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便携式数字示波器的设计有什么要注意的?_其他_设计456问答
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便携式数字示波器的设计有什么要注意的?

浏览:49次 | 提问时间: 08-06 09:44
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3个答案
不美不萌又怎样 08-06 09:44

数字示波器是*采集,A/D转换,*编程等一系列的技术*出来的高性能示波器。数字示波器一般支持多级菜单,能提供给用户多种选择,多种分析功能。还有一些示波器可以提供存储,实现对波形的保存和处理。

眼里风景 08-06 09:53

首先根据输出波形的频率和幅值进行编码,存储在单片机的ROM里,   然后以一定的时间间隔依次将这些数字量送往D/A进行转换输出,这样,只要循环送数,在D/A的双极性输出端就可以得到波形波形。      采用单片机片内的振荡器、上电复位和外部硬件看门*电路。      至于波形编码,网上*很多,下面是硬件电路设计的描述(这个是网上找的):   输出两路幅值相等相位相差90°的正弦波形作为物体偏转测量的基准波形;另一路输出测角波形,该波形相对基准波形的相位反映角偏差的方向、幅值反映角偏差量。专用波形发生器就是模拟角位移输出波形的装置,用来进行后续解调电路以及功放电路的检测。它以单片机为核心,经过D/A转换和放大电路的处理,最后输出反应弹体姿态的基准波形和测角波形。

在来爱我一回放手也是⒈种爱 08-06 10:01

便携式数字示波器的设计有什么要注意的:输出两路幅值相等相位相差90°的正弦波形作为物体偏转测量的基准波形;另一路输出测角波形,该波形相对基准波形的相位反映角偏差的方向、幅值反映角偏差量。专用波形发生器就是模拟角位移输出波形的装置,用来进行后续解调电路以及功放电路的检测。它以单片机为核心,经过D/A转换和放大电路的处理,最后输出反应弹体姿态的基准波形和测角波形。

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