It does this by fitting small piezoelectric acoustic sensors to parts of the structure to detect the particular frequency of noise caused by a crack in aircraft-grade aluminium.
把小型压电声传感器安装到这种构造部位上，检测由航空级铝材裂纹所致的特定频率的噪音，靠这样就能监测飞机裂纹。
The moment that sensors detect a hairline crack anywhere in the aircraft, microscopic nano-capsules containing a high-tech adhesive would be released to seal the fissure.
当传感器检测到飞机在任何时候的一个裂痕时，包含高科技粘合剂的微观纳米胶囊将释放粘合裂痕。
All of these tests are used to detect surface crack discontinuities.
所有这些测试是用来检测表面裂缝不连续性。
The first step is to detect the crack line.
第一步，缝隙线检测，是对缝隙线的粗略描绘。
An ultrasonic detector for wall rock crack is introduced which is able to detect coal mine underground wall rock looseness range and cracks.
介绍了一种超声波围岩裂隙探测仪，可用于探测煤矿井下围岩松动范围及裂隙情况。
An experimental cantilever beam example shows that the method can detect crack location with satisfactory precision.
对悬臂梁结构测试例子的分析表明，该方法能较好地识别具有单个裂纹结构的裂纹位置。
The strain gauges were attached near the tip of the notch in order to detect the time of crack initiation;
把应变片粘贴在裂纹尖端附近获得裂纹扩展时间；
The strain gauges were attached near the tip of the notch in order to detect the time of crack initiation;
把应变片粘贴在裂纹尖端附近获得裂纹扩展时间；
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