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The US NIST and a really mini-sensor:

机译:美国NIST和真正的微型传感器:

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Boulder,Colorado.A tiny sensor that can detect magnetic field changes as small as 70 femtoteslas-equivalent to the brain waves of a person daydreaming-has been demonstrated at the National Institute of Standards and Technology (NIST).The sensor could be battery-operated and could reduce the costs of non-invasive biomagnetic measurements such as fetal heart monitoring.The device also may have applications such as homeland security screening for explosives.
机译:美国国家标准与技术研究院(NIST)展示了一种微型传感器,该传感器可以检测到70飞特的磁场变化,这相当于做白日梦的人的脑电波。该传感器可能是电池,该设备可以运行,并可以减少非侵入性生物磁测量(例如胎儿心脏监测)的成本。该设备还可以用于诸如爆炸物的国土安全检查等应用。

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