Flow Diverter Timing Error Modeling and Optimization

Timing error is one of the most important accuracy affected factors of the flying-startstop liquid flow calibration facilities. However, the traditional timing error calculation model has omitted several quadratic terms so it has some model errors. In this paper, a unified and complete model of timing error has been developed by analyzing the transforming relationship between diverting flow error and timing error, and, the new model can be use in the performance evaluation of different types of diverters. The experiments results reveal that the new calculation model has a higher error measurement precision, and, for both the new and the traditional timing error calculation model: the timing error will increase with a higher flow rate; the performance of using a fixed nozzle is better than that of using a moving nozzle; the timing error can be reduced effectively by adjusting the trigger location.