血压计中仪表放大器的设计与制作  

Design and production of instrumental amplifier in blood pressure monitor

作　　者：兰羽[1] 周茜[1] 

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000

出　　处：《电子设计工程》2012年第11期160-162,共3页Electronic Design Engineering

摘　　要：为了检测血压测量系统中的微弱信号,采用由分立元件构成仪表放大器作为压力传感器前置放大器。运用Multsim对仪表放大器进行设计仿真,并对硬件电路安装调试。当输入信号带宽控制在10 Hz～2 kHz内,调节电位器RP可以使仪表放大器的增益可达90 dB。测试表明仪表放大器指标符合血压测量系统要求。To detect the weak signal of the blood pressure measurement system, this author uses the instrumental amplifier which is as a pressure sensor pre-amplifier for discrete components. He also uses the Muhsim to simulate the design of the instrumentation amplifier, and installs and commits the hardware circulation. When the input signal bandwidth is controlled within the 10 Hz-2 kHz and the potentiometer Rp is adjusted to make instrumentation amplifier up to 90 riB.The above tests show that the instrumentation amplifier indicators meet the requirements of blood pressure measurement system.

关 键 词：血压计 仪表放大器 Multsim仿真 电路安装 

分 类 号：TN72[电子电信—电路与系统]