摘要
研究结果表明采用等示值法在品质因数Q<1的情况下,可以精确确定谐振频率,从而实现对电容的精确测定。
The series resonance frequency which can be measured by oscilloscope is very important in determination of capacitance. However,both quality factor Q and parasitic resistance RLC have impact on the capacitance measurement accuracy. Our research results indicate that the equal indicated value method can achieve a high accuracy measurement in series RLC circuit with quality factor Q〈 1.
出处
《大学物理实验》
2017年第1期37-39,共3页
Physical Experiment of College
基金
国家自然科学基金青年科学基金(13007728)
关键词
谐振频率
电容
等示值法
示波器
resonance frequency
capacitance
equal indicated value
oscilloscope