欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
介绍了一种基于红外前向散射原理的能见度测量仪的原理和测量方法。对其检测电路设计中的技术难点——发射光功率稳定和微弱信号的检测放大进行了讨论并提出了相应的解决方案。通过发射端双光路闭环负反馈回路设计和接收端锁相放大电路的应用提高了仪器稳定度和测量精度。并制作了实验样机模拟现场环境验证了电路实际效果。
英文摘要：
A method to detect the visibility, which is based on the principle of infrared foreword scattering, has been introduced. Discussions and solutions to the problems about the stabilization of emission light power and detection of weak signal have been illuminated. It is explained that the precision and stabiliza- tion of the visibility meter were improved by double-negative feedback closed loop circuit in emitting side and lock-in amplifier in receiving side. And such improvements have been certified by experiments.
同期刊论文项目
同项目期刊论文
期刊信息
位置：