Research on Zheng Classification Fusing Pulse Parameters in Coronary Heart Disease

Figure 1

Height and time variables of a typical pulse cycle. ℎ₁: height of percussion wave, ℎ₃: height of tidal wave, ℎ₄: height of dicrotic notch, 𝑡₄: time distance between the starting point of pulse chart and dicrotic notch, 𝑡₅: time distance between dicrotic notch and the ending point of pulse chart, 𝑡: time distance between the starting point and the ending point, 𝑤: width of percussion wave in its 1/3 height position.