A multiplexer 27 selects either of the outputs of the counters 21 or 22 according to the pulse PA to decide the number of times of circulation, and outputs a signal representing a phase difference between the pulse PA and the pulse PB, based on the decided circulation number of times and...
In the case of a multipass encoder, the sensitivity for each interferometer arm is obtained by summing the sensitivities of every interaction between the beam in the interferometer arm and the moving scale grating. It can be seen inEq. (10.30)that the in-plane sensitivitydϕ/dxonly depends ...
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The main difference between demultiplexer and decoder is that a demultiplexer is a combinational circuit which accepts only one input while decoder is a combinational circuit which can accept many inputs and generate the decoded output.