基于应变片的电子秤实验系统设计

Strain-Gauge-based Electronic Scale Experimental System Design

本文介绍了一款基于应变片的数字显示电子秤实验系统的设计和制作,系统由传感器检测电路、检测信号放大电路、检测信号转换电路和显示电路组成。该设计是为了配合传感器相关教学来进行的,注重系统的模块化和输入输出的相对独立性。文中重点介绍了应变片传感器的制作过程和要点,以及针对应变片传感器的电路调试的步骤和要领。

A strain-gauge-based electronic scale experimental system is introduced which is composed of sensor detecting circuit,signal amplifying and conditioning, signal converting and MCU with a LCD displaying modules.The aim of this design is to practice the project-oriented teaching section of strain-gauge sensor.The system is set into several modules with I/Os to enhance the practicing and understanding. The steps and key points to work out a weighting sensor with strain-gauges and load cellare emphasized.