According to our test results, we g

According to our test results, we got the systolic BP (SBP) value is corresponding to the position that the peak-to-peak value of AC pulse is around 0.42 Pmax, and the diastolic BP (DBP) value is corresponding to the position that the peak-to-peak
value of AC pulse is around 0.77 Pmax. Fig. 4 demonstrates AC and DC of cuff pressure signals and the peak detection results. After the DBP′ is detected or the cuff pressure value is smaller than Threshold 2, the cuff pressure is released by a deflation valve. verify and calibrate the measuring results of our homemade BP monitor.