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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
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。
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公开(公告)号：US5946795A
公开(公告)日：1999-09-07
申请号：US910537
申请日：1997-07-24
申请人： David A. Altemir
发明人： David A. Altemir
CPC分类号： G01G3/16 , Y10T29/4902
摘要： A micromechanical oscillating mass balance and method adapted for measuring minute quantities of material deposited at a selected location, such as during a vapor deposition process. The invention comprises a vibratory composite beam which includes a dielectric layer sandwiched between two conductive layers. The beam is positioned in a magnetic field. An alternating current passes through one conductive layers, the beam oscillates, inducing an output current in the second conductive layer, which is analyzed to determine the resonant frequency of the beam. As material is deposited on the beam, the mass of the beam increases and the resonant frequency of the beam shifts, and the mass added is determined.
摘要翻译： 一种微机械振荡质量平衡和适于测量在选定位置沉积的微量的诸如在气相沉积过程中的材料的方法。 本发明包括振动复合梁，其包括夹在两个导电层之间的电介质层。 光束位于磁场中。 交流电流通过一个导电层，光束振荡，引起第二导电层中的输出电流，该电流被分析以确定光束的谐振频率。 当材料沉积在光束上时，光束的质量增加，光束的谐振频率发生偏移，并且确定了添加的质量。
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公开(公告)号：US5929390A
公开(公告)日：1999-07-27
申请号：US527090
申请日：1995-09-12
申请人： Kazufumi Naito , Takao Suzuki , Taro Hijikata
发明人： Kazufumi Naito , Takao Suzuki , Taro Hijikata
CPC分类号： G01L1/2281 , G01G3/1412 , G01L1/2243 , G01L1/2262 , G01L1/2275
摘要： A load cell includes a strain inducing element having a fixed rigid body fixedly secured to a base support, and a plurality of transverse beams spaced one above the other and connecting the fixed and movable rigid bodies together. Each of the transverse beams has first and second strain generating areas defined therein in spaced relation to each other at respective locations adjacent the fixed and movable rigid bodies. A bridge circuit for outputting a load signal of a magnitude proportional to strains generated at the strain generating areas includes strain gauges for detecting the strains generated at the strain generating areas, adjusting elements for adjusting a balance of the bridge circuit, and lines connecting them together. A circuit portion of the bridge circuit which includes at least the strain gauge and some of the lines is formed in a predetermined pattern on one surface of the strain inducing element so as to straddle between the first and second strain generating areas. Not only is the circuit portion symmetrical with respect to a point intermediate between the first and second strain generating areas, but also the strain inducing element has left and right portions, including the fixed and movable rigid bodies, which are symmetrical to each other.
摘要翻译： 测力传感器包括应变诱导元件，其具有固定地固定到基座支撑件上的固定刚体，以及多个横向梁，其横向间隔开并将固定和移动的刚体连接在一起。 每个横梁具有限定在其中的第一和第二应变产生区域，其中相邻于固定和可移动刚体的相应位置彼此间隔开。 用于输出与在应变产生区域产生的应变成比例的大小的负载信号的桥接电路包括用于检测在应变产生区域处产生的应变的应变计，用于调整桥接电路的平衡的调整元件以及将它们连接在一起的线 。 至少包括应变计和一些线路的电路电路的电路部分以预定的图案形成在应变诱发元件的一个表面上，以跨越第一和第二应变产生区域。 电路部分不仅相对于第一和第二应变产生区域之间的点对称，而且应变引发元件还具有彼此对称的左右部分，包括固定和移动的刚体。
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公开(公告)号：US5900592A
公开(公告)日：1999-05-04
申请号：US919949
申请日：1997-08-29
CPC分类号： G01G7/06
摘要： A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast inventories of stored nuclear material can be continuously monitored and inventoried of minimal cost.
摘要翻译： 负载感测系统在广泛可变的环境中可以廉价地监测储存的核材料的重量和温度长时间。 该系统可以包括将重量和温度编码成经由同轴电缆发送到远程监视器的数字信号的静电负载传感器。 相同的电缆用于为称重传感器供电。 当使用多个称重传感器时，存储的核材料的大量库存可以以最低的成本进行连续监测和盘点。
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公开(公告)号：US5894409A
公开(公告)日：1999-04-13
申请号：US863206
申请日：1997-05-27
申请人： Junko Tanaka
发明人： Junko Tanaka
CPC分类号： H01R12/62 , G01G19/08 , G01L1/127 , H01R13/6683
摘要： A sensing element lead wire connecting structure is provided for stably connecting conductors, forming the coil of a sensing element for load measurement, with the lead wires for external connection. In the sensing element lead wire connecting structure, a flexible circuit board is fixed to a base member receiving an applied load to be measured. Conductive patterns are formed on the circuit board and are electrically connected to the lead wires for externally outputting the load measurement.
摘要翻译： 提供感测元件引线连接结构，用于稳定地连接导体，形成用于负载测量的感测元件的线圈与用于外部连接的引线。 在感测元件引线连接结构中，柔性电路板固定到接收所测量的施加负载的基座构件。 导电图案形成在电路板上，并与导线电连接，用于外部输出负载测量。
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公开(公告)号：US5805467A
公开(公告)日：1998-09-08
申请号：US893406
申请日：1997-07-11
申请人： James L. Richards
发明人： James L. Richards
CPC分类号： G01G23/01 , G01G23/3707 , G01G3/1416
摘要： A weight measuring apparatus comprising a plurality of load sensors, together with an input network, a multiplexer, a reference, an analog to digital converter, and a processor, wherein the input network includes an analog summing network and direct sensor connections to the multiplexer. The multiplexer is arranged to permit measurement of the sum signal, a reference signal, and each direct load sensor signal in a prescribed sequence. The multiplexed signals are converted to digital and processed to derive a weight estimate based on the multiplexed measurements and a system error model. The prescribed measurement sequence permits measurement of the sum signal more frequently than each of the direct signals. A method is described for deriving correction factors for the error model comprising the placing of calibration weights primarily on each weight sensor and solving the system of simultaneous equations for the resulting correction factors.
摘要翻译： 一种重量测量装置，包括多个负载传感器，以及输入网络，多路复用器，参考，模数转换器和处理器，其中输入网络包括模拟求和网络和到多路复用器的直接传感器连接。 复用器被布置成允许以规定的顺序测量和信号，参考信号和每个直接负载传感器信号。 复用的信号被转换为数字并被处理以基于多路测量和系统误差模型导出权重估计。 规定的测量序列允许比每个直接信号更频繁地测量和信号。 描述了一种用于导出误差模型的校正因子的方法，包括将校准权重主要放置在每个权重传感器上并且求解所得到的校正因子的联立方程组。
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公开(公告)号：US5780777A
公开(公告)日：1998-07-14
申请号：US813793
申请日：1997-03-06
申请人： Klaus Peter Selig
发明人： Klaus Peter Selig
CPC分类号： G01G3/1414 , G01G23/3707
摘要： In order, in a weighing device, in particular for use in high-resolution scales, comprising an elastically deformable force transducer, a sensor arrangement for converting the deformation of the force transducer caused on account of a force F acting on the force input section of the force transducer into an electrical weighing signal and a processing unit for calculating a weighing signal corrected by the hysteresis error of the force transducer, to be able to realize a correction of the hysteresis error even with the short-term load variations occurring in practice in high-resolution scales at an acceptable cost, it is suggested that the sensor arrangement comprise a first testing unit for the high-resolution determination of the weighing signal "S" and a second testing unit for the determination of the elastic deformation of the force transducer in small time increments (high time resolution), wherein the processing unit corrects the high-resolution weighing signal of the first testing unit by the hysteresis error on the basis of data made available by the second testing unit.
摘要翻译： 为了在特别是用于高分辨率尺度的称重装置中，包括可弹性变形的力传感器，传感器装置用于转换由于作用在力输入部分的力输入部分上的力F而引起的力传感器的变形 力传感器成为电加重信号，以及用于计算由力传感器的滞后误差校正的称重信号的处理单元，即使在实践中发生的短期负载变化也能够实现滞后误差的校正 以可接受的成本进行高分辨率刻度，建议传感器装置包括用于高分辨率确定称重信号“S”的第一测试单元和用于确定力传感器的弹性变形的第二测试单元 以小时间增量（高时间分辨率），其中处理单元校正第一测试的高分辨率称重信号 基于由第二测试单元提供的数据的滞后误差来确定。
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公开(公告)号：US5724267A
公开(公告)日：1998-03-03
申请号：US674343
申请日：1996-07-02
申请人： James L. Richards
发明人： James L. Richards
CPC分类号： G01G23/01 , G01G23/3707 , G01G3/1416
摘要： A weight measuring apparatus comprising a plurality of load sensors, together with an input network, a multiplexer, a reference, an analog to digital converter, and a processor, wherein the input network includes an analog summing network and direct sensor connections to the multiplexer. The multiplexer is arranged to permit measurement of the sum signal, a reference signal, and each direct load sensor signal in a prescribed sequence. The multiplexed signals are converted to digital and processed to derive a weight estimate based on the multiplexed measurements and a system error model. The prescribed measurement sequence permits measurement of the sum signal more frequently than each of the direct signals. A method is described for deriving correction factors for the error model comprising the placing of calibration weights primarily on each weight sensor and solving the system of simultaneous equations for the resulting correction factors.
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公开(公告)号：US5721398A
公开(公告)日：1998-02-24
申请号：US521307
申请日：1995-08-30
CPC分类号： G01G23/005
摘要： An overload protection device for a precision balance includes a measuring cell having a short travel distance, a parallel guide unit connected to a load receiving unit, and an auxiliary parallel guide unit whose guide members are connected to the load receiving unit, on the one hand, and to a weighing dish carrier member, on the other hand, wherein the guide members of the auxiliary parallel guide unit are pretensioned by at least one spring and form a rigid unit with the load receiving unit within the loading range of the balance. The auxiliary parallel guide unit includes an upper guide member and a lower guide member, wherein the two ends of the guide members of the auxiliary parallel guide unit on the side of the weighing dish are connected to each other by at least one guide bolt fastened to the upper guide member and the lower guide member. The guide bolt extends with play through a support plate which is fixedly connected to the load receiving unit of the measuring cell. The at least one spring is mounted between the upper guide member and the support plate.
摘要翻译： 一种用于精密平衡的过载保护装置包括具有短行程距离的测量单元，连接到负载接收单元的平行导向单元和引导构件连接到负载接收单元的辅助平行导向单元，一方面 另一方面，辅助平行导向单元的引导构件通过至少一个弹簧预张紧并与负载接收单元形成刚性单元在天平的负载范围内，并且配重到称重盘承载构件。 辅助平行导向单元包括上引导构件和下引导构件，其中辅助平行导向单元的导向构件在称重盘一侧的两端通过至少一个固定到 上引导构件和下引导构件。 引导螺栓通过固定地连接到测量单元的负载接收单元的支撑板而延伸。 所述至少一个弹簧安装在所述上引导构件和所述支撑板之间。
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公开(公告)号：US5672850A
公开(公告)日：1997-09-30
申请号：US457579
申请日：1995-06-01
申请人： Chung-Kuang Liu
发明人： Chung-Kuang Liu
CPC分类号： G01G7/06
摘要： An electrostatic capacitance type weight sensor includes a sheet-like upper support plate and a sheet-like lower support plate with their respective end portions secured together and having a pair of electrodes sandwiched therebetween. The upper support plate is coupled to a loaded element. Either sides of the upper and lower support plates adjacent their respective end portions are provided with bridge type elastic arms having a surface area smaller than that of a central portion of the upper support plate and the lower support plates. When the loaded element carries a load, causing one of the end portions of the upper support plate and the lower support plate to displace downwardly, the elastic arms flex in compensation so that the electrodes remain parallel to each other even when the space therebetween varies, thus enhancing measuring precision in addition to providing a thin and easily assembled weight sensor.
摘要翻译： 静电电容型重量传感器包括片状上支撑板和片状下支撑板，其各自的端部固定在一起并且夹在其间的一对电极。 上支撑板联接到加载元件。 上支撑板和下支撑板的相邻端部相邻的两侧均设置有表面积小于上支撑板和下支撑板的中心部分的桥型弹性臂。 当加载的元件承载负载时，使上支撑板和下支撑板的一个端部向下移位，弹性臂被补偿，使得即使当它们之间的空间变化时，电极保持彼此平行， 从而提高了测量精度，同时提供了薄而容易组装的重量传感器。
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