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本文讨论了 MD-1型血流仪的设计考虑,特别着重讨论了仪器各部分带宽的配合,设计了一个与血流计配合使用的微机化的 FFT 谱分析器,它以声谱图的格式显示出散射回波多普勒信号的动态功率谱。文中给出了一些临床结果,表明仪器对心血管系统的诊断有很大帮助。
This article discusses the design considerations of the MD-1 flowmeter, with particular emphasis on the cooperation of the bandwidth of the various parts of the instrument. We designed a computerized FFT spectrum analyzer for use with the flowmeter, which uses the spectrogram format Show the scattered echo echo Doppler signal dynamic power spectrum. The paper gives some clinical results, indicating that the instrument is of great help in the diagnosis of the cardiovascular system.