美国科研人员最近开发出一种基于微波雷达的便携式探测系统,可探测废墟下9米深处被埋者的心跳。这套系统有望明年春季进入市场。该系统由美国国土安全部和美国航天局联手开发,其英文简称为FINDER,即“发现者”。测试表明,它除了能探测废墟下被困者的心跳外,还可探测位于6米厚的实心混 US researchers recently developed a portable detection system based on microwave radar to detect the heartbeats buried at depths of 9 meters beneath the rubble. This system is expected to enter the market next spring. Developed by the U.S. Department of Homeland Security and NASA, the system is abbreviated as FINDER, or “Finder”. Tests have shown that apart from being able to detect the heartbeat of trapped persons under the rubble, it can also detect solid mixing at 6 meters