X射线光谱仪电路板故障分析与处理

Fault analysis and treatment for circuit board of X-ray fluorescence spectrometry

X射线光谱仪是冶金行业实验室常用的元素定量分析仪器,在国内钢铁企业有着广泛的应用。以ARL9900型X射线光谱仪为例,介绍了该仪器12位样品盒转盘控制电路板复位电路去耦电容击穿故障的现象、分析和处理方法,光管发生器功率接口电路板上灌封变压器损坏的现象、检查和处理方法。通过这两个典型的电路板芯片级故障处理方法,为实验室精密仪器的芯片级故障修复提供一种思路,帮助企业快速恢复生产,节约备件成本。

X-ray fluorescence spectrometer is an instrument for quantitative analysis of elements in metallurgical industry laboratory,and it has been widely used in domestic iron and steel enterprises.The decoupling capacitor breakdown fault of circuit board reset circuit for rotary table control of 12-position sample box was introduced using ARL9900 X-ray fluorescence spectrometer as an example.This phenomenon was analyzed and the treatment methods of this instrument were discussed.Moreover,the encapsulated transformer damage on power interface circuit board of tube generator as well as check and treatment methods were also introduced.The analysis and treatments of two types of typical circuit board chip faults provided a new idea for the correcting of chip failures for precise instruments in laboratory.It was helpful to rapidly resume production and save spare parts cost.