The realization of optical fiber identifier based on embedded system

In the installation, commissioning of optical fiber, it is sometimes necessary for the identification of fiber so as to find certain fiber. The fiber can be identified by the analysis and comparison for light radiation. High-performance optical detector and mcu system play an important part in the analysis and comparison. At the same time, the use of decoder circuit composed of LM567 and the CD4051 can identify some modulated signals such as 270Hz, 330Hz, 1kHz, 2kHz which are added artificially. The performance of the optical fiber identifier is good in practical application.