4Salvatore C,Salvatore N.A virtual instrument for measurement of flicker[J].IEEE Transaction on Instrumentation and Measurement,1998,47(5):1 155-1 158.
6Chen L J,Zhang Y,Liu P.Improvement of the traditional roundness measuring instrument[A].Proceedings of the ICPE' 96 & 6th SJSUT[C].Shenyang:Northeastern University Press,1996:363-366.
