高质量示波器的扫描速率一直可达到0.1 us/CM,但是要用一些特殊元件,比如快速场效应管、隧道二极管与逻辑电路。本时基提供了一个广泛的扫描范围,它具有触发同步和亮线功能,并且并不需要任何昂贵与稀有的元件。三个与非门产生一个斜波,通过门C转换为方波,并用一个斯密特触发器加以整形。当此触发器输出被置为低位时,C_1经D_1放电,在引 High-quality oscilloscopes scan rates up to 0.1 us / CM, but use special components such as FETs, tunnel diodes, and logic. This time base offers a wide range of sweeps with the ability to trigger synchronization and bright lines without the need for any expensive or rare components. Three NAND gates generate a ramp, which is converted to a square wave by gate C and shaped with a Schmitt trigger. When this flip-flop output is set to low, C_1 discharge by D_1, cited