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软故障是指非元器件功能完全丧失而引发的无规律故障。在医疗仪器维修中软故障不同于元器件损坏产生的故障,可以直观查寻、判断。由于其时隐时现,没有规律性,易使维修人员捉摸不定,无从入手,从而耗费掉很多时间和精力,设备得不到及时有效的修复,直接影响临床或医技科室对患者的诊疗时效和准确判定,甚至危及患者生命。因此,在电子类医疗仪器维修实践中,探讨软故障的成因和解决办法一直是专业维修人员致力追求的重要目标之一。笔者结合自己多年工作实践,着重从以下5个方面加以阐述,供同道参考。
Soft faults are irregular faults caused by the complete loss of non-component functions. In the maintenance of medical equipment, soft faults are different from those caused by damage to components and can be intuitively searched and judged. Because it is now hidden, there is no regularity, easy to make maintenance personnel uncertain, no way to start, which takes a lot of time and effort, equipment can not be timely and effective repair, directly affect the clinical or medical technical staff for the time And accurately determine and even endanger the lives of patients. Therefore, in the maintenance practice of electronic medical instruments, the discussion of the causes and solutions of soft faults has always been one of the important objectives pursued by professional maintenance personnel. The author combines his many years of work practice, focusing on the following five aspects to be elaborated for reference.