公开(公告)号：US5515737A

公开(公告)日：1996-05-14

申请号：US436496

申请日：1995-05-08

申请人： Kenji Imai ,  Kazufumi Naito

发明人： Kenji Imai ,  Kazufumi Naito

IPC分类号： G01G3/14 ,  G01B7/16 ,  G01G3/18 ,  G01G23/37 ,  G01L1/22

CPC分类号： G01G23/3707 ,  G01G3/18

摘要： To facilitate the adjustment of the accuracy and servicing maintenance of the electronic weighing apparatus, the weighing apparatus comprises a load cell and a signal processing circuit for processing a load signal from the load cell to provide a weight signal indicative of the load. The load cell includes a strain inducing element capable of producing strains in proportion to the load imposed thereon, and a bridge circuit, having a pair of strain gauges fixed on the stain inducing element and a plurality of resistors. A load signal is taken from a junction between the strain gauges and reference voltage signals are taken from junctions between the resistors. The load signal and the reference voltage signals are supplied to the signal processing circuit. If each of the strain gauges is employed in the form of a temperature compensating resistor having a characteristic effective to compensate for both of the temperature coefficient of thermal expansion of the strain inducing element and the temperature coefficient of the Young's modulus, the number of necessary component parts can be reduced.

摘要翻译： 为了便于电子称重装置的精度和维修维护的调整，称重装置包括负载传感器和信号处理电路，用于处理来自称重传感器的负载信号，以提供指示负载的加权信号。 负载传感器包括能够产生与施加在其上的负载成比例的应变诱发元件，以及桥接电​​路，其具有固定在污染诱导元件上的一对应变计和多个电阻器。 负载信号取自应变计之间的接点，参考电压信号取自电阻之间的结。 负载信号和参考电压信号被提供给信号处理电路。 如果每个应变计采用温度补偿电阻器的形式，其具有有效补偿应变诱发元件的温度系数和杨氏模量的温度系数的特性，必要部件的数量 零件可以减少。

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：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：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。

公开(公告)号：US4624331A

公开(公告)日：1986-11-25

申请号：US687174

申请日：1984-12-28

申请人： Kazufumi Naito

发明人： Kazufumi Naito

IPC分类号： G01G23/00 ,  G01G23/10 ,  G01G23/37 ,  G01G19/00

CPC分类号： G01G23/00 ,  G01G23/10 ,  G01G23/3714

摘要： A load sensor includes a scale cell for producing an output signal corresponding to the weight of an article, and a dummy cell, provided near the scale cell, for producing a noise signal output ascribable to floor vibration. A correcting circuit extracts a signal proportional to a DC component contained in the output signal of the scale cell and, on the basis of the extracted signal, corrects the output signal of the dummy cell to the noise level of a floor vibration component of the scale cell. The corrected dummy cell noise signal is added in opposite-phase relation to the scale cell output signal, so that the floor vibration noise contained in the scale cell output signal is cancelled out by the corrected noise signal of the dummy cell.

摘要翻译： 负载传感器包括用于产生对应于物品的重量的输出信号的秤单元和设置在刻度单元附近的用于产生归因于地板振动的噪声信号输出的虚拟单元。 校正电路提取与比例单元的输出信号中包含的DC分量成比例的信号，并且基于提取的信号将虚拟单元的输出信号校正为比例尺的地板振动分量的噪声水平 细胞。 校正后的虚设单元噪声信号以与比例单元输出信号相反的相位关系相加，从而通过虚拟单元的校正噪声信号来消除包含在比例单元输出信号中的地板振动噪声。

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：US5539158A

公开(公告)日：1996-07-23

申请号：US341032

申请日：1994-11-15

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

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

IPC分类号： G01G3/14 ,  G01L1/22

CPC分类号： G01L1/2243 ,  G01G3/1412

摘要： A load cell for detecting a load imposed thereon and for improving the productivity thereof. The load cell includes a strain inducing device (1) made of metal and including a strain generating area (6) for generating a strain as a function of the load, and a strain sensor (40) including a metal substrate (41) having a strain detecting element (43) formed thereon for detecting the strain generated at the strain generating area (6) of the strain inducing means (1). The strain sensor (40) is mounted on the strain inducing device (1) with the metal substrate (41) welded thereto.

摘要翻译： 用于检测施加在其上的负载并用于提高其生产率的测力传感器。 测力传感器包括由金属制成的应变诱导装置（1），包括用于产生作为负载的函数的应变的应变产生区域（6），以及包括金属基板（41）的应变传感器（40） 形成在其上的应变检测元件（43）用于检测在应变诱发装置（1）的应变产生区域（6）处产生的应变。 应变传感器（40）安装在应变诱导装置（1）上，金属基底（41）焊接在应变诱导装置（1）上。

公开(公告)号：US4694920A

公开(公告)日：1987-09-22

申请号：US772244

申请日：1985-09-03

申请人： Kazufumi Naito ,  Setsuo Haze ,  Hideo Nobutugu ,  Yukio Nakagawa ,  Seiji Yamada ,  Shuji Murata

发明人： Kazufumi Naito ,  Setsuo Haze ,  Hideo Nobutugu ,  Yukio Nakagawa ,  Seiji Yamada ,  Shuji Murata

IPC分类号： G01G19/32 ,  G01G19/393 ,  G01G23/01 ,  G01G23/16 ,  G01G19/22 ,  G01G19/52 ,  G01G23/14

CPC分类号： G01G19/393 ,  G01G19/32 ,  G01G23/01 ,  G01G23/163

摘要： A combinational weighing system with a plurality of weighing devices employs at least three central processing units such as microprocessors. One keeps monitoring the weight information from the weighing devices and analyzes stability of weight data. Another one controls the charging and discharging of the weighing devices. The third performs combinational computation to select a combination. The system has increased flexibility regarding operation and adjustments, and allows efficient methods of zero-point and span adjustment of weighing devices. Its compact unitized input-output unit allows the user to operate the system interactively.

摘要翻译： 具有多个称重装置的组合称重系统采用至少三个中央处理单元，例如微处理器。 人们一直在监测称重设备的重量信息，并分析重量数据的稳定性。 另一个控制称重装置的充放电。 第三个执行组合计算以选择组合。 该系统增加了操作和调整的灵活性，并且允许称重装置的零点和跨度调整的有效方法。 其紧凑的单元化输入 - 输出单元允许用户以交互方式操作系统。