中国SQUID重力探测器精度世界领先

中国研究人员上月发布了一种使用超导量子干涉仪(SQUID)的重力探测器,其精度世界领先,且体积紧凑,可在实验室外使用。该设备据中国科学院网站报道,能测量微小重力变化,用于探测物体,并可能扩展军事应用。

中国研究人员开发的重力探测器利用SQUID技术,通过测量微小重力变化来探测物体。该设备据中国科学院(CAS)网站报道,将重力梯度测量噪声——如地震振动等外部干扰——降低到仅次于千米级引力波探测器的水平。

这款探测器体积相当于一个办公室隔间,而美国激光干涉引力波天文台(LIGO)等大型设备则使用相距4公里(2.5英里)的镜子研究宇宙。该紧凑设计使其适用于野外环境。

开发团队表示,该仪器可用于科学研究和探测地下资源。同时,它使中国更接近探测巡逻核潜艇的能力,如美国俄亥俄级核潜艇。现有潜艇探测方法包括声纳、磁异常探测和雷达,但这些均可被规避,而重力无法掩盖。

CAS报告强调,该技术在噪声抑制方面的进步具有世界领先精度,可能扩展军事应用。

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