基于压力应变的放大电路实验  

Amplification Circuit Experiment Based on Pressure Strain

作　　者：傅晓程[1,2] 林平[1,2] 张德华[1,2] FU Xiao-cheng;LIN Ping;ZHANG De-hua(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;National Experimental Teaching Demonstration Cent for Electrical Engineering and Electronic Experiment,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]浙江大学电工电子国家级实验教学示范中心,浙江杭州310058

出　　处：《电气电子教学学报》2021年第5期141-144,共4页Journal of Electrical and Electronic Education

基　　金：教育部新工科专业改革项目:自动化类项目群(编号E-ZDH20201612);校企项目:浙江大学英特尔项目(编号20182014042)。

摘　　要：本实验基于压力传感器的高阻抗小信号输出,分别通过单个运算放大器差分电路、三个运算放大器构成的仪用放大电路以及集成仪用放大电路来放大,应用零点与增益调整电路来实现重量与电压的一一对称,通过数字万用表的电压值来表示重量。该实验具有趣味性、实用性和不确定性有利于学生发现问题、分析问题、解决问题。In this experiment,high impedance small signal based on pressure sensor output,difference respectively through a single operational amplifier circuit,consisting of three operational amplifier instrument using amplifying circuit and integrated instrument amplifier circuit to amplify,application of zero and gain control circuit to achieve weight and the voltage of the symmetry,said the weight through the voltage value of the digital multimeter.The experiment is interesting,practical and uncertain,which is helpful for students to find,analyze and solve problems.

关 键 词：压力 传感器 放大电路 零点调节 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]