In order to study the relationship between optical signal and cutting quality,an on-line monitoring system with cut front radiation as the criterion for laser cutting was built up.
为了研究激光切割过程光信号与切割质量的关系,搭建了以切割前沿光辐射作为检测参量的实时检测系统,对切割前沿光辐射的时、频域信号进行了试验研究,得到了不同参数下光信号的变化规律。
These methods were high-speed camera and optical signal monitoring.
利用高速摄像及光信号监测两种手段对等离子体的动态变化过程及其对焊接稳定性的影响进行了深入的研究。
The test methods of the burst-mode optical signal in the PON system were studied.
针对GPON系统以其大带宽和高效率,越来越成为光纤宽带接入网的首选方案的现状,对PON系统的突发光信号测试方法进行了研究,通过分析PON系统的突发光信号特点,指出了目前测试技术中存在的一些问题,提出了突发光信号误码测试与光功率测试的具体设计方案。
Researching on OSNR Monitoring Technique Based on Polarization-Nulling Method;
偏振分光法光信噪比监测技术研究
Analysis of OSNR and system design of optical ring network;
光环形网的光信噪比分析与系统设计
The OSNR calculating of DWDM system using cascade EDFAs;
DWDM系统中级联EDFA光信噪比计算
The working mode and noise in fluorescent signals detecting circui2ts by using photodiode were analyzed in this paper.
对采用光电二极管的荧光信号接收电路的工作模式和噪声进行了分析,论述了输入失调和暗电流的补偿方法,深入讨论了防泄漏措施、输入管脚的“护卫”、隔离技术和输入管脚的悬置引出技术、PCB板的清洁和隔离涂敷、屏蔽和滤波等技术。
The necessity of processing optical information for traditional X ray device has been stated,and the methods used to realize digital image has been outlined.
叙述了对X线胃肠机的光信息进行处理的必要性和X线胃肠机的图像数字化方法概况。
A look into the 21st century indicates,with the development of optical information society and the broad application of Photon technology,it will have a great impact on human life.
展望21世纪,随着以光信息为代表的信息化社会的发展,人类将迈进光子时代,光子学的发展和光子技术的广泛应用将对人类生活产生巨大影响。
In this paper,we have briefly introduced the status of optical information and photonics technology lab of Tianjin Polytechnic University,and comprehensively introduced the goal,the plan and the content of construction during the period of "11th Five-Year".
本文简要介绍了天津工业大学光信息与光电子技术实验室的现状,并对实验室在"十一五"期间的建设思路与目标以及建设内容等进行了全面的介绍。