简述了S4-X射线荧光光谱仪的工作原理和X光管高压发生器的控制原理,讨论了S4-X射线荧光光谱仪高压不能加载故障的多种因素,并根据每种故障的产生原因,提出排除故障的方法.%Introduced S4 - XRF working and X ray HV controlling principle. Analyzed various factors on HV controlling circuit that may induce a HV failure. Repair methods were proposed for each possible cause.
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