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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
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。
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12.发明授权Load cell and weighing apparatus including a strain sensor welded to a strain inducing device 失效称重传感器和称重设备包括焊接在应变诱导装置上的应变传感器
公开(公告)号：US5539158A
公开(公告)日：1996-07-23
申请号：US341032
申请日：1994-11-15
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。
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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
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。
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公开(公告)号：US4545445A
公开(公告)日：1985-10-08
申请号：US628305
申请日：1984-07-06
申请人： Kazufumi Naito
发明人： Kazufumi Naito
CPC分类号： G01G23/015 , G01G23/012 , G01G23/3707
摘要： There is provided a system for adjusting the span of an electronic scale having a double-integrating A/D converter for converting a weight signal into a digital signal. The double-integrating A/D converter has a software-implemented timer for controlling a primary integrating time. The operation time of the software-implemented timer is adjusted linearly or in steps so that a digital value at the time a weight is placed on the scalepan of the scale will correspond to the weight. The adjustment of the operation time of the software-implemented timer is utilized to adjust the differences between gravitational accelerations corresponding to different weights in geographical areas on the earth.
摘要翻译： 提供了一种用于调整具有用于将加权信号转换为数字信号的双积分A / D转换器的电子秤的跨度的系统。 双积分A / D转换器具有软件实现的定时器，用于控制初级积分时间。 软件实现的定时器的操作时间线性地或逐步地调整，使得在刻度的刻度上放置一个权重时的数字值将对应于重量。 利用软件实现的定时器的操作时间的调整来调整地球上地理区域中与不同权重相对应的重力加速度之间的差异。
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公开(公告)号：US08853568B2
公开(公告)日：2014-10-07
申请号：US13376332
申请日：2010-06-23
摘要： (Problem)To provide a high precision platform scale(Means to Solve the Problem)A platform scale for weighing an object to be weighed by supporting it by a plurality of load detection sections, wherein the load detection section comprises a load sensor 40 having a block body 42 for transmitting an applied load to a tuning fork vibrator 41 coupled to the block body 42 by reducing the load, a circuit board having fabricated thereon circuitry for converting a signal from the tuning fork vibrator into a digital signal and a sensor case 33 for accommodating the load sensor and the circuit board. The sensor case 33 is made by casting stainless material by a lost wax process and is directly coupled to parallel base frames 20 for maintaining the distance between the base frames. The sensor case has sufficient mechanical strength and also acts as a structural member for the base frames, thereby reducing the number of components and the height of a weighing table.
摘要翻译： （问题）提供高精度的平台秤（解决问题的手段）一种用于通过多个负载检测部支撑来称重被测量物体的平台秤，其中负载检测部分包括负载传感器40，负载传感器40具有 块体42，用于通过减小负载将施加的载荷传递到耦合到块体42的音叉振动器41;电路板，其上制造有用于将来自音叉振子的信号转换为数字信号的电路和传感器壳体33 用于容纳负载传感器和电路板。 传感器壳体33通过用失蜡工艺铸造不锈钢材料而制成，并且直接连接到平行的底座框架20，以保持基架之间的距离。 传感器外壳具有足够的机械强度，并且还用作基架的结构构件，从而减少了配重的数量和称重台的高度。
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16.发明申请公开(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
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。
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17.发明授权Method of and means for correcting effects of floor vibrations on weight signals from a weighing machine 失效校正地板振动对称重机重量信号影响的方法和装置
公开(公告)号：US6034334A
公开(公告)日：2000-03-07
申请号：US421491
申请日：1995-04-12
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 。
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公开(公告)号：US5756938A
公开(公告)日：1998-05-26
申请号：US421276
申请日：1995-04-13
申请人： Katsuaki Kono , Kazufumi Naito
发明人： Katsuaki Kono , Kazufumi Naito
CPC分类号： G01G3/147
摘要： A weight measuring apparatus which comprises an input signal switching circuit for selectively outputting analog signals input to a plurality of channels, analog-to-digital converter for converting an analog signal output from the input signal switching circuit into a digital signal, and a digital signal processing circuit for filtering a digital quantity output from the analog-to-digital converter for each channel, or filtering digital quantities from a plurality of channels after these digital quantities have been combined together.
摘要翻译： 一种重量测量装置，包括用于选择性地输出输入到多个通道的模拟信号的输入信号切换电路，用于将从输入信号切换电路输出的模拟信号转换成数字信号的模数转换器，以及数字信号 处理电路，用于对每个信道从模数转换器输出的数字量进行滤波，或者在将这些数字量组合在一起之后对来自多个通道的数字量进行滤波。
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公开(公告)号：US5369875A
公开(公告)日：1994-12-06
申请号：US165938
申请日：1993-12-14
CPC分类号： G01L1/2206 , G01L1/2243 , G01L1/2287 , Y10T29/49103 , Y10T29/49789
摘要： A method of manufacturing individual strain sensors (20) each comprised of a generally rectangular substrate (21) having first and second major surfaces opposite to each other, a strain detecting element (23) formed on the first major surface of the substrate and having at least one pair of strain sensing areas (23a), and a pair of grooves (24) defining respective areas (21a) of low rigidity and formed in the second major surface of the substrate (21) at respective locations adjacent the opposite ends of the substrate (21) while extending across the width of the substrate with the strain sensing areas (23a) of the strain detecting element (23) positioned in register with the respective grooves (24). The strain sensors (20) are prepared from a single plate material (30) of any suitable size having first and second surfaces opposite to each other and eventually forming respective substrates (21) of the individual strain sensors (20). A plurality of spaced groove segments (31) are formed on the second surface of the plate material (30) so as to extend parallel to each other, and a plurality of strain detecting elements (23) are subsequently formed on the first surface of the plate material (30) in a substantially matrix pattern so as to assume a predetermined positional relationship with respective positions of the groove segments (31). Thereafter, the plate material (30) is cut along cutting lines (b) extending in two different directions to separate the individual strain sensors (20).
摘要翻译： 一种制造单个应变传感器（20）的方法，每个应变传感器（20）由具有彼此相对的第一和第二主表面的大致矩形的基板（21）构成，应变检测元件（23）形成在基板的第一主表面上，并具有 至少一对应变感测区域（23a）和限定低刚度的相应区域（21a）的一对凹槽（24），并且形成在基板（21）的第二主表面中的相邻位置处的相邻位置处 基板（21），同时延伸穿过基板的宽度，应变检测元件（23）的应变检测区域（23a）与相应的凹槽（24）对准。 应变传感器（20）由具有彼此相对的第一和第二表面的任何合适尺寸的单个板材（30）制备，并且最终形成各个应变传感器（20）的相应基板（21）。 在板材（30）的第二表面上形成多个间隔开的槽段（31），以便彼此平行地延伸，并且随后在第一表面上形成多个应变检测元件（23） 平板材料（30）以基本上矩形的方式形成，以便与槽段（31）的各个位置呈现预定的位置关系。 此后，沿着沿两个不同方向延伸的切割线（b）切割板材（30），以分离各个应变传感器（20）。
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公开(公告)号：US4926359A
公开(公告)日：1990-05-15
申请号：US346288
申请日：1989-05-01
IPC分类号： G01G23/10
CPC分类号： G01G23/10
摘要： A weight sensing apparatus has a weight sensor provided with a load cell for producing an output signal indicative of the weight of an article, and a support for supporting the weight sensor. The apparatus includes oscillation sensing means provided in the vicinity of the load cell for producing an output signal indicative of an oscillation component caused by floor oscillation, a summing amplifier for adding the output signal from the load cell and a signal which is the inverse of the output signal from the oscillation sensing means, and signal processing means for processing the output of the summing amplifier to remove an oscillation component contained in the output signal from the load cell. The oscillation component is caused by oscillation received by the weight sensor from its surroundings.
摘要翻译： 重量检测装置具有配重传感器，该重量传感器设置有用于产生表示物品重量的输出信号的称重传感器和用于支撑重量传感器的支撑件。 该装置包括设置在测力传感器附近的振荡感测装置，用于产生指示由地面振荡引起的振荡分量的输出信号，用于将来自测力传感器的输出信号相加的加法放大器和与负载单元相反的信号 来自振荡感测装置的输出信号的信号处理装置和用于处理加法放大器的输出以去除来自测力传感器的输出信号中包含的振荡分量的信号处理装置。 振动分量由重量传感器从其周围环境接收的振荡引起。
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