电脑知识与技术
電腦知識與技術
전뇌지식여기술
COMPUTER KNOWLEDGE AND TECHNOLOGY
2013年
28期
6437-6440,6445
,共5页
施密特触发器%模拟开关%分频
施密特觸髮器%模擬開關%分頻
시밀특촉발기%모의개관%분빈
Schmitt Trigger%Analog Switch%Frequency Division
为观测同一电路不同点电信号的频率、幅值、相位等关系，需要多踪示波器同时显示多个信号波形。由线性运放、施密特触发器、十进制计数/脉冲分配器、模拟开关等能够构成单-四踪示波器转换系统。用波形变换与分频的方法获得触发信号，用模拟开关控制信号的切换，用线性运放对信号进行叠加与放大，再结合通用示波器，实现信号的多波形显示与观测，为电子测量提供了一种便捷、实用的方法。
為觀測同一電路不同點電信號的頻率、幅值、相位等關繫，需要多蹤示波器同時顯示多箇信號波形。由線性運放、施密特觸髮器、十進製計數/脈遲分配器、模擬開關等能夠構成單-四蹤示波器轉換繫統。用波形變換與分頻的方法穫得觸髮信號，用模擬開關控製信號的切換，用線性運放對信號進行疊加與放大，再結閤通用示波器，實現信號的多波形顯示與觀測，為電子測量提供瞭一種便捷、實用的方法。
위관측동일전로불동점전신호적빈솔、폭치、상위등관계，수요다종시파기동시현시다개신호파형。유선성운방、시밀특촉발기、십진제계수/맥충분배기、모의개관등능구구성단-사종시파기전환계통。용파형변환여분빈적방법획득촉발신호，용모의개관공제신호적절환，용선성운방대신호진행첩가여방대，재결합통용시파기，실현신호적다파형현시여관측，위전자측량제공료일충편첩、실용적방법。
In order to observe the relationship between frequency, amplitude and phase of the electrU signals at different nodes in the same circuit, it needs multi-signal oscilloscope to simultaneously display the several signal waveforms. The conversion sys-tem of single-four trace oscilloscope can be composed of the linear OpAmp, Decade Counter/Divider and analog Switch. With the method of waveform transformation and frequency division to obtain the trigger signal, analog switch to control signal switch-ing, linear OpAmp to stack and amplify the signal, combined with general Oscilloscope can realize the observation on multi-waveform so as to provide a convenient and useful method for electronU measurement.
