Encoder Solutions for Motion Control Applications

August 30, 2019

Quantum Devices as an optical rotary encoder supplier will be able to evaluate your motion control application and offer a solution for your motion control application.

Some applications that require rotary encoders:

• Aerospace & Defense
• Automated Guided Vehicles (AGV)
• Autonomous Mobile Robots (AMR)
• Conveyor Applications
• Elevators
• Factory Automation
• Galvanometer Scanners
• Industrial Controls
• Medical Devices
• Off-Highway Vehicles
• Oil & Gas
• CNC Machining
• Pulp & Paper Mills
• Robotics
• Rotating Radar Platforms
• Servo Motors
• Steel Mills
• Stepper Motors
• String Potentiometers
• Wood Processing

Mainly used in industrial and commercial applications, a rotary encoder, or rotary transducer, is an electromechanical device that is used to measure and convert rotary, or linear motion, into a digital signal. These devices are placed on shafts to help track and generate digital position and motion data. Encoders also have optional feedback (halls) to help ensure synchronization of a motor stator and rotor positions, also known as motor commutation.

An optical rotary encoder is comprised of an LED (Light Source), Photodiode (Light Detector), Code Disc and Signal Processors.

The Light Source passes through the Code Disc. This Code Disc can be made of etched metal, Mylar, or metal on glass. The Code disc has opaque and transparent segments which interrupt the light source. The interruption of the light source is detected by the photodiode sensor and those signals are processed and digitized for use by external control devices.

This signal helps to determine position and RPM that is used to validate the actual location and/or speed at which a machine or motor is running.

Information Needed for Encoder Solutions

A supplier will require specific information in order to recommend an appropriate encoder for your application. The information needed can include the following:

• Resolution/Line Count
• Commutation: Yes or No
• Number of Poles
• Shaft Style: Hollow or Solid
• Shaft Diameter
• Mounting Style
• Bolt Circle Diameter
• Operating Voltage
• Max RPM
• Operating Temperature Range
• Maximum Temperature
• If this is an existing application, what is the current brand and model number?
• General Description of Application

Quantum Devices, Inc. is the premier encoder supplier that proudly manufactures their products in the USA. Contact Quantum today for an evaluation of your application.