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Optical fibre transmitting data coupling circuit

2016-10-12 05:31  
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Optical fibre transmitting data coupling circuit
The circuit shown in figure firstly converts input analog signal to frequency signal by V/F voltage-frequency converter, then it is sent to to optical fibers by light-emitting diodes. Length of optical fibre or polystyrene is decided by isolation voltage between digital or analog signal input end and photodiode.