To perform the self-testing of a watthour meter, an electric work Wl done on a load and a testing electric work Wt done on a first and a second resistor (R1, R2) of a voltage divider in a voltage sensor (1) are measured. To measure the e... R Miro,K Milan - EP 被引量: 2...
College PhysicsGUO Jun,.An apparatus to measure the liquid refractive index with principle of equal thickness interference.[J];College Physics,2010-04... J Guo - 《College Physics》 被引量: 4发表: 2010年 Method and apparatus for sorting materials according to relative composition Consequently it...