测量放大器的参考端加入电平的研究  

The Research About a Signal Voltage Being Putted into the Reference Point of Measuring Amplifier

作　　者：刘惠丽[1] 魏占永[1] 

机构地区：[1]河北工业大学廊坊分院,廊坊102800

出　　处：《河北工业大学学报》1999年第5期49-52,共4页Journal of Hebei University of Technology

摘　　要：从理论上分析了测量放大器的参考端加入电平时其各主要参数指标的变化．实验中在其参考端加入不同伏值的电平，重点测试了差动增益及其输入范围、共模输入范围和零偏并记录了数据．证实了在一定范围内测量放大器的输入信号、参考端电平和输出信号的关系式成立．When a signal voltage is putted into the reference point of measuring amplifier, this paper has showed the main parameter of measuring amplifier how to change in theory. In experiment the voltage putted into the reference point of measuring amplifier being varied, we focus our testing on differential gain, offset drift, common signal input range, differential signal input range and record the data concerned. The relations between input signal, reference signal and output signal is obtained from theory and experiment.

关 键 词：测量放大器 参考端 差动增益 电平 输入信号 

分 类 号：TN722.57[电子电信—电路与系统]