Influence of shield to impedance measurementXU Huan-rong Measuring Station of 20th Institute China Electronic Science & Technology Corporation, Xi'an 710075, ChinaAbstract:Shield is important to control the interference of electromagnetic field coupling.To research the interference of shield in impedence measurement,by the shield's theory and how to imply equal-potential shield,it may help engineer know the shield's affecting to the measurement of capacitance and inductance,resistance, in order to assure the reliability of measurement.[著者文摘]