装载机动态电子秤采样电路的设计与实现  

Research on sampling circuit of dynamic weighing system about wheel loader

作　　者：刘力[1] 王伟[2] 

机构地区：[1]安徽中烟工业公司,阜阳236020 [2]北京航空航天大学机械工程及自动化学院,北京100083

出　　处：《现代制造工程》2009年第2期116-120,共5页Modern Manufacturing Engineering

基　　金：国家863高技术研究发展计划资助项目(2003AA430110)

摘　　要：分析装载机动态称重的实现机理并给出实现方案,通过动态称重系统对硬件设计提出的要求,指出采样电路的合理设计是高精度动态电子秤得以实现的关键。从硬件和软件两方面对采样电路的实现进行分析。最后通过工业现场环境条件下大量的试验,验证所设计采样电路的可靠性和稳定性,动态称重的测量精度稳定在1%以内。The fundamental principle and the realization method on freight dynamic weighing of wheel loader was analyzed at first. After the requirement of the system for the hardware had been studied, that sampling circuit was the key to get high precision weighing system was pointed out. And then the sampling circuit＇s hardware and software were analyzed separately. At last a large number of test results from the critical construction local site show that the measuring precision is within 1% ,which verifies that the system designed is reliable, stable and successful.

关 键 词：装载机 动态称重 采样电路 AD7730芯片 

分 类 号：TH862.75[机械工程—仪器科学与技术]