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    • 70. 发明授权
    • Method of and means for correcting effects of floor vibrations on weight
signals from a weighing machine
    • 校正地板振动对称重机重量信号影响的方法和装置
    • US6034334A
    • 2000-03-07
    • US421491
    • 1995-04-12
    • Yoshihiro NakamuraYukio WakasaKazufumi NaitoHidekatsu TokumaruShoko Tajiri
    • Yoshihiro NakamuraYukio WakasaKazufumi NaitoHidekatsu TokumaruShoko Tajiri
    • G01G23/10G01G13/00
    • G01G23/10
    • A weighing machine, such as a combinational weighing machine, has scale cells and a plurality of dummy cells installed on the same floor. The scale cells output weight signals corresponding to the weights of objects being loaded. The mode of vibrations of the floor is detected from dummy signals from the dummy cells, vertical displacements of the floor at the positions of the scale cells are calculated, and their effects are eliminated from the weight signals. Those of the scale cells not selected after a cycle of combinational calculations can be used as dummy cells in the next cycle. A memory device may be provided to store preferred combinations of such scale cells not selected that may be used for this purpose. Effects of the floor vibrations can be eliminated more accurately if the differences in sensitivity among the cells due to physical characteristics of the individual cells and/or due to the different loads on them can be taken into account either by a feedback calculation or by a formula.
    • 诸如组合式称重机的称重机具有鳞片单元和安装在同一楼层上的多个虚拟单元。 比例单元输出与加载对象的权重对应的权重信号。 从虚拟单元的虚拟信号检测地板的振动模式,计算比例单元位置的地面垂直位移,并从重量信号中消除它们的影响。 在组合计算周期之后未选择的比例单元的那些可以在下一个周期中用作虚拟单元。 可以提供存储器件来存储未被选择用于此目的的比例尺细胞的优选组合。 如果通过单个电池的物理特性和/或由于它们上的不同负载导致的电池之间的灵敏度差异,则可以通过反馈计算或公式来考虑地板振动的影响 。