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  • Reflective Three-Channel Encoder (.pdf)
    The AEDR-850x encoder is the smallest three-channel optical encoder with digital outputs in the market, employing reflective technology for motion control purposes. This article describes the recommended resistor biasing needed, the codewheel design for the special index track, and the proper
  • Is a Modular Encoder Right for Your Application?
    Modular, or "Kit", encoders are a specialized category of rotary encoders. The difference between a modular encoder and a standard. encoder is that the modular encoder does not incorporate internal bearings into its design. Instead, it relies on the host, typically a motor,. to supply
  • Maximize Motor Efficiency with Encoder Feedback
    continuous torque output and power efficiency from a PMBDC motor one must use the proper feedback and control method that allows the Drive to keep each phase-current "in phase" with the motor's corresponding back EMF/Torque function(s). Hence, the purpose of this paper is to discuss how optical encoder
  • Industrial encoder integrates bearing and sensor functions
    Fafnir Encoder Survivors measure speed and position of rotating shafts while providing the functions of a housed bearing. The units are available in pillow-block and flanged designs with two and four-bolt configurations and setscrew shaft retention. A new family of encoders provides speed sensing
  • Applying Encoder Communications to Your Design
  • Implementation of a DSP-based 20-bit High Resolution Quasi-Absolute Encoder for Low-Speed Feedback Control Applications - White Paper (.pdf)
    Absolute encoders using optical technology often face limitations in resolution and size. For example, to achieve a higher resolution of up to 16-bits, the absolute encoder has to be combined with an incremental pattern that is strongly interpolated with an external hardware and sig¬nal
  • Motion Control and Encoder Technology: A Tutorial
    Sensors and encoders are used everyday in manufacturing environments and high precision equipment to monitor the proximity or presence of an object, as well as the position, distance, direction, and speed of rotating equipment. Encoders enable design engineers to control motion by providing
  • Agilent: Five Hints for Debugging Microcontroller-Based Designs
    Hint 1: Verifying quadrature encoder signals in a motion control system Using a mixed analog and digital signal oscilloscope to simultaneously monitor the signal levels of a quadrature encoder, an LS7083 converter chip, and a motor's positive lead. Hint 2: Implementing a simple voltage follower

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