In order to understand the accuracy of the results of measuring the balance coefficient of elevators by the secondary loading current method,a path to analyze the accuracy of the uncertainty evaluation of the balance coefficient measured by this method is proposed:the measurement model is established according to the principle of the secondary loading current method,and the uncertainty of class A and class B standards in a measurement example is evaluated by analyzing the uncertainty source of the measurement process affecting the balance coefficient of the elevator,and finally the extended uncertainty of the elevator balance coefficient is obtained.Finally,the range of the measured elevator balance coefficient under 95%confidence is obtained,and relevant suggestions are made for the measurement process.
Elevator balance coefficientSecondary loading current methodMeasurementUncertainty
NETL
NSTL
万方数据
