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Encoders
Until recently, dreams of robots that will do tedious and hard homework for us only recently appeared in films. The current technology, however, has overtaken the cinema and more and more film productions have become a replication of the present reality that surrounds every of us. Modern sci-fi devices now can be increasingly found just in our homes, not scientific labs.
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Encoders - FAQ
Encoders are rotational-pulse converters. They generate impulses under the influence of shaft rotation. They convert motion into an electrical signal, so it can be used to determine angular displacements, rotational speed or linear displacement. They are divided into incremental and absolute.
The most important parameters of encoders useful in electronics and robotics are resolution, i.e. the number of pulses per revolution, housing size, shaft or hole diameter, mounting method, supply voltage, output signal and its output method.