The paper gives experiment theory and experiment method of neutron source multiplication method for site measurement technology in the nuclear critical safety.

给出了核临界安全中监督现场的测量技术——源倍增法的实验理论和实验方法。

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It can be obtained the trace to the source of large direct current with self-balancing DC comparator through self-calibration circuit, addition circuit, compare circuit and multiplication circuit etc.

介绍了用自平衡比较仪通过自校、加法、比较和乘法等校准线路实现直流大电流量值的绝对溯源。

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