在仪器误差符合性测试过程中,需要通过测量结果给出被测仪器设备合格与否的判定.由于测量不确定度的存在,会导致误判的可能,从而给用户和厂家带来决策风险.为了确保厂家风险(PR)及用户风险(CR)可控,提出了过程能力指数(PCI)、测试不确定度比(TUR)、保护带允许误差比(GTR)综合控制方法,建立了这3个参数与厂家风险和用户风险间的关系,并通过图形化方式给出了实际测试过程风险控制准则.仿真结果表明,在一定的过程能力指数下,选择适当的不确定度比和置信区间保护带,可以满足CR和PR期望值要求.%During verification process of instrument error, the test results decide UUT qualified or not. Due to the presence of measurement uncertainty, a wrong decision may be made, so consumer and producer decisional risk are caused. To keeping the consumer's risk(CR) and producer's risk (PR) below the given target values, a comprehensive control method for setting both the process capability index ( PCI) , measurement uncertainty ratio ( TUR ) and gauging tolerance interval ratio(GTR)in conformance testing procedures is proposed. The relation between the three parameters with CR and PR is established. By graphical configuration mode,some effective guidelines for conformance testing design are described. The results of simulation show that PR and CR can be kept below the given target values by suitably setting both the TUR and GTR with a certain PCI.
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