either use light (optical encoders) or electromagnetism to judge the position of the subject.
  • Linear Encoders are used to determine the one dimensional distance between the point of reference and the subject.
  • Rotary Encoders are used to determine the angle of a rotating object. This helps in finding the angular position of the subject.
  • Position Encoders will tell the absolute or the incremental position of the subject from the point of reference.
  • Absolute Encoders tell the absolute position of the subject by using a reference point at any given instance. It measures the angle of the rotating shaft and tells the position.
  • Incremental Encoders on the hand will tell you the general motion of the object as it increments the digital signal of the position of the subject.
  • These are some of the broader classification of the different types of encoders.

The Advantage of Encoders
  • Encoders are precise and reliable, and can provide with quick and accurate feedback that will definitely improve efficiency.
  • There small and compact size makes them very accommodating in every situation. You do not need to worry about finding place to adjust them.
  • They are a highly cost-effective, and in the long run can make a good investment ensuring that you are reaping great benefits.
  • They can easily be incorporated into the existing system without much hassle. So anyone wanting to make the transition can easily do so.

One point to note is that, poor maintenance, and external magnetic and light source interferences can impede proper functioning.

Encoders are the most crucial element of automation and motion control. To ensure that you are benefitting to the fullest from these systems, and your systems are working optimally, you have to get the right equipment. The different encoders are best suited in diverse industries and should be selected based on the different scenarios. To get the best advice and the finest, high quality equipment, you should head to Rilco Industrial Control. Rilco Industrial Control does not compromise on quality and is committed to serve their customers through utmost dedication.



 
 
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