摘要
飞机结冰严重影响飞行安全,现有结冰传感器都只在飞机结冰后才进行告警。利用声表面波结冰传感器及声表面波温度传感器设计了飞机结冰预先告警系统。研究了声表面波结冰传感器的原理,并设计了传感器信号的告警逻辑关系,通过等效电路对无线声表面波冰传感器进行仿真。仿真结果表明,声表面波飞机结冰预警系统可用以降低结冰信号的虚警率。
The icing has great impact on aircraft safety. The icing sensors being used on aircrafts right now can only give an alarm after icing. An aircraft icing pre-alarm system was designed based on SAW ice sensor and SAW temperature sensor. The principle of SAW ice sensor was studied, the sensors＂ signal pre-alarm logic connections were designed. The wireless passive SAW ice sensor was simulated using the equivalent circuit. The simulating results indicate that the aircraft icing pre-alarm system could be used to reduce the fake icing alarm rate.
出处
《压电与声光》
CSCD
北大核心
2008年第5期532-534,共3页
Piezoelectrics & Acoustooptics
关键词
飞机结冰
声表面波
结冰传感器
温度传感器
预警
aircraft icing
surface acoustic wave （SAW）
ice sensor
temperature sensor
pre-alarm
