本文以软件控制技术为关键，配以接口电路，研制了超低频虚拟数字存储示波器。进行了相应的软、硬件系统的设计。
The lower frequency virtual digital stored oscillograph was designed and researched combining software control technology with interface circuit, software and hardware system were made.
该装置与通用示波器配合，即能对四路生理信号或超低频信号实现非消隐显示和波形的“冻结”、串接等显示功能。
It cart be combined with the general-purpose oscilloscope to realize non-fade mode display, waveforms freeze, and series mode display for 4-channel biological signals or ultra-low frequency signals.
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