摘要
随着空间碎片数量的不断增加,载人航天器在轨泄漏定位问题成为一个亟待解决的问题。文章研究了一种基于圆形超声阵列传感器的在轨泄漏定位方法,利用互相关原理计算泄漏超声信号传播到不同测试单元的时间差,从而确定泄漏所在的方向,并根据三角定位方法确定漏孔的具体位置。
In view of more and more debris in space,it is an important issue to locate the leak point in manned spacecraft cabin.In this paper,a leak detection method is developed for spacecraft on orbit using circular ultrasonic array sensors.The time difference of the ultrasonic signal reaching different ultrasonic units is calculated by cross correlation,and then the direction of the leak is determined.The leak location can then be identified by triangulation with three ultrasonic array sensors.
出处
《航天器环境工程》
2011年第3期274-276,共3页
Spacecraft Environment Engineering
基金
总装备部"十一五"预先研究项目(编号:513200901)
关键词
在轨检漏
超声传感器
互相关
on-orbit leak detection
ultrasonic sensor
cross correlation
