公开(公告)号：US06147312A

公开(公告)日：2000-11-14

申请号：US166113

申请日：1998-10-05

Applicant: Harry E. Lockery

Inventor： Harry E. Lockery

IPC: G01G3/142 ,  G01L1/22 ,  G01G3/14 ,  G01G19/56

CPC classification number: G01L1/2268 ,  G01G3/142 ,  G01L1/2262

Abstract: A strain gage bridge circuit and method for sensitivity equalization, particularly suitable for load cell devices for precision measurement. The sensitivity of opposing half-bridges in a strain gage bridge circuit is equalized by a pair of equal, fixed resistors connected across a bridge diagonal formed by the two half-bridges, and a third resistor connecting the junction of the two equal, fixed resistors to the center of the half-bridge with the highest sensitivity. The effective shunting of the most sensitive half bridge can be changed by changing the value of the third resistor, while the ratio of the two equivalent shunting resistance values remain exactly constant. The total load on the bridge diagonal also remains constant when the value of the third resistor is changed. Both sets of orthogonally arranged opposed half-bridges in a strain gage bridge circuit can be equalized independently when two sets of equalizing resistors are used.

Abstract translation: 一种应变计桥接电路及灵敏度均衡方法，特别适用于测力传感器的精密测量。 应变计桥接电路中相对的半桥的灵敏度由连接在由两个半桥形成的桥对角线上的一对相等的固定电阻器相平衡，以及连接两个相等的固定电阻器的结的第三电阻器 到半桥的中心具有最高的灵敏度。 通过改变第三电阻器的值可以改变最敏感的半桥的有效分流，而两个等效分流电阻值的比值保持精确恒定。 当第三个电阻的值改变时，桥对角线上的总负载也保持恒定。 当使用两组均衡电阻器时，应变计电桥电路中的正交布置的相对半桥的两组可以独立地均衡。

公开(公告)号：US6073667A

公开(公告)日：2000-06-13

申请号：US172013

申请日：1998-10-14

Applicant: Andre Graffin

Inventor： Andre Graffin

IPC: G01G13/24 ,  B65B3/26 ,  B65B3/28 ,  B67C3/20 ,  B67C3/24 ,  G01G3/14 ,  G01G13/00 ,  G01G13/04 ,  G01G13/28 ,  G01G19/18 ,  B65B1/04

CPC classification number: B67C3/202 ,  B67C3/242 ,  G01G19/18 ,  G01G3/1402

Abstract: A method of weight-filling a receptacle having a cylindrical neck and a collar extending around the neck, comprising the steps of suspending the receptacle by the collar and filling and weighing the receptacle while it is suspended, and a weight-filler device for filling, by means of a filler spout, a receptacle having a cylindrical neck and a collar extending around the neck. The device has a weighing device including a holding element having a top surface forming a support for the collar of the receptacle so that the receptacle extends vertically beneath the filler spout and is cantilevered out from a support member mounted on a structure to extend laterally therefrom and associated with a weighing sensor comprising an elastically flexible bar having one end rigidly secured to the structure and an opposite end connected to the support member so that the support member extends substantially horizontally irrespective of a presence of an absence of a container on the support member.

Abstract translation: 一种用于对具有圆柱形颈部和颈部延伸的套环进行加重填充的方法，包括以下步骤：通过所述套环悬挂所述容器并在所述容器悬挂时对所述容器进行填充和称重;以及重量填充装置， 通过填料喷口，具有圆柱形颈部的容器和围绕颈部延伸的套环。 该装置具有称重装置，其包括保持元件，该保持元件具有顶部表面，该顶部表面形成用于插座的套环的支撑件，使得该容器在填充物喷口下垂直延伸，并且从安装在结构上的支撑构件悬臂伸出以从其横向延伸， 与称重传感器相关联，称重传感器包括弹性柔性杆，其一端刚性地固定到结构，并且相对端连接到支撑构件，使得支撑构件基本上水平地延伸，而不管在支撑构件上是否存在容器。

公开(公告)号：US5998742A

公开(公告)日：1999-12-07

申请号：US109501

申请日：1998-07-02

Applicant: Jyh-Dong Liu ,  Imre Andrew Pattantyus-Abraham ,  Lin Yang

Inventor： Jyh-Dong Liu ,  Imre Andrew Pattantyus-Abraham ,  Lin Yang

IPC: G01G7/02 ,  G01G3/14

CPC classification number: G01G7/02

Abstract: A force transducer and method of measuring an applied force such as a weight of material, comprising a balance beam, said balance beam being supported at a preset position on a base at a fulcrum between its two ends, a voice coil actuator comprising an electrically conductive coil and a magnet, the coil being mounted on the base and the magnet being mounted on one side of the fulcrum of the balance beam, a counterbalance mounted on the second side of the fulcrum of the balance beam whereby said balance beam is generally unresponsive to low frequency vibration at the base, a beam position sensor for detecting beam movement from its preset position by a force applied to the beam, a control system associated with the sensor and coil and responsive to the sensor for supplying an electric current through the coil in an amount sufficient to maintain the magnet and thereby the beam at the present position, and a current detector for measuring the amount of current so supplied and thereby the amount of the applied force. According to one embodiment, the conductive coil and magnet are located on the same side as the object to be weighed. A force concentration assembly may further concentrate the force to be weighed to a small-area on said balance beam. According to another embodiment, a double-beam force transducer is provided in which force of an object to be weighed is applied to a pair of balance beams.

Abstract translation: 力传感器和测量施加的力（例如材料的重量）的方法，包括平衡梁，所述平衡梁被支撑在位于其两端之间的支点处的基座上的预设位置;音圈致动器，包括导电 线圈和磁体，所述线圈安装在所述基座上，并且所述磁体安装在所述平衡梁的支点的一侧上，所述平衡体安装在所述平衡梁的支点的第二侧上，由此所述平衡梁通常不响应于 在基座处的低频振动，用于通过施加到梁的力来检测来自其预设位置的光束的光束位置传感器，与传感器和线圈相关联的控制系统，并且响应于传感器提供通过线圈的电流 足以将磁体保持在当前位置的光束，以及用于测量如此提供的电流量的电流检测器， 施加力量。 根据一个实施例，导电线圈和磁体位于与待测对象相同的一侧。 力集中组件可以进一步将待称重的力集中在所述平衡梁上的小面积上。 根据另一实施例，提供了一种双光束力传感器，其中被测量物体的力被施加到一对平衡光束。

公开(公告)号：USRE36411E

公开(公告)日：1999-11-30

申请号：US874826

申请日：1997-06-13

Applicant: Yoshihiro Nakamura ,  Kazufumi Naito

Inventor： Yoshihiro Nakamura ,  Kazufumi Naito

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

CPC classification number: G01G23/10 ,  G01G3/1414 ,  G01G3/147

Abstract: 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.

Abstract translation: 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：US5946795A

公开(公告)日：1999-09-07

申请号：US910537

申请日：1997-07-24

Applicant: David A. Altemir

Inventor： David A. Altemir

IPC: G01G3/14 ,  G01G3/16 ,  H01F7/06

CPC classification number: G01G3/16 ,  Y10T29/4902

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5929390A

公开(公告)日：1999-07-27

申请号：US527090

申请日：1995-09-12

Applicant: Kazufumi Naito ,  Takao Suzuki ,  Taro Hijikata

Inventor： Kazufumi Naito ,  Takao Suzuki ,  Taro Hijikata

IPC: G01G3/14 ,  G01L1/22 ,  G01G3/08

CPC classification number: G01L1/2281 ,  G01G3/1412 ,  G01L1/2243 ,  G01L1/2262 ,  G01L1/2275

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5900592A

公开(公告)日：1999-05-04

申请号：US919949

申请日：1997-08-29

Applicant: Carl W. Sohns ,  Robert N. Nodine ,  Steven Allen Wallace

Inventor： Carl W. Sohns ,  Robert N. Nodine ,  Steven Allen Wallace

IPC: G01G7/06 ,  G01G3/14 ,  G01G23/18 ,  H01G5/00

CPC classification number: G01G7/06

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5894409A

公开(公告)日：1999-04-13

申请号：US863206

申请日：1997-05-27

Applicant: Junko Tanaka

Inventor： Junko Tanaka

IPC: G01G3/15 ,  G01D11/24 ,  G01G19/08 ,  G01G19/12 ,  G01L1/12 ,  H01R4/00 ,  H01R13/66 ,  G01G3/14

CPC classification number: H01R12/62 ,  G01G19/08 ,  G01L1/127 ,  H01R13/6683

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5805467A

公开(公告)日：1998-09-08

申请号：US893406

申请日：1997-07-11

Applicant: James L. Richards

Inventor： James L. Richards

IPC: G01G3/14 ,  G01G23/01 ,  G01G23/37 ,  G01G9/00

CPC classification number: G01G23/01 ,  G01G23/3707 ,  G01G3/1416

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5780777A

公开(公告)日：1998-07-14

申请号：US813793

申请日：1997-03-06

Applicant: Klaus Peter Selig

Inventor： Klaus Peter Selig

IPC: G01G3/14 ,  G01G23/37 ,  G01G3/00

CPC classification number: G01G3/1414 ,  G01G23/3707

Abstract: 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.

Abstract translation: 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。