由于脉冲频率和电容间的线性对数关系,可用晶体管阻塞振荡器来测量电容,本仪器能在直流表头上读出10_PF至1.0μF的电容量。引言晶体管阻塞振荡器具有这样一种特性,振荡器的振荡频率与振荡电路中使用的电容直接有关。本文在实验里考虑到频率和电容间的关系(F～C),并且把它应用于制造一只简单又宽量程的电容测量仪。这种改进的测量仪能 Due to the linear logarithm of the pulse frequency and capacitance, the capacitor can be measured with a transistor blocking oscillator. The instrument reads 10_PF to 1.0μF on the DC header. Introduction Transistor blocking oscillators have such a characteristic that the oscillator’s oscillation frequency is directly related to the capacitance used in the oscillator circuit. This paper considers the relationship between frequency and capacitance (F ~ C) in experiments and applies it to make a simple and wide-range capacitance measuring instrument. This improved gauge can