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应用计算机数据处理技术及快速高精度Ａ／Ｄ转换器，把淹没在超低噪声放大器的固有噪声中的超导临界弱电压提取出来。为高温超导材料Ｊｃ参数的瞬间测量提供强有力的手段。
Application of computer data processing technology and fast high-precision A / D converter, submerged in the intrinsic noise of the ultra-low noise amplifier in the superconducting critical weak voltage extraction. It provides a powerful method for instantaneous measurement of Jc parameters of HTS materials.