摘要
在使用过程中,悬臂梁式电子秤安装位置的水平是保证其准确性的前提,但在实际应用当中,被安装平面常常是非水平的,例如车载的电子秤、运输带上的电子秤等等。这使电子秤的准确性降低,造成称重不准确甚至误差很大的现象。针对目前悬臂梁式电子秤的这种缺陷,根据悬臂梁式称重传感器的工作机理,提出了一种对悬臂梁式电子秤全周倾斜时称重所产生的误差给予补偿的算法,实现了电子秤秤台面与水平面倾斜夹角小于12°时全周倾斜的称重误差自动补偿。经检验,采用这种补偿算法,量程为30000 g,分辨力为5 g的双孔悬臂梁电子秤在倾斜角度小于12°的全周倾斜范围下,空载示值误差为0,满载示值误差的绝对值≤5 g,满足国家标准《GBT7722-2005电子台案秤》规定的台案秤受倾斜引起的变化量的指标。
In the process of using cantilever type electronic scale,the level of installation position is the premise to ensure its accuracy,but in practical application,the installation plane is often non horizontal,such as the electronic scale being on the vehicle,on the transport belt and so on.In this way,the accuracy of the electronic scale will be compromised,resulting in inaccurate weighing and even large error.According to the working mechanism of the cantilever type weighing sensor,an algorithm is proposed to compensate the weighing error when the cantilever type electronic scale is tilted all around.The automatic compensation of the weighing error is realized when the tilt angle between the platform and the horizontal plane is less than 12 degrees.The results show that the no-load indication error is 0 and the absolute value of full load indication error is less than 5 g for the double hole cantilever beam electronic scale with the range of 30000 g and resolution of 5 g,which meets the national standard of GBT7722-2005 Electronic portable platform and bench scale.
作者
王建乐
裘国华
李青
WANG Jianle;QIU Guohua;LI Qing(College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou Zhejiang 310018,China)
出处
《传感技术学报》
CAS
CSCD
北大核心
2022年第7期881-887,共7页
Chinese Journal of Sensors and Actuators
基金
浙江省重点研发计划项目(2019C03114)。
关键词
质量计量仪器
倾斜称重
误差补偿
全周倾斜
悬臂梁式电子秤
quality measuring instrument
tilt weighing
error compensation
all around tilt
cantilever beam electronic scale
