公开(公告)号：US6013879A

公开(公告)日：2000-01-11

申请号：US923060

申请日：1997-09-03

申请人： Yoshihiro Nakamura ,  Yukio Wakasa ,  Kazufumi Naito

发明人： Yoshihiro Nakamura ,  Yukio Wakasa ,  Kazufumi Naito

IPC分类号： G01G23/01 ,  G01G3/14 ,  G01G11/00 ,  G01G23/10 ,  G01G19/22 ,  G01G19/00 ,  G01G21/10

CPC分类号： G01G23/10 ,  G01G3/1414

摘要： A multi-point cell type weighing machine has a plural number of scale cells set on a floor to support a table and to output weight signals indicative of weights measured thereby of a target object placed on the table. One or more floor vibration detecting cells are set on the same floor and output floor vibration detection signals indicative of the vibrations of the floor. The weight signals are corrected on the basis of vibration components of the floor vibration detection signals. A standard weight is placed at a larger plural number of places on the table than there are scale cells and output sensitivity ratios among the scale cells are calculated from outputted values from the scale cells, and the weight signals are further corrected on the basis of the output sensitivity ratios. These weight signals are added together and the weight of the target object is obtained from the added signal. A plurality of floor vibration detecting cells may be set on the floor, each near different one of the scale cells, or they may be set anywhere on the floor and a mode of floor vibrations may calculated from their outputs. A single floor vibration detecting cell may be set between the scale cells. The table is supported by the scale cells through elastic pieces such that only vertical forces are communicated to the scale cells.

摘要翻译： 多点电池型称量机具有设置在地面上的多个电池型称重机，以支撑桌子并输出表示由放置在桌子上的目标物体所测量的重量的重量信号。 一个或多个地板振动检测单元设置在相同的楼层上，并且输出表示地板振动的楼层振动检测信号。 基于地板振动检测信号的振动分量校正重量信号。 标准重量放置在桌子上的数量比在比例单元上的多个位置，并且按比例单元的输出值计算尺度单元之间的输出灵敏​​度比，并且基于 输出灵敏度比。 这些加权信号被加在一起，并且从所添加的信号中获得目标对象的权重。 多个楼层振动检测单元可以设置在地板上，每个靠近不同的一个秤单元，或者它们可以设置在地板的任何地方，并且可以根据它们的输出计算地板振动的模式。 可以在秤单元之间设置单层振动检测单元。 该表由秤单元通过弹性件支撑，使得只有垂直的力传递到秤单元。

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：USRE36411E

公开(公告)日：1999-11-30

申请号：US874826

申请日：1997-06-13

申请人： Yoshihiro Nakamura ,  Kazufumi Naito

发明人： Yoshihiro Nakamura ,  Kazufumi Naito

IPC分类号： G01G23/37 ,  G01G3/14 ,  G01G3/147 ,  G01G23/10

CPC分类号： G01G23/10 ,  G01G3/1414 ,  G01G3/147

摘要： A weighing apparatus has a scale cell and a dummy cell, both similarly structured and cantilevered. A load to be measured is applied to the free end of the scale cell and a standard weight is attached to the free end of the dummy cell. Analog electrical signals from these cells are converted to digital data. The effect of the standard weight is removed from the digital data from the dummy cell to obtain the effect of external vibrations which effect is multiplied by a suitable coefficient dependent on the applied load and subtracted from the digital data from the scale cell.

摘要翻译： 称重设备具有比例单元和虚拟单元，两者都类似结构化和悬臂式。 要测量的负载被施加到秤单元的自由端，并且将标准重量连接到虚拟单元的自由端。 来自这些单元的模拟电信号被转换成数字数据。 从虚拟单元的数字数据中去除标准权重的影响，以获得外部振动的效果，其效果乘以取决于所施加的负载的合适系数，并从量表单元的数字数据中减去。

公开(公告)号：US5569887A

公开(公告)日：1996-10-29

申请号：US390346

申请日：1995-02-17

申请人： Kazufumi Naito ,  Yoshihiro Nakamura ,  Hiroyuki Konishi

发明人： Kazufumi Naito ,  Yoshihiro Nakamura ,  Hiroyuki Konishi

IPC分类号： G01G23/10 ,  G01G21/10 ,  G01G3/08 ,  G01L1/04

CPC分类号： G01G23/10

摘要： A weighing device has not only a scale cell which weighs an object and outputs a weight signal indicative of the measured weight value but also a vibration-detecting load cell for detecting the vibrations of the floor to which the scale cell is set such that the effects of the floor vibrations can be subtracted from the weight value detected by the scale cell. The vibration-detecting load cell has attenuation-adjusting members adhesively attached to strain-generating parts of its load-sensitive element such that the attenuation constant of the load cell is thereby increased at least by a factor of 2. The usable dynamic range of the load cell can thus be increased while the load cell is kept compact. Butyl rubber members can be used for this purpose.

摘要翻译： 称重装置不仅具有称重物体的秤单元，并且输出表示测量重量值的重量信号，而且还包括用于检测秤单元设置的地板的振动的振动检测负载单元，使得效果 可以从由刻度尺检测出的重量值中减去地板振动。 振动检测传感器具有粘附于其负载敏感元件的应变产生部件上的衰减调节部件，使得称重传感器的衰减常数因此至少增加2倍。可用的动态范围 因此，当称重传感器保持紧凑时，测力传感器可以增加。 丁基橡胶构件可用于此目的。

公开(公告)号：US5117929A

公开(公告)日：1992-06-02

申请号：US619216

申请日：1990-11-28

申请人： Yoshihiro Nakamura ,  Kazufumi Naito

发明人： Yoshihiro Nakamura ,  Kazufumi Naito

IPC分类号： G01G23/37 ,  G01G3/14 ,  G01G3/147 ,  G01G23/10

CPC分类号： G01G23/10 ,  G01G3/1414 ,  G01G3/147

摘要： A weighing apparatus has a scale cell and a dummy cell, both similarly structured and cantilevered. A load to be measured is applied to the free end of the scale cell and a standard weight is attached to the free end of the dummy cell. Analog electrical signals from these cells are converted to digital data. The effect of the standard weight is removed from the digital data from the dummy cell to obtain the effect of external vibrations which effect is multiplied by a suitable coefficient dependent on the applied load and subtracted from the digital data from the scale cell.

公开(公告)号：US20120085586A1

公开(公告)日：2012-04-12

申请号：US13376324

申请日：2010-06-23

申请人： Kazufumi Naito ,  Hiroshi Suzawa

发明人： Kazufumi Naito ,  Hiroshi Suzawa

IPC分类号： G01G23/06

CPC分类号： G01G3/16 ,  G01G21/06 ,  G01G21/184 ,  G01G21/23 ,  G01G21/242

摘要： The present invention is to provide a platform scale including a plurality of component force damping devices assembled therein for making high precision weighing. The platform scale for weighing an object to be weighed by supporting a support member that supports the object to be weighed by a plurality of load detection units 301,302 includes at least four component force damping devices 321˜324, each comprising an arrangement of a plurality of needle bearings disposed in parallel and a pair of opposed plates for sandwiching the arrangement of the needle bearings 63 so that the pair of plates make a relative movement in a direction of the arrangement of the needle bearings. The four component force damping devices 321˜324 are in contact with the support member at four locations that form a rectangle. Directions of the relative movement of any two component force damping devices locating at the same side of the rectangle are different, while directions of the relative movement of any two component force damping devices at diagonal locations of the rectangle are identical. Even in case of bending of the support member in any direction, the component force damping devices are able to release the horizontal component force due to such bending.

摘要翻译： 本发明提供一种平台秤，其包括组装在其中的多个分力抑制装置，用于进行高精度称重。 通过支撑由多个负载检测单元301,302支撑被测量物体的支撑构件来称重待称重物体的平台秤包括至少四个分力阻尼装置321〜324，每个包括多个 平行布置的滚针轴承和用于夹持滚针轴承63的布置的一对相对的板，使得该对板在滚针轴承的布置方向上进行相对运动。 四组分力阻尼装置321〜324在形成矩形的四个位置处与支撑构件接触。 定位在矩形同一侧的任何两个分量的力阻尼装置的相对运动的方向是不同的，而矩形对角线位置处的任何两个分力的阻尼装置的相对运动的方向相同。 即使在支撑构件沿任何方向弯曲的情况下，组件力阻尼装置也能够由于这种弯曲而释放水平分力。

公开(公告)号：US06684487B2

公开(公告)日：2004-02-03

申请号：US09974802

申请日：2001-10-12

申请人： Kazufumi Naito ,  Kenji Imai ,  Matsuo Zama ,  Naoki Sasaki

发明人： Kazufumi Naito ,  Kenji Imai ,  Matsuo Zama ,  Naoki Sasaki

IPC分类号： H01C1728

CPC分类号： G01L1/2287 ,  Y10T29/49073 ,  Y10T29/49099 ,  Y10T29/49101 ,  Y10T29/49103

摘要： A load cell is constructed with several strain gauges. Each of the strain gauges are formed with a meandering conductive portion on a substrate or base member. Portions of the meandering conductive layer defines a predetermined tab ratio. The base member is formed with a predetermined amount of filler and the tab ratio is pre-determined such that the creep characteristic of the strain gauge is substantially zero in a load cell having a generally low rated load.

摘要翻译： 称重传感器由几个应变仪构成。 每个应变片在基底或基底构件上形成有曲折的导电部分。 曲折导电层的一部分限定了预定的拉伸比。 基底部件形成有预定量的填料，并且拉伸比预先确定，使得应变仪的蠕变特性在具有普通低额定载荷的测力传感器中基本为零。

公开(公告)号：US5756943A

公开(公告)日：1998-05-26

申请号：US657767

申请日：1996-05-31

申请人： Kazufumi Naito ,  Michito Utsunomiya ,  Hiroyuki Konishi ,  Shotaro Tamai

发明人： Kazufumi Naito ,  Michito Utsunomiya ,  Hiroyuki Konishi ,  Shotaro Tamai

IPC分类号： G01G3/14 ,  G01L1/22 ,  G01G3/08

CPC分类号： G01L1/2243 ,  G01G3/1412

摘要： A load cell for use in detecting a load imposed thereon which includes a body (30) in which strain is induced in proportion to the imposed load, and a strain sensor (40) for detecting the strain induced in the body (30). The body (30) is a plate member having a longitudinal axis (X) and the strain sensor (40) is mounted on the body (30). The body (30) has an opening (31) defined therein at a location intermediate of the length of the body (30) so as to define a fixed rigid body forming region (70) at one end thereof, a movable rigid body forming region (71) at the opposite end thereof opposite to the fixed rigid body forming region (70) in the longitudinal direction (X), and side connecting strips (30b, 30b) spaced by the opening (31) from each other in a widthwise direction (Y) of the opening (31) and connecting the fixed rigid body forming region (70) and the movable rigid body forming region (71) together. The strain sensor (40) has opposite ends (41c) spaced in the longitudinal direction (X) and mounted on the body (30) with its opposite ends (41c) fixed to the fixed rigid body forming region (70) and the movable rigid body forming region (71).

摘要翻译： 一种用于检测施加在其上的负载的测力传感器，其包括与所施加的负载成比例地引起应变的体（30）;以及用于检测在体（30）中诱发的应变的应变传感器（40）。 主体（30）是具有纵向轴线（X）的板件，并且应变传感器（40）安装在主体（30）上。 主体（30）在其主体（30）的长度的中间位置处具有限定在其中的开口（31），以便在其一端限定固定的刚体形成区域（70），可移动刚体形成区域 （70）的与所述固定的刚性体形成区域（70）的长度方向（X）相反的另一端的宽度方向（71）和由所述开口（31）在宽度方向上彼此隔开的侧连接条（30b，30b） （31）的开口（Y）并将固定的刚体形成区域（70）和可动刚体形成区域（71）连接在一起。 应变传感器（40）具有在纵向方向（X）上间隔开并安装在主体（30）上的相对端（41c），其相对端（41c）固定在固定的刚体形成区域（70）上， 身体形成区域（71）。

公开(公告)号：US5656800A

公开(公告)日：1997-08-12

申请号：US719032

申请日：1996-09-24

申请人： Kazufumi Naito ,  Kouji Itoh

发明人： Kazufumi Naito ,  Kouji Itoh

IPC分类号： G01G23/37 ,  G01G19/22 ,  G01G13/00

CPC分类号： G01G23/3714

摘要： In order to increase both the weighing accuracy and the weighing speed of a weighing apparatus, a delta.multidot.sigma analog-to-digital converter (4) having a cut-off frequency higher than that of an analog filter (3) is connected with the output of the analog filter (3). Also, in order to perform a quick drift correction of an amplifier (2), the analog filter (3) is selectively switchable so as to perform a filtering function during a weighing mode and to perform a buffering function during a correction mode correcting means (52) is provided for storing the digital signal from the delta.multidot.sigma analog-to-digital converter (4) as a drift signal (df) during the correction mode and for providing a corrected digital weight signal (d2) by subtracting the drift signal (dr) from the digital weight signal (d1) obtained from the delta.multidot.sigma-type analog-to-digital converter (4) during the weighing mode.

摘要翻译： 为了增加称重装置的称重精度和称重速度，具有比模拟滤波器（3）的截止频率更高的截止频率的三角洲模数转换器（4）与 模拟滤波器（3）。 此外，为了进行放大器（2）的快速漂移校正，可以选择性地切换模拟滤波器（3），以便在称重模式期间执行滤波功能，并且在校正模式校正装置期间执行缓冲功能 52）被提供用于在校正模式期间将来自三角洲模数转换器（4）的数字信号作为漂移信号（df）存储，并通过减去漂移信号（dr）来提供校正的数字加权信号（d2） ）从称重模式期间从三角型模数转换器（4）获得的数字加权信号（d1）。

公开(公告)号：US4677422A

公开(公告)日：1987-06-30

申请号：US679999

申请日：1984-12-10

申请人： Kazufumi Naito

发明人： Kazufumi Naito

IPC分类号： H03M1/12 ,  H03M1/00

CPC分类号： H03M1/1215

摘要： A multiple input signal high-speed analog-digital converter circuit for digitizing, by means of an A/D converter, an output signal from a multiplexer which successively delivers multiple input signals applied thereto. Two sample/hold circuits which receive the output signal from the multiplexer repeatedly sample and hold the signal, and a changeover switch keeps one of the sample/hold circuits on hold while the other sample/hold circuit samples the output signal from the multiplexer. While one of the sample/hold circuits is holding the signal, the other sample/hold circuit is sampling another signal so that the A/D conversion time of multiple input signals is capable of being reduced by the sampling time.

摘要翻译： 一种用于通过A / D转换器数字化来自多路复用器的输出信号的多输入信号高速模拟 - 数字转换器电路，其连续递送施加到其上的多个输入信号。 接收来自多路复用器的输出信号的两个采样/保持电路反复采样和保持信号，而转换开关将采样/保持电路中的一个保持在保持状态，而另一个采样/保持电路从多路复用器采样输出信号。 当其中一个采样/保持电路保持信号时，另一个采样/保持电路对另一个信号进行采样，使得多个输入信号的A / D转换时间能够减少采样时间。