工作电流对双电桥灵敏度影响的实验研究

The research of the working electric current's influence on the double electric bridge in experiment

仪器灵敏度的概念在平衡测量、补偿测量中非常重要,它直接影响测量结果的误差和仪器配置等问题.因此从理论上分析了影响双电桥灵敏度的各因素,通过实验来论证了工作电流对双电桥灵敏度的影响,从而确定了在实验中对双电桥工作电流的选取原则.

The concept of the intelligent degree in instrument is very important in equilibrium measure and compensated measure. It directly influences the error margin of the measure result and the choice of the right instruments. First, this text analyzes each factor that affects the intelligent degrees in the double electric bridge theoretically. And it proves the working electric current's influence on the intelligent degree in the double electric bridge. Finally, it makes sure the selection principle of working electric current in the double electric bridge in experiment.