These pressure variations can be modeled by a sine wave, where the peaks represent increased pressure and the troughs represent decreased pressure.

这些压力变化可以通过正弦波建模，其中波峰代表压力增加而波谷代表压力降低。

Another  advantage of this system is that many measurements can be made over time, and then averaged to eliminate error from incorrect usage or blood pressure variations due to stress, physical activity, and other factors.

该系统的另一个优点是可以随着时间的推移进行多次测量，然后取平均值以消除因压力、身体活动和其他因素导致的不正确使用或血压变化造成的误差。