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Optical Encoders: Precision Motion Sensing in Modern Technology
An optical encoder is a precision device used to convert motion into digital signals. It typically consists of a rotating disk with transparent and opaque segments, a light source, and a photodetector. As the disk spins, the light beam is interrupted, generating pulses that correspond to movement. These pulses are processed to determine position, speed, or direction. Optical encoders are widely used in robotics, industrial automation, and CNC machines for accurate control. They offer high resolution and reliability compared to mechanical systems. However, they can be sensitive to dust and contamination, requiring proper sealing and maintenance in harsh environments.
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