CAJ | 학술논문

为实时获取光纤内光功率信号,基于LabVIEW虚拟仪器编程语言,采用USB总线技术,结合光接收机和NI数据采集卡USB-M6251构成的硬件平台设计了新型的高速采集系统.该系统克服以往光功率信号采集系统采样率低、单通道显示、界面交互能力弱、便携性差等缺点,实现了采样参数可控的双通道实时采集、显示、保存光功率信号等功能.该系统开发效率高,并通过实验证明其具有良好的人机交互能力,可靠性高,实用性强,能为各类光纤通信系统提供光功率信号监测功能.
위실시획취광섬내광공솔신호,기우LabVIEW허의의기편정어언,채용USB총선기술,결합광접수궤화NI수거채집잡USB-M6251구성적경건평태설계료신형적고속채집계통.해계통극복이왕광공솔신호채집계통채양솔저、단통도현시、계면교호능력약、편휴성차등결점,실현료채양삼수가공적쌍통도실시채집、현시、보존광공솔신호등공능.해계통개발효솔고,병통과실험증명기구유량호적인궤교호능력,가고성고,실용성강,능위각류광섬통신계통제공광공솔신호감측공능.
In order to real-time get optical power signal transmitted in optical fiber，a new high-speed acquisition system is designed.Based on LabVIEW virtual instrument programming language and USB technique, the system combines an optical receiver with an USB DAQ card USB-M6251 of NI Company．It overcomes the disadvantages of the traditional system, such as low sampling rate，single channel display，insufficient man machine interface function and poor portability, and realizes the real-time acquisition，display and storage of optical-power signal in dual channels with sampling parameter controllable.Experiments prove that the optical power signal acquisition system is reliable and practical，and it provides a good man machine interface. It can be used to monitor the optical power signal in various optical fiber communication systems.