AD7730在高精度电子称中的应用  

Application of AD7730 in High-Accuracy Electronic Balance

作　　者：郭彪[1] 骆远福[2] 孔淼[2] 李作武[2] 

机构地区：[1]西南科技大学信息与控制工程学院,绵阳四川621002 [2]西南自动化研究所,绵阳四川621000

出　　处：《兵工自动化》2005年第2期69-70,共2页Ordnance Industry Automation

摘　　要：AD7730双通道全差分模拟输入可直接和传感器输入信号相连。高精度电子称测量电路由桥式力传感器、基准电压电路、AD7730和32位ARM单片机组成。该电子称通过片上串行通讯对同一采样点进行多次采样,再进行均方根运算获得高精度,其分辨率可达到mg级。The inputs of the analog signals of AD7730 with the double channels of whole difference is directly linked to output of sensor. The high-accuracy electronic balance is made up of bridge type strength sensor, basic voltage circuit, AD7730, ARM single chip. The same sampled point was sampled many times with the electron balance through the serial communication on the chip, and then root mean square was calculated to gain higher accuracy and make the resolution rate reach mg grade.

关 键 词：AD7730 ARM单片机 力传感器 电子称 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]