电子血压计工作原理和设计 统由恒流源、压力传感器、放大电路、带通滤波、二次放大、血压脉冲触发、液晶驱动器、键盘语音电路和单片机组成。-Electronic blood pressure monitors working principle and design of integration by the constant current source, pressure sensor, amplifier, band-pass filtering, the second amplificat