Studies on on-line detection system for centrifugal-pump running parameters

This article introduced the basic principle and the calculate process of the on-line detection system for centrifugal-pump running parameters,and the method of curve fitting of Q—H、Q—N performance curves of centrifugal-pump.The analysis of experiment indicated that the studied system had high precision,which could on-line display the running parameters of the centrifugal-pump,such as flow,height,shaft power and efficiency.This on-line detection system could meet practical application of commonly water pumping station project.