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外媒:中国研发出世界最强反潜技术 探测精确度高

2017-06-25 15:10:17   参考消息

报道称,中国科学院21日在其网站的一篇文章中表示,“航空超导全张量磁梯度测量装置”已在上海研制出来并得到了专家小组的认可。文章援引专家们的话说,这种从空中运行的装置可实现地下矿体磁异常的精确定位。例如,它可以确定内蒙古地下深埋的矿物的位置,精确度达到世界上目前现有设备的同等水平。文章说,该装置将来也可安装在民用和军用飞机上,为资源探测、工程考古和国防等领域提供高性能技术装备和解决方案。

资料图:P3C反潜机上配备有磁异常探测器

中国地质大学遥感专家张志教授本人没有参与这个项目。他说:“这项技术可以用来探测陆地上的矿物,并且也可以在海洋中追踪到潜艇。”

据报道,自第二次世界大战以来,反潜机上就配备了磁异常探测器。这些设备监控金属物体对地球磁场造成的小干扰,分析数据并使用复杂的算法来计算物体的位置。然而,由于随着与源头之间的距离增大,磁信号的强度急剧下降,因此通常难以获得精确的位置。飞机必须飞得尽可能低,并且潜艇必须足够靠近水面,这种设备才能探测得到。信号的强度也可能因为其他因素而降低,例如潜艇由较少的铁磁材料制成。

上海交通大学微纳科学技术研究院的雷冲博士表示,中国的设备与传统设计相比至少有两个不同之处。

雷冲说,第一个不同之处是该设备使用了大量探测器。有了这个“阵列”,它收集的数据多于传统的探测器,后者往往只使用一个天线。雷冲也没有参与该项目。

新的磁异常探测技术还使用了由液氮冷却的超导计算机芯片。这个超冷却的环境显著提高了设备对信号的敏感度,而这些信号可能太弱,传统设备无法探测到。

雷冲说,现在称中国在磁异常探测技术方面处于领先地位还言之过早。他说:“美国军方可能已经开发出类似设备,只不过秘而不宣。”

责任编辑:穆启春 CN063
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