The Development of the National Voltage Standard for 10～3000 MHz
Li-Xin Hou · Jiliang xuebao · 2006
The principle and uncertainty evaluation of the national voltage standard for 10～3000 MHz are described.In principle this standard is a self developed automatic balance bridge,in which its resistance arms can be changed automatically,and is used for the calibration of the RF voltage.The results of theoretical analysis and experiments indicate that in the frequency band of 10 to 3 000 MHz and voltage range of 0.1 to 2 V,the uncertainty is 0.25% to 0.7% and the confidence level is 99.73%.