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| 基于压力应变的放大电路实验 |
| FU Xiao-cheng1,2, Lin Ping1,2, ZHANG De-hua1,2 |
| 投稿时间：2020-06-17 修订日期：2020-09-08 |
| DOI： |
| 中文关键词: 压力，传感器，放大电路，零点调节 |
| 英文关键词: pressure, sensor, Amplifying circuit, Zero adjustment |
| 基金项目:高校产学研项目 |
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| 摘要点击次数: 820 |
| 全文下载次数: 58 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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