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在研究由冲击声所引起的听觉衰减的一些实验中,需要应用到上升时间和持续时间都可以独立地控制的三角形脉冲.通常的三角形脉冲产生器往往只能产生对称的三角形脉冲,这种脉冲的上升时间和持续时间是不能分别地改变的.本文描述一个晶体管电路,这个电路能够产生上升时间和持续时间都符合要求的三角形脉冲,其方法很简单,只要调节一个单级运算积分器的两个积分电阻就行了.并且,当脉冲上升时间、持续时间和重复频率在很大的范围内变化时,所输出的脉冲的幅度不改变.
In some experiments to study the acoustic attenuation caused by percussive sound, it is necessary to apply a triangular pulse that can be controlled independently for both the rise time and the duration.General triangular pulse generators tend to produce only symmetrical triangular pulses, The rise time and the duration can not be changed separately.This article describes a transistor circuit that produces a triangular pulse of both rising time and duration that is as simple as adjusting a two stage single integrator Integral resistance is ok, and when the pulse rise time, duration and repetition frequency vary over a wide range, the amplitude of the output pulse does not change.