摘要
由于原有用压力传感器测量血压的实验装置陈旧、性能不足,因此对实验仪器进行了改装。介绍了原有实验仪器的原理以及改装后的实验仪器原理。采用MPX50GP半导体应变集成型压力传感器放大电路与电表组装在一起,当电表开关指向mV档时,电表为毫伏表,用来测传感器的输出电压,当开关指向kPa档时,电表为一具电子血压计。改装后的实验仪器具有体积小,重量轻,灵敏度高等特点,既提高了医学学生对物理实验的兴趣,同时又对电子血压计有了一定的理论了解。
Because the previous experimental instruments used in surveying blood pressure was old and had insufficient performance,it was refitted.The principle of the previous instrument and the refitted instrument are introduced.The refitted experiment instrument has the advantages of small volume,light weight and high sensitivity.It makes the students of clinical medicine interested in the physical experiments and allows the students to understand the electronic sphygmomanometer in theory.
出处
《现代电子技术》
2012年第4期200-201,共2页
Modern Electronics Technique
基金
教育部教研项目基金资助(BIAO10092)
关键词
压力传感器
实验仪器
血压测量
电表
pressure sensor
experimental instrument
blood pressure measurement
ammeter
