摘要
传感器的静态耦合是制约多维车轮力传感器(WFT)测量精度的一个主要因素,WFT的耦合主要为线性耦合。针对标定WFT时不能施加单维力的情况,用迭代法实现了线性解耦。对WFT的耦合率矩阵进行了计算,并进行了耦合分析。对汽车道路试验数据进行了解耦,并与不解耦的结果进行了对比。结果表明:经线性解耦后,WFT的耦合误差基本被消除,测量精度得到了提高。
The static couple of multi-dimension wheel force transducer（WEt） is one major factor of limiting its measuring precision, and the couple of wet is mainly linearity. Since single dimension force cannot be put on wet when it is calibrated, iterative method is used for linearity uncouple. Cross-coupling matrix of wet was computed, and characteristics of crosstalk was analyzed. Data in motor vehicle road test are uncoupled, and the result was compared with the result of coupled. The results suggest that crosstalk error is almost eliminated and the measuring precision is improved with linearity uncoupling.
出处
《仪表技术与传感器》
CSCD
北大核心
2006年第7期15-18,共4页
Instrument Technique and Sensor
基金
江苏省交通科学研究计划项目(项目编号:05C02)
关键词
车轮力传感器(WFT)
耦合
静态解耦
耦合矩阵
WFT（wheel force transducer）
cross-talk
static decoupling
cross-coupling matrix
