自激振荡器
- 网络free running oscillator;self-excited oscillator
自激振荡器-
由临界偏置下单结晶体管（UJT）组成的自激振荡器置于一交变磁场中时，如果两者的频率接近，则振荡器输出脉冲的幅度将急剧增加。
When the UJT biased in critical state is submited to an alternative magnetic field , the frequency of which is close to a frequency of the UJT oscillator , the amplitude of the UJT free oscillation is strongly amplified .
-
在与传统计数式时间数码变换方法结合使用后，在使用低频自激振荡器的情况下，可以对较大动态范围的脉冲宽度进行测量，实现了较小的时间道宽和较高的测量精度。
High precision and good reliability can be realized when it is combined with traditional counting convert method in the measurement of large scale pulse width and low frequency self-excitation oscillator .