用于气象观测的光纤结冰探测仪  

Fiber-optic Ice Detector for Meteorological Observation

作　　者：邹建红[1] 叶林[1] 安洁[2] 葛俊锋[1] 刘治军[1] 

机构地区：[1]华中科技大学控制科学与工程系,湖北武汉430074 [2]空军装备研究院航空气象防化研究所,北京100085

出　　处：《仪表技术与传感器》2012年第4期15-17,40,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金资助项目(60975030)

摘　　要：飞机结冰会对其飞行安全造成威胁,潜在结冰区可通过观测气象结冰条件来判断。设计了一种新型的光纤结冰探测仪,它主要由结冰传感器和解调器组成。其中,结冰传感器采用反射式和透射式光纤结冰传感器;解调器利用单片机MSP430实现数字取样积分算法,具有较强的微弱光信号检测能力。该探测仪借助探空仪升空,能够测量冰厚,且具有抗干扰、体积小、成本低、质量轻和功耗低等优势。试验表明,该探测仪具有灵敏度高、量程宽、线性度好等优点,且具备冰型区分能力,因而具有良好的应用前景。Aircraft icing would pose a threat to its flight safety.It relied on meteorological observation of icing conditions to determine potential icing areas.A novel fiber-optic ice detector,composed of icing sensors and a demodulator was proposed for the special application.Reflection and transmission fiber-optic icing sensors were used.The demodulator employed a MCU of MSP430 to implement digitally sampling-integrating algorithm and was capable of measure weak optical signals.With the help of a radiosonde,it could measure the thickness of ice.It had some good characteristics,such as effective resistance to interference,small size,low cost,light weight and low power consumption.Tests show its advantages of high sensitivity,wide measurement range and good linearity.With its unique ability of distinguishing between ice-types,this detector has a good prospect.

关 键 词：结冰 气象观测 光纤结冰探测仪 数字取样积分 冰型区分 

分 类 号：TH765.1[机械工程—仪器科学与技术]