公开(公告)号：WO2015012981A1

公开(公告)日：2015-01-29

申请号：PCT/US2014/043452

申请日：2014-06-20

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： HEAD, James A. ,  FRUECHTE, Kevin M.

IPC: G01G3/14 ,  G01G1/20

CPC classification number: G01G3/1402 ,  G01G3/14 ,  G01G21/18 ,  G01L1/205

Abstract: A load cell may include a bar having a supported end, an unsupported end and a sensor holding portion disposed between the supported end and the unsupported end. The load cell may further include a plurality of electronic sensors including a first strain gauge pair and a second strain gauge pair disposed along the sensor holding portion. The load cell may further include an interface member directly connecting the electronic sensors for weight calculation responsive to application of a load to the unsupported end. In some cases, the interface member may include a flex circuit.

Abstract translation: 测力传感器可以包括具有支撑端的杆，未支撑端和设置在被支撑端和未支撑端之间的传感器保持部。 测力传感器还可以包括多个电子传感器，包括沿传感器保持部分设置的第一应变仪对和第二应变仪对。 测力传感器还可以包括直接连接电子传感器的接口构件，用于响应负载的施加到无支撑的端部的重量计算。 在一些情况下，接口部件可以包括柔性电路。

公开(公告)号：WO2016034411A1

公开(公告)日：2016-03-10

申请号：PCT/EP2015/068993

申请日：2015-08-19

Applicant: METTLER-TOLEDO GMBH

Inventor： REBER, Daniel

IPC: G01G7/04 ,  G01G21/20 ,  G01G23/01 ,  G01G21/23 ,  G01L1/08

CPC classification number: G01G21/18 ,  G01G7/02 ,  G01G7/04 ,  G01G21/20 ,  G01G21/23 ,  G01G23/01

Abstract: Method of operating a balance (1) with a weighing pan (3), at least six position sensors, and a weighing mechanism (4), wherein the weighing mechanism comprises at least six electromagnetic mechanisms (5), each of which includes at least one permanent magnet (6) and at least one force coil (7), and wherein during the weighing process the electromagnetic mechanisms (5) generate compensation forces (F c1 –F c6 ) acting on the weighing pan (3) in the six degrees of freedom by sending currents through the force coils (7) depending on their respective positions and orientations relative to the weighing pan (3), with the following steps: − measuring the position of the weighing pan (3) in all three dimensions by means of the at least six position sensors (8); − simultaneously regulating the respective current flowing in each force coil (7), so that the compensation forces (F c1 –F c6 ), through the sum of their respective moments, will hold the weighing pan in a predetermined free-floating and constant position relative to translatory and rotary displacements in the six degrees of freedom; and − calculating the weighing result from the amounts of current flowing in the respective force coils (7).

Abstract translation: 使用称重盘（3），至少六个位置传感器和称重机构（4）来操作天平（1）的方法，其中所述称重机构包括至少六个电磁机构（5），每个至少包括至少 一个永磁体（6）和至少一个力线圈（7），并且其中在称重过程期间，电磁机构（5）以六自由度产生作用在称重盘（3）上的补偿力（Fc1-Fc6） 通过根据它们相对于称重盘（3）的相应位置和方向通过力线圈（7）发送电流，具有以下步骤： - 通过以下步骤测量所有三维的称重盘（3）的位置： 至少六个位置传感器（8）; - 同时调节在每个力线圈（7）中流动的相应电流，使得补偿力（Fc1-Fc6）通过它们各自的力矩之和将使称重盘保持在预定的自由浮动和恒定位置 六个自由度的平移和旋转位移; 以及 - 根据在各个力线圈（7）中流动的电流量来计算称重结果。

公开(公告)号：WO2014149637A1

公开(公告)日：2014-09-25

申请号：PCT/US2014/020004

申请日：2014-03-03

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： JOHNSON, Thomas H.

IPC: G01G23/00

CPC classification number: G01G3/14 ,  G01G21/18 ,  G01G21/23 ,  G01G23/005

Abstract: A load cell support structure for a scale comprising a base support member for mounting at least one load cell; a load bearing member movable with respect to said base support member and having an upper surface for receiving a load; a load cell engaging member adapted to operatively engage at least one load cell in a direction of a load applied to said upper surface of said load bearing member; a load transfer portion integrally formed with said load bearing member and operatively coupled to said load cell engaging member so as to transfer a load from said upper surface to at least one load cell via said load cell engaging member; at least one biasing member adapted to urge said load transfer member towards said load cell engaging member with a predetermined biasing force and in a direction opposing a load applied to said upper surface of said load bearing member; at least one pivot member operatively engaging said load transfer member and said load cell engaging member, so as to allow pivotal movement of said load transfer member with respect to said load cell engaging member about said pivot member and in at least one plane parallel to the direction of a load applied to said upper surface.

Abstract translation: 一种用于秤的测力传感器支撑结构，包括用于安装至少一个测力传感器的基座支撑构件; 承载构件，其相对于所述基座支撑构件可移动，并具有用于接收负载的上表面; 负载传感器接合构件，其适于在施加到所述承载构件的所述上表面的负载的方向上可操作地接合至少一个测力传感器; 负载传递部分，与所述承载构件一体地形成并且可操作地联接到所述测力传感器接合构件，以便经由所述称重传感器接合构件将负载从所述上表面传递到至少一个称重传感器; 至少一个偏置构件，其适于以预定的偏压力和与施加到所述承载构件的所述上表面的载荷相反的方向推动所述负载传递构件朝向所述测力传感器接合构件; 至少一个枢转构件，其可操作地接合所述负载传递构件和所述负载传感器接合构件，以便允许所述负载传递构件相对于所述负载传感构件绕所述枢转构件枢转运动，并且在平行于所述负载传感构件的至少一个平面中 施加到所述上表面的负载的方向。

公开(公告)号：WO2008129107A1

公开(公告)日：2008-10-30

申请号：PCT/ES2008/000270

申请日：2008-04-18

Applicant: UNIVERSITAT POLITÈCNICA DE CATALUNYA ,  CASTILLA LÓPEZ, Roberto ,  GÁMEZ MONTERO, Pedro Javier ,  VOICIECHOWSKI, Jan

Inventor： CASTILLA LÓPEZ, Roberto ,  GÁMEZ MONTERO, Pedro Javier ,  VOICIECHOWSKI, Jan

IPC: G01G21/23 ,  G01M9/06 ,  G01G3/12

CPC classification number: G01G23/005 ,  G01G21/18 ,  G01M9/06

Abstract: La presente invención se refiere a una varilla flexible para la transmisión de la fuerza axial, especialmente de la compresión, eliminando las componentes normales, entre la plataforma de una balanza aerodinámica y las células de carga. Estas varillas representan una notable mejora respecto a otros diseños usados hasta ahora, dado que, por un lado, es fabricada en una única pieza, manteniendo de esta forma el eje sin perturbar y facilitando su manipulación, y, por otro lado, por su construcción, los elementos flexibles están protegidos frente a sobrecargas.

Abstract translation: 本发明涉及一种用于传递轴向力的柔性杆，特别是压缩力，消除了空气动力学秤的平台与称重传感器之间的正常部件。 本发明的棒对于其他迄今使用的设计是特别有利的，因为：（i）它包括单个部件，从而保持轴不受干扰并且便于其处理; 和（ii）其构造使得其柔性元件被保护免受过载。

公开(公告)号：WO1991002957A1

公开(公告)日：1991-03-07

申请号：PCT/EP1990001096

申请日：1990-07-06

Applicant: GTM GASSMANN THEISS MESSTECHNIK GMBH ,  GASSMANN, Helmut ,  THEISS, Dieter

Inventor： GTM GASSMANN THEISS MESSTECHNIK GMBH

IPC: G01L01/22

CPC classification number: G01G21/23 ,  G01G3/1402 ,  G01G21/18

Abstract: A dynamometer, for example a load-sensing machine, has a two-armed lever (1) with a bearing joint (2) and two load application joints (3, 4) designed as spring joints. Each spring joint (2, 3, 4) has a flexible articulated spring (5). Wire strain gauges (2a-d, 3a-d, 4a-d) are mounted on both sides of the articulated springs (5). The wire strain gauges of each articulated spring (5) are interconnected in order to form a bridge circuit (6, 7 or 8). The bending stress of the articulated springs (5) detected by the wire strain gauges is used by an associated evaluation circuit (12) in order to determine the displacement of the fulcrum and to correct the force measurement.