Abstract： To solve the defects of lack objectivity and too much noise source of human pulse signal, based on microvibration measuring technique, a computercontrolled signal acquisition system was developed with strain sensor to acquire clear pulse signal at suitable pressure. Using the strain sensor as system core to adjust the pressure through air bag, the probe was directly contacted with human body to collect the microvibration signal. Under different environment, the signal should be processed to improve the signal quality. The microvibration signal was analyzed with empirical mode decomposition (EMD) and wavelet analysis to acquire accurate pulse signal. The results show that under different pulse taking pressure, the resolution can reach 001 N, and the relative error is less than 5％ with linear degree of 5％. Compared to piezoelectric material, the strain sensor has higher stability and static accuracy.
夏明一. 以应变式传感器为核心的人体脉搏信号采集与处理[J]. 江苏大学学报（自然科学版）, 2016, 37(4): 423-428.
XIA Ming-Yi. Acquiring and processing of human pulse signal based on strain sensor[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2016, 37(4): 423-428.
2016, Vol. 37 
