Optical fiber barrier finder
A technology of obstacle finder and optical fiber, which is applied in the direction of transmission monitoring/testing/fault measurement system, electromagnetic wave transmission system, electrical components, etc. It can solve the problems of inaccurate measurement results, affecting measurement results, and different sensitivities. The effect of simplicity, long test distance and small test result error
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[0014] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0015] Depend on figure 1 Visible: the present invention comprises: flange, optical coupler; Also comprise: CPLD; CPLD controls LD laser to send the optical pulse of different pulse width, and receives PD detector signal; CPLD is also connected with MCU; Described optical coupler is The light emitted by the LD laser is coupled with the light entering the flange, the light emitted by the LD laser is emitted to the flange through the coupler, and the light entering the flange enters the PD detector through the coupler.
[0016] Described MCU is also connected with LCD;
[0017] The CPLD is also externally connected with a high-speed clock circuit.
[0018] The present invention aims at the deficiency of the existing OTDR and the problems existing in the optical fiber fault finder, and provides a digital optical fiber fault finder with convenient...
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