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目的有效地获取人体脉搏信号和分析脉搏所包含的生理病理信息。方法利用声学原理，设计了一种非接触式的脉搏信号检测系统，提取了人体四种脉搏声信号；应用快速傅立叶变换方法对脉搏信号进行了分析。结果获得了脉搏信号的功率谱，并对功率谱特征进行了分析和比较。结论得出了若干对中医脉诊客观化研究和人体心血管系统疾病的无创伤诊断有重要参考价值的结论。
Objective To obtain the pulse signal of the human body effectively and analyze the physiological and pathological information contained in the pulse. Methods Based on acoustic principle, a non-contact pulse signal detection system was designed and four kinds of human pulse signals were extracted. The pulse signals were analyzed by fast Fourier transform. Results The power spectrum of pulse signal was obtained, and the power spectrum characteristics were analyzed and compared. Conclusions A number of conclusions about the objective diagnosis of TCM pulse diagnosis and the noninvasive diagnosis of human cardiovascular diseases are concluded.