Method for testing measurement devices utilized for operational-test measurement of injection valves of combustion engine of motor car, involves determining mean values/medians of detected measurement values of variable of similar devices

摘要

The method involves providing a measurement device to detect measurement values of a measured variable i.e. volume flow, of similar devices (20) to be tested. The device is calibrated as a reference measurement device (12). A set of measurement devices (14) is provided to detect the measurement values. Mean values or medians of the detected values are determined for successive time periods for the reference device and set of measurement devices, where a value of zero lies outside of a confidence interval for one of the time periods when the reference device is detected as defective. An independent claim is also included for a device for testing plausibility of measured values.