active detection meaning in English
主动探测
Examples
- Based on the advantage of laser multi - spectrum active detection technology , it can be used in broad field such as control and guide , target identifying , terrain matching and other field that laser active detection can be used
鉴于激光多光谱主动探测技术的优势，这项技术将在制导、目标识别、地形匹配及其它激光主动探测领域具有广泛的应用前景。 - Active detection systems , such as radar and sonar , have encountered more and more threaten in modern electronic warfare and information warfare . passive location and tracking system , which uses electromagnetic wave emitted by target , has been proved its merits of self - hiding and far - distance detecting and becomes more and more important
现代电子战和信息战条件下,雷达和声纳等有源探测系统受到越来越多的威胁,利用目标辐射电磁信息的无源定位系统由于其自身隐蔽和探测距离远等优点而日显重要。 - This study adopts active detection technique based on lamb wave to monitor damage in composite materials . pzt ceramics with the diameter of 8mm are bonded on the surface of fiberglass - reinforced composite material acting as both actuators and sensors to generate and collect lamb waves . the waves emitted interact with discontinuities and experience a change in their propagation characteristics when damage is generated
本文采用lamb波主动监测技术，利用粘贴在复合材料板表面的压电元件，通过选择恰当的激励信号，激励出可进行lamb波分析的主动监测信号，进而对监测信号进行分析及模式处理，初步实现了二维结构的损伤定位。 - In analyzing the neutron active detection , the neutron multiplication in the nuclear warheads induced by outer neutron source with different neutron energys is studied with numeral simulation , and the feasibility of through counting neutrons to determine the presence of high enrichment uranium ( heu ) in nuclear warhead has been proved . the method of detecting the warhead which contains heu pit by counting the released neut rons whose energy is higher than that of source neutron is studied . the feasibility of this method has been studied
对几种主动探测核弹头方法进行的研究中，首先对不同能量各向同性外源中子照射核弹头的中子增殖行为进行了数值模拟，检验了用外源中子照射核弹头后，通过测量瞬发中子在核弹头中的增殖量，来证明核弹头中高浓铀存在的可行性；研究了用能量低于1mev的外中子源照射核弹头，用测量核弹头中裂变产生的高于源中子能量中子数的方法探测核弹头，通过数值模拟分析了可行性。 - Different characteristic parameters fitting for different damage detection methods are extracted from the filtered sensors signal by hht technology . at last , the location and the degree of damage in the composite material can be determined by using defferent damage detection methods . this study adopts active detection technique based on lamb wave to monitor damage in composite materials
并且针对每种损伤定位方法选择有效的描述结构损伤的特征参数,利用四种不同的方法对结构进行损伤定位和损伤程度的识别,通过实验证明,这四种损伤识别方法均能有效准确的识别出损伤位置和损伤程度。