Blood pressure measurement using device with piezoelectric sensor

The invention relates to blood pressure measurement using a device with a piezoelectric sensor. A blood pressure measurement device may include one or more piezoelectric sensors (e.g., differential piezoelectric sensors) for detecting blood flow through a limb of a user as part of determining blood pressure measurements. The piezoelectric sensor(s) may additionally or alternatively be used to determine one or more biological parameters of users (e.g., a ballistocardiogram, a heart rate, a heart rate variability, and a pulse wave velocity). The blood pressure measurement device may additionally or alternatively include a capacitive sensor for determining a pressure applied to the limb of the user by the blood pressure measurement device and/or operational states of the blood pressure measurement devices (off-arm, on-arm, inflating, deflating, tightness, and the like). 本公开涉及使用具有压电传感器的设备进行血压测量。血压测量设备可包括用于检测通过用户的肢体的血流作为确定血压测量结果的一部分的一个或多个压电传感器(例如，差分压电传感器)。一个或多个压电传感器可附加地或另选地用于确定用户的一个或多个生物参数(例如，心冲击图、心率、心率变异性和脉搏波速度)。