本文通过对仪器设备正常使用寿命周期等测量特性的分析,重点针对多功能多量程类型仪器的期间核查规程要点问题,以田口玄一正交试验法选取核查参数及量程对象的适宜组合;利用马尔可夫链分析减小因测量点的数量分布所引起的传递误差影响;同时再辅以案例说明,运用最大似然法确定最佳核查间隔的过程;从而研究探讨实现期间核查的技术可靠性与经济合理性双控目标的有效方法。 Based on the analysis of measurement characteristics such as the normal life cycle of instruments and equipment, this paper focuses on the key points of the verification procedure during the multi-function and multi-range type instruments, selects the appropriate combination of verification parameters and range objects with the Taguchi method, Coverage analysis reduces the influence of transmission errors caused by the number distribution of measurement points. At the same time, it supplements the case description and uses the maximum likelihood method to determine the optimal verification interval. Then it studies the technical reliability of verification during implementation and An effective way to double control objectives of economic rationality.