%0 Journal Article %T A cost effective power meter for lift systems based on a novel definition of total power factor %A Chan, Wai Lok %A So, Albert %J Transactions of the Institute of Measurement and Control %V 41 %N 14 %P 3899-3908 %@ 0142-3312 %D 2019-10-01 %I SAGE Publications %~ DeepDyve