公开(公告)号：US6034334A

公开(公告)日：2000-03-07

申请号：US421491

申请日：1995-04-12

申请人： Yoshihiro Nakamura ,  Yukio Wakasa ,  Kazufumi Naito ,  Hidekatsu Tokumaru ,  Shoko Tajiri

发明人： Yoshihiro Nakamura ,  Yukio Wakasa ,  Kazufumi Naito ,  Hidekatsu Tokumaru ,  Shoko Tajiri

IPC分类号： G01G23/10 ,  G01G13/00

CPC分类号： G01G23/10

摘要： 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.

摘要翻译： 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 。

公开(公告)号：US5789713A

公开(公告)日：1998-08-04

申请号：US684913

申请日：1996-07-25

申请人： Yukio Wakasa ,  Shoko Tajiri

发明人： Yukio Wakasa ,  Shoko Tajiri

IPC分类号： G01G23/10 ,  G01G3/00

CPC分类号： G01G23/10

摘要： A weighing method and apparatus includes a weighing cell for weighing an article and outputting a weighing signal corresponding to the weight thereof and a floor vibration detecting cell for detecting vibration of a floor on which the weighing cell is installed and for outputting a floor vibration detection signal. The weighing signal and the floor vibration detection signal are selectively sampled at a predetermined sampling frequency and an A/D converter converts each of the sampled signals into a digital weighing signal or a digital floor vibration detection signal, respectively. A first digital filter filters the digital weighing signal and a second digital filter filters the digital floor vibration detection signal. A floor vibration compensator subtracts the filtered digital floor vibration detection signal from the filtered digital weighing signal and outputs a floor vibration compensated signal wherein an error of the weighing signal caused by the floor vibration is compensated for. A phase corrector nullifies a phase difference, caused by a difference in the times at which the weighing signal and the floor vibration detection signal are sampled, by applying a suitable correction, corresponding to the phase difference, to the weighing signal or the floor vibration detection signal before or after filtering.

摘要翻译： 称重方法和装置包括称重单元，用于称重物品并输出与其重量相对应的称重信号;以及地板振动检测单元，用于检测安装有称重单元的地板的振动，并输出地板振动检测信号 。 称重信号和地板振动检测信号以预定的采样频率被选择性地采样，并且A / D转换器分别将每个采样信号转换成数字称重信号或数字地板振动检测信号。 第一数字滤波器对数字称重信号进行滤波，第二数字滤波器对数字地板振动检测信号进行滤波。 地板振动补偿器从经滤波的数字称重信号中减去经滤波的数字地板振动检测信号，并输出由地面振动引起的称重信号的误差得到补偿的地板振动补偿信号。 相位校正器通过对称重信号或地板振动检测应用与相位差对应的适当校正，来消除由称重信号和地板振动检测信号被采样的时间差引起的相位差 过滤之前或之后的信号。

公开(公告)号：US08198554B2

公开(公告)日：2012-06-12

申请号：US12310720

申请日：2007-08-24

申请人： Kazufumi Naito ,  Shoko Tajiri ,  Shinji Takeichi

发明人： Kazufumi Naito ,  Shoko Tajiri ,  Shinji Takeichi

IPC分类号： G01L1/22

摘要： A load cell unit which can satisfactorily measure the weight of a measured object if ambient temperature changes, and a weight checker and an electric balance using the load cell unit, are provided. A strain generating element includes plural strain generating portions. Each of strain gauges is a gauge of a temperature/sensitivity compensated type and is placed in a position on a corresponding strain generating portion. A bridge circuit includes the strain gauges. A zero compensation element compensates the zero of the bridge circuit in accordance with the temperature of the strain generating element, to roughly correct an output of the bridge circuit. A thermal sensitive resistor is a temperature sensor for detecting the temperature of the strain generating element. The zero compensation element and the thermal sensitive resistor are provided on a thick portion interposed between adjacent strain generating portions. A signal processor minutely corrects a roughly-corrected output of the bridge circuit. Thus, software compensation of zero can be further provided to an output of the bridge circuit, to which circuital compensation of zero is provided.

公开(公告)号：US20090255736A1

公开(公告)日：2009-10-15

申请号：US12310720

申请日：2007-08-24

申请人： Kazufumi Naito ,  Shoko Tajiri ,  Shinji Takeichi

发明人： Kazufumi Naito ,  Shoko Tajiri ,  Shinji Takeichi

IPC分类号： G01G11/00 ,  G01G3/18 ,  G01G3/14

CPC分类号： G01L1/2243 ,  B07C5/18 ,  G01G3/18 ,  G01L1/2281

摘要： A load cell unit which can satisfactorily measure the weight of a measured object if ambient temperature changes, and a weight checker and an electric balance using the load cell unit, are provided. A strain generating element includes plural strain generating portions. Each of strain gauges is a gauge of a temperature/sensitivity compensated type and is placed in a position on a corresponding strain generating portion. A bridge circuit includes the strain gauges. A zero compensation element compensates the zero of the bridge circuit in accordance with the temperature of the strain generating element, to roughly correct an output of the bridge circuit. A thermal sensitive resistor is a temperature sensor for detecting the temperature of the strain generating element. The zero compensation element and the thermal sensitive resistor are provided on a thick portion interposed between adjacent strain generating portions. A signal processor minutely corrects a roughly-corrected output of the bridge circuit. Thus, software compensation of zero can be further provided to an output of the bridge circuit, to which circuital compensation of zero is provided.

摘要翻译： 一种称重传感器单元，其能够在环境温度变化时能够令人满意地测量测量对象的重量，并且提供使用该称重传感器单元的重量检查器和电气平衡。 应变发生元件包括多个应变产生部。 每个应变计是温度/灵敏度补偿型的量规，并且被放置在相应的应变产生部分上的位置。 桥式电路包括应变计。 零补偿元件根据应变发生元件的温度补偿桥接电路的零点，以大致校正桥接电路的输出。 热敏电阻器是用于检测应变发生元件的温度的温度传感器。 零补偿元件和热敏电阻器设置在插入相邻应变产生部分之间的厚部分上。 信号处理器精确地校正桥接电路的大致校正的输出。 因此，可以将零的软件补偿进一步提供给提供零电路补偿的桥式电路的输出。

公开(公告)号：US07961074B2

公开(公告)日：2011-06-14

申请号：US12095180

申请日：2008-01-28

申请人： Shoko Tajiri ,  Shinji Takeichi ,  Hiroki Fujioka ,  Kazuteru Oda

发明人： Shoko Tajiri ,  Shinji Takeichi ,  Hiroki Fujioka ,  Kazuteru Oda

IPC分类号： G01L1/22

CPC分类号： G01L1/2243 ,  G01L1/2287

摘要： The load cell includes a strain generating body having a strain generated portion, and a strain detection element provided on a surface of the strain generating body in a portion corresponding to the strain generated portion and having an inversion portion and a straight portion. A creep characteristic is adjusted by a thickness of the strain generated portion in a portion corresponding to the inversion portion.

摘要翻译： 测力传感器包括具有应变产生部分的应变发生体和应变检测元件，该应变检测元件设置在与应变产生部分对应的部分中的应变发生体的表面上，并且具有反转部分和直线部分。 在对应于反转部分的部分中，通过应变产生部分的厚度调整蠕变特性。

公开(公告)号：US5936206A

公开(公告)日：1999-08-10

申请号：US884315

申请日：1997-06-27

申请人： Shoko Tajiri

发明人： Shoko Tajiri

IPC分类号： G01G23/10 ,  G01G3/00

CPC分类号： G01G23/10

摘要： A weighing machine, such as a combinational weighing machine, has scale cells and a plurality of vibration-detecting 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 signals from the vibration-detecting cells. Vertical displacements of the floor at the positions of the scale cells are calculated therefrom, and their effects are removed from the weight signals. A control device is provided such that the effects of floor vibrations are ignored if they are sufficiently weak.

摘要翻译： 诸如组合称重机的称重机具有尺寸单元和安装在同一楼层上的多个振动检测单元。 比例单元输出与加载对象的权重对应的权重信号。 从振动检测单元的信号检测地板的振动模式。 由此计算出刻度单元位置处的底板的垂直位移，并从重量信号中去除它们的影响。 提供控制装置，使得如果地板振动的影响足够弱，则忽略地板振动的影响。

公开(公告)号：US20100148916A1

公开(公告)日：2010-06-17

申请号：US12095180

申请日：2008-01-28

申请人： Shoko Tajiri ,  Shinji Takeichi ,  Hiroki Fujioka ,  Kazuteru Oda

发明人： Shoko Tajiri ,  Shinji Takeichi ,  Hiroki Fujioka ,  Kazuteru Oda

IPC分类号： G01L1/22

CPC分类号： G01L1/2243 ,  G01L1/2287

摘要： The load cell includes a strain generating body having a strain generated portion, and a strain detection element provided on a surface of the strain generating body in a portion corresponding to the strain generated portion and having an inversion portion and a straight portion. A creep characteristic is adjusted by a thickness of the strain generated portion in a portion corresponding to the inversion portion.

摘要翻译： 测力传感器包括具有应变产生部分的应变发生体和应变检测元件，该应变检测元件设置在与应变产生部分对应的部分中的应变发生体的表面上，并且具有反转部分和直线部分。 在对应于反转部分的部分中，通过应变产生部分的厚度调整蠕变特性。