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 eighing and even large error. According to the working mechanism of the can tilever 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 30 000 g and resolution of 5 g,which meets the national standard of GBT7722- 2005 Electronic portable platform and bench scale.
Electronic scale is a common method for modern quality measurement. It has a wide range of applications in various fields such as financial trade, manufacturing, industrial processing, and scientific research. Therefore, the accuracy of electronic scales is particularly important.
At this stage, the cantilever beam -type electronic scale is the most useful and most widely used electronic scale. The level of the installation location of the cantilever beam -type electronic scale is the prerequisite for ensuring its accuracy, but in practical applications, the installed planes are often non -level, such as the electronic scale of the vehicle, the electronic scale on the transportation belt, and so on. This reduces the accuracy of the electronic scale, causing inaccurate weighing or even a large error.
For compensation for errors due to inclined cantiles, the cantilever beam -type electronic scales have inadequate research at home and abroad at this stage, less related documents, and generally only compensate the inclined errors in a single direction, such as literature. And there is no specific compensation algorithm modeling analysis, with low practical value. At the same time, the tilt of the electronic scales did not explain the whole week.
To this end, this article conducts a research description of the full weekly tilting of the cantilever beam -type electronic scales, and establishes an electronic scales to compensate the mathematical model throughout the weekly inclined misunderstanding. Combining the acceleration sensor to obtain the posture of the electronic scale, through the analysis of the measuring attitude and weighing results, based on the actual optimization model, the parameter array is determined to obtain an effective compensation algorithm. After experimental inspection, the algorithm can effectively automatically compensate the cantilever beam -type electronic scale, and meet the national standards "GB /T 7722-2005 Electronic Taiwan Case Scale". index.