The internal circuit of D.C. power supply,the signal generator,the frequency meter and the micro_vol_tage meter were compared,then a design approach of the newly multifunctional electrical instrument which can replace the four meters above has been giv
文川.综合低频电子线路实验仪的设计[J].重庆工商大学学报(自然科学版),2002,(2): WEN Chuan. A Design for Low-frequency and Multifunctional Electrical Instrument[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2002,(2):