公开(公告)号：US5442146A

公开(公告)日：1995-08-15

申请号：US64551

申请日：1993-05-19

Applicant: David Bell ,  Robert G. Allard ,  Ronald A. Rodgers ,  Victor E. Hipkiss ,  Thomas H. Johnson

Inventor： David Bell ,  Robert G. Allard ,  Ronald A. Rodgers ,  Victor E. Hipkiss ,  Thomas H. Johnson

IPC: G01G3/14 ,  G01G19/42 ,  G01G21/24 ,  G01L1/14 ,  G01L1/16 ,  G01L1/22 ,  G01L9/00 ,  G01P15/097 ,  G01P15/10

CPC classification number: G01G3/1412 ,  G01G19/42 ,  G01G21/24 ,  G01L1/14 ,  G01L1/162 ,  G01L1/165 ,  G01L1/2206 ,  G01L1/2243 ,  G01L9/0005 ,  G01L9/0022 ,  G01P15/097

Abstract: The invention is directed to a counting scale which implements a load cell assembly for the measurement of weight used in counting calculations. A load cell in such an assembly has a beam structure with beams positioned parallel to each other in at least one plane. Generally, these parallel beams are attached to a stationary base and have sensing means attached between the two beams and the base. These sensing means are preferably resonators which have resonant frequencies that vary in response to an applied force on the load cell. A controller is included in the assembly to drive these resonators, convert their frequency outputs to digital values, and correct for various environmental effects, to obtain an accurate weight measurement for use in the counting scale.

Abstract translation: 本发明涉及一种计数秤，其实现用于计量计算中使用的重量测量的称重传感器组件。 这种组件中的称重传感器具有梁结构，其梁在至少一个平面中彼此平行。 通常，这些平行光束被附接到固定的基座上并且具有连接在两个光束和基底之间的感测装置。 这些感测装置优选地是谐振器，其谐振频率响应于测力传感器上施加的力而变化。 组件中包括一个控制器来驱动这些谐振器，将其频率输出转换为数字值，并对各种环境影响进行校正，以获得用于计数刻度的精确重量测量。

公开(公告)号：US5186061A

公开(公告)日：1993-02-16

申请号：US644952

申请日：1991-01-23

Applicant: William W. Montalvo, III ,  Philip R. Metcalf, Jr.

Inventor： William W. Montalvo, III ,  Philip R. Metcalf, Jr.

IPC: G01L1/22 ,  G01L5/10

CPC classification number: G01L5/106 ,  G01L1/2243 ,  G01L5/10 ,  G01L5/108

Abstract: A transducer employs a beam with spaced, parallel end portions interconnected by a middle portion disposed at an angle of about 45.degree. with respect to the end portions. Strain gages are mounted on the middle portion of the beam. The transducer can be employed for measuring and monitoring forces acting on a shaft.

Abstract translation: 换能器采用具有间隔开的平行端部的梁，该中间部分相对于端部以大约45°的角度设置。 应变片安装在梁的中间部分。 换能器可用于测量和监测作用在轴上的力。

公开(公告)号：US4657097A

公开(公告)日：1987-04-14

申请号：US786719

申请日：1985-10-15

Applicant: Neil C. Griffen

Inventor： Neil C. Griffen

IPC: G01L1/22 ,  G01G3/14 ,  G01G3/08

CPC classification number: G01L1/2262 ,  G01L1/2243 ,  G01L1/2268

Abstract: Load cells incorporating one or more gaged beams as the load sensing elements are compensated for off-center loading in the longitudinal and/or lateral directions. The load cell may also include one or more flexure arms extending parallel to the beam. The relative position of the gages and the neutral axis of the beam is made such that the gages produce a correctible response to off-set loading by positioning the gages and/or physically altering the beam. Preferably, conventional or special strain gages are mounted upon the beam(s) to produce a correctible response by the gages by rotating and/or displacing them with respect to the longitudinal axis of the beam. Resistors are then connected to certain of the strain gages to compensate for off-center loading. The strain gages are advantageously placed all on one side of a beam but may be placed on opposite sides thereof.

Abstract translation: 结合有一个或多个平衡波束的称重传感器作为负载感测元件被补偿在纵向和/或横向上的偏心载荷。 称重传感器还可以包括平行于梁延伸的一个或多个弯曲臂。 进行光束的量规和中性轴的相对位置使得量规通过定位量规和/或物理地改变光束而产生对偏移负载的可校正响应。 优选地，传统的或特殊的应变计安装在梁上，以通过相对于梁的纵向轴线旋转和/或移动量规来通过量规产生可校正的响应。 然后将电阻器连接到某些应变计以补偿偏心负载。 应变计有利地放置在梁的一侧上，但可以放置在其相对侧上。

公开(公告)号：US4598781A

公开(公告)日：1986-07-08

申请号：US614074

申请日：1984-05-25

Applicant: Herbert Tramposch

Inventor： Herbert Tramposch

IPC: G01G3/14 ,  G01L1/22 ,  G01G3/08

CPC classification number: G01G3/1412 ,  G01L1/2243

Abstract: A load cell having a flexure connector that provides connection between the load beam of the load cell and the sensing beam. The structure has a low profile and provides an adjusting feature that compensates for the variations in resistance of the load cell strain gages.

Abstract translation: 具有弯曲连接器的测力传感器，其提供负载传感器的负载光束与感测光束之间的连接。 该结构具有低轮廓并且提供补偿称重传感器应变计的电阻变化的调整特征。

公开(公告)号：US4454770A

公开(公告)日：1984-06-19

申请号：US334252

申请日：1981-12-24

Applicant: Walter P. Kistler

Inventor： Walter P. Kistler

IPC: G01G3/14 ,  G01G21/24 ,  G01L1/22

CPC classification number: G01L1/2243 ,  G01G21/24 ,  G01G3/1412

Abstract: A load cell having a parallelogram configuration formed by a pair of spaced-apart, generally parallel force-receiving members interconnected by a cantilever beam and a parallel spacer beam. The cantilever beam projects perpendicularly from one of the force-receiving members, and its end is secured to the other beam by a flexure hinge. The ends of the spacer beam are secured to the force-receiving members by respective flexure hinges. In order to maintain the parallelogram configuration of the load cell, the length of the spacer beam is equal to the length of the cantilever beam from the beam's virtual pivot point to its end. Rotational moments imparted to the force-receiving members apply forces to the beams along their longitudinal axes without deflecting the cantilever beam, thus making the load cell insensitive to such moments. A reduced thickness portion instrumented with semiconductor strain gauges is formed in the cantilever beam near its point of attachment with the force-receiving member. The reduced thickness portion accurately positions the virtual pivot point of the beam and it concentrates the stress at the strain gauges. The load cell may be used in a scale by securing one of the load-receiving members on a base and mounting a load-receiving tray on the other load-receiving member.

Abstract translation: 具有由平行四边形构型形成的负载传感器，该平衡四边形构造由通过悬臂梁和平行间隔梁互连的一对间隔开的大致平行的受力构件形成。 悬臂梁从其中一个力接收构件垂直地突出，并且其端部通过挠性铰链固定到另一个梁。 间隔梁的端部通过相应的挠性铰链固定到受力构件上。 为了保持测力传感器的平行四边形结构，间隔梁的长度等于从梁的虚拟枢轴点到其端部的悬臂梁的长度。 赋予力接收部件的旋转力矩沿其纵向轴向梁施加力而不偏转悬臂梁，从而使称重传感器对这种力矩不敏感。 装配有半导体应变计的厚度​​减小的部分在靠近与受力部件的连接点处的悬臂梁中形成。 减小的厚度部分准确地定位梁的虚拟枢轴点，并将应力集中在应变计上。 可以通过将负载接收构件中的一个固定在基座上并将负载接收托盘安装在另一个承载构件上来将测力传感器以比例尺使用。

公开(公告)号：US4450922A

公开(公告)日：1984-05-29

申请号：US356535

申请日：1982-03-09

Applicant: Claude Alexandre

Inventor： Claude Alexandre

IPC: G01G3/14 ,  G01L1/22 ,  G01G3/08

CPC classification number: G01G3/1412 ,  G01L1/2243

Abstract: A force sensing apparatus comprising a parallelepipedic block (1) having an application area (2) and a reception area (8) for the force to be measured thereby, upper transverse openings (10,11) connected by a slot (14) and lower transverse openings (12,13) connected by a slot (15). The transverse openings (10,11,12,13) determine zones of lesser strength (20,21) and vertical slots (25,26) determine a zone of lesser strength (35) therebetween, the minimum thickness of which is located on the axis X--X of the zones of lesser strength (20,21) determined by the openings (10,11,12,13).

Abstract translation: 一种力感测装置，包括具有应用区域（2）的平行六面体块（1）和用于由此测量的力的接收区域（8），上部横向开口（10,11）通过槽（14）和下部 通过槽（15）连接的横向开口（12,13）。 横向开口（10,11,12,13）确定较小强度（20,21）的区域，并且垂直槽（25,26）确定其间的较小强度（35）的区域，其最小厚度位于 由开口（10,11,12,13）确定的较小强度（20,21）的区域的轴线XX。

公开(公告)号：US4432247A

公开(公告)日：1984-02-21

申请号：US323726

申请日：1981-11-23

Applicant: Shozo Takeno ,  Koichiro Sakamoto

Inventor： Shozo Takeno ,  Koichiro Sakamoto

IPC: G01L1/22 ,  G01B7/20

CPC classification number: G01L1/2243 ,  G01L1/2206 ,  G01L1/2281 ,  G01L1/2287

Abstract: A load cell includes a bridge circuit having first to fourth strain gauge resistors and first and second temperature compensating resistors connected to the respective first and second strain gauge resistors. The first to fourth strain gauge resistors comprise a Nichrome layer formed on an insulating film, the first and second temperature compensating resistors each comprise a two-layered structure of the Nichrome layer and a titanium layer formed thereon, and connecting means for connecting the first to fourth strain gauge resistors and first and second temperature compensating resistors comprise a three-layered structure of the Nichrome layer and titanium layer and also a gold layer formed on the titanium layer.

Abstract translation: 负载传感器包括具有第一至第四应变计电阻器和连接到相应的第一和第二应变计电阻器的第一和第二温度补偿电阻器的桥接电路。 第一至第四应变计电阻器包括形成在绝缘膜上的镍铬合金层，第一和第二温度补偿电阻器各自包括镍铬层的二层结构和形成在其上的钛层，以及连接装置，用于将第一至第 第四应变计电阻器和第一和第二温度补偿电阻器包括镍铬层和钛层的三层结构以及在钛层上形成的金层。

公开(公告)号：US4423640A

公开(公告)日：1984-01-03

申请号：US316330

申请日：1981-10-29

Applicant: Hans Jetter

Inventor： Hans Jetter

IPC: G01G3/14 ,  G01L1/22

CPC classification number: G01L1/2243 ,  G01G3/1412 ,  G01L1/2206

Abstract: An electromechanical bending force receiver for weighing cells and the like in which at least one strain gauge is disposed in a notch-like recess in a bar-shaped bending body with a step surrounding the recess to form a plane surface located in the zone of the body which is neutral to bending and with a covering foil located in said zone hermetically bonded to said surface.

Abstract translation: 一种用于称重电池等的机电弯曲力接收器，其中至少一个应变仪设置在条形弯曲体的凹口状凹部中，其中围绕凹部的台阶形成位于 本体对于弯曲是中性的，并且具有位于与所述表面密封结合的所述区域中的覆盖箔。

公开(公告)号：US4329878A

公开(公告)日：1982-05-18

申请号：US141624

申请日：1980-04-18

Applicant: Ferdinand Utner ,  Harald Vetter

Inventor： Ferdinand Utner ,  Harald Vetter

IPC: G01B7/16 ,  G01L1/22 ,  G01B7/20

CPC classification number: G01L1/2262 ,  G01L1/2243 ,  G01L1/2287

Abstract: A bridge circuit consisting of two or more resistance strain gauges is formed on a synthetic layer on which a resistance layer and a metal layer provided for the terminal elements are applied. The corresponding patterns are etched into the metal and into the resistance layer. Balance surfaces consisting of materials with a temperature coefficient different from that of the resistance layer are connected in series to the resistance strain gauges. By changing the resistance of the balance surfaces, the circuit is balanced in terms of symmetry, in terms of the temperature coefficient of the resistance layer, and in terms of the temperature coefficient of the modulus of elasticity of the test object.

Abstract translation: 由两个或更多个电阻应变计构成的桥接电路形成在其上施加电阻层和设置用于端子元件的金属层的合成层上。 相应的图案被蚀刻到金属中并进入电阻层。 由温度系数不同于电阻层的材料组成的平衡表面与电阻应变计串联。 通过改变平衡表面的电阻，电路就电阻层的温度系数和测试对象的弹性模量的温度系数方面的对称平衡。

公开(公告)号：US4326424A

公开(公告)日：1982-04-27

申请号：US118807

申请日：1980-02-25

Applicant: Robert G. Koenig

Inventor： Robert G. Koenig

IPC: G01L1/22 ,  G01L5/00 ,  G01L5/10

CPC classification number: G01L5/106 ,  G01L1/2243 ,  G01L5/0019 ,  G01L5/10 ,  G01L5/107

Abstract: A web tension transducer device which is easily in-installed, has a high natural frequency, excellent linearity, and extremely low hysteresis. A twin beam type transducer having strain gages at the flex points of the beams is coupled to the shaft supporting the moving web through a self-aligning anti-friction bearing, the strain gages being so located and electrically connected that effects of friction in the bearing due to bending of the shaft are automatically cancelled out in the circuitry in which the strain gages are connected. The self-aligning bearing coupling is arranged to permit relative axial displacement between the shaft and the twin beam transducer for accommodating comparatively large amounts of shaft expansion. The bearing also may have a bearing surface liner comprised of a low coefficient of friction thermoplastic resin material such as teflon fiber or teflon fiber-filled acetal resin fabric.

Abstract translation: 容易安装的卷筒纸张力传感器装置具有高的固有频率，良好的线性度和极低的滞后。 在梁的弯曲点处具有应变计的双梁式换能器通过自对准的抗摩擦轴承联接到支撑移动腹板的轴上，应变计被定位并电连接到轴承中的摩擦效应 由于轴的弯曲在应变计连接的电路中自动抵消。 自对准轴承联轴器布置成允许轴和双梁换能器之间的相对轴向位移，以适应较大量的轴膨胀。 该轴承还可以具有由低摩擦系数的热塑性树脂材料（例如聚四氟乙烯纤维或聚四氟乙烯纤维填充的缩醛树脂织物）组成的支承表面衬垫。