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对某铀矿山物探工作中使用的γ闪烁辐射仪、定标器等进行了随机取样,以综合考查取样仪器投入生产一年内所发生的故障次数,计算了仪器元器件和整机的现场失效率、整机平均无故障工作时间和一个工作日的可靠度。同时估算了仪器的年检修工作量和费用。 考查结果表明,目前这些仪器的可靠度较低,而现场失效率较高。因此,检修工作量大和寿命周期费高。为此,除建议仪器生产厂应提高仪器的可靠度外,对已在用的仪器提出了若干加强和改进现场检修的具体措施,如严格筛选元器件,加强预修性检修和改进性检修、降级使用元器件等,并列举了实例证明其效果。
The gamma scintillation radiometer and scaler used in the geophysical prospecting work of a uranium mine were randomly sampled to comprehensively examine the number of failures occurred within one year after the sampling instrument was put into production and calculate the field failure rate of the instrument components and the complete machine , The whole machine mean time to failure and a working day of reliability. At the same time estimated the annual maintenance workload and cost of the instrument. Test results show that the current reliability of these instruments is low, but the high failure rate on the scene. Therefore, the maintenance workload and life cycle costs high. To this end, in addition to the proposed equipment manufacturer should improve the reliability of the instrument, the instrument has been put in place a number of specific measures to enhance and improve on-site maintenance, such as rigorous screening of components and components to enhance pre-repair and improve the overhaul, Downgrade the use of components, etc., and cite examples to prove its effectiveness.