公开(公告)号：US4282748A

公开(公告)日：1981-08-11

申请号：US52613

申请日：1979-06-27

申请人： Harry E. Lockery ,  Eric Laimins

发明人： Harry E. Lockery ,  Eric Laimins

IPC分类号： G01L1/22 ,  G01L1/26 ,  G01L1/04

CPC分类号： G01L1/26 ,  G01L1/2225

摘要： The moment sensitivity of shear beam transducers is mechanically compensated to make such transducers relatively insensitive to load applications which are off-center relative to an optimal point of load application. Such shear beam transducers have a free end forming a load application section, a mounting section, and a fillet located substantially where the sections merge. The compensation is made by providing the fillet initially with a larger radius than the final compensating radius. The compensation is made by gradually changing the fillet radius until the transducer output shows substantially no difference between the measurement resulting from applying a defined load in the optimal loading point and the measurement resulting from applying the same load off-center the optimal loading point whereby the transducer becomes substantially insensitive to such off-center load applications.

摘要翻译： 剪切梁传感器的力矩灵敏度被机械补偿，使得这种传感器相对于相对于最佳载荷应用点偏心的载荷应用相对不敏感。 这种剪切梁传感器具有形成负载施加部分，安装部分和基本上位于部分合并的位置的圆角的自由端。 通过提供最小半径比最终补偿半径更大的圆角来进行补偿。 通过逐渐改变圆角半径进行补偿，直到传感器输出显示出在最佳加载点中施加定义的载荷所产生的测量与由偏心中心施加最佳加载点所产生的测量结果之间的差异。 传感器对这种偏心负载应用基本上不敏感。

公开(公告)号：US4411327A

公开(公告)日：1983-10-25

申请号：US263505

申请日：1981-05-14

申请人： Harry E. Lockery ,  Eric Laimins

发明人： Harry E. Lockery ,  Eric Laimins

IPC分类号： G01L1/22 ,  G01G3/14 ,  G01G21/23 ,  F16C17/00

CPC分类号： G01G21/23 ,  G01G3/1402 ,  Y10S177/09

摘要： In a platform scale in which the strain gage transducer beams are preferably formed as an integral part of a platform it is important that any distortions such as horizontal or angular force components that could falsify the reading of the weight, are prevented from affecting the transducers. For this purpose, the vertical load or weight representing force components are transmitted to each strain gage transducer beam through at least two cooperating curved, preferably spherical, surfaces. One curved surface has a larger curvature than the other so that a sufficient motion in any horizontal direction is permitted. The horizontal yielding prevents the transmission of a horizontal or angular force component to the sensing strain gages of the respective transducer beam but does not adversely affect the vertical force transmission to the transducer beams.

摘要翻译： 在其中应变计传感器梁优选地形成为平台的整体部分的平台尺度中，重要的是防止任何可能伪造重量读数的水平或角力分量的失真影响换能器。 为此，表示力分量的垂直载荷或重量通过至少两个协作的弯曲的，优选球形的表面传递到每个应变计传感器束。 一个弯曲表面具有比另一个更大的曲率，使得允许在任何水平方向上的足够的运动。 水平屈服防止水平或角力分量传递到各个换能器梁的感测应变计，但不会不利地影响到换能器束的垂直力传递。

公开(公告)号：US3949603A

公开(公告)日：1976-04-13

申请号：US484702

申请日：1974-07-01

申请人： Eric Laimins

发明人： Eric Laimins

IPC分类号： G01G3/14 ,  G01G19/04 ,  G01L1/22 ,  G01L1/26

CPC分类号： G01G3/1404 ,  G01L1/2206

摘要： A strain gage force measuring transducer is described in which distortion of measurements of a given strain on a given surface due to the interaction between the given strain and a second strain is eliminated by making a combined measurement of both strains on that same surface, equating the measured value of the second strain with the value of the distortion, and entering the so measured and equated value of the second strain into the combined measurement with a sign opposite to the sign of the distortion so as to cancel same. In a typical use, a shear beam shear-type transducer having a high degree of point-of-load insensitivity is provided thereby.

摘要翻译： 描述了一种应变计测力传感器，其中由于给定应变和第二应变之间的相互作用，在给定表面上的给定应变的测量变形通过在同一表面上进行两个应变的组合测量来消除，等于 第二应变的测量值与失真值，并将第二应变的如此测量和等价值输入到具有与失真符号相反的符号的组合测量中，以便消除它们。 在典型的用途中，由此提供了具有高度的负载点不敏感度的剪切束剪切型换能器。

公开(公告)号：US4482783A

公开(公告)日：1984-11-13

申请号：US664709

申请日：1976-03-08

申请人： Eric Laimins

发明人： Eric Laimins

IPC分类号： A61G7/05 ,  G01G19/14 ,  G01G19/44 ,  G01G3/14

CPC分类号： G01G19/445 ,  A61G7/0527 ,  G01G19/14 ,  A61G2200/32

摘要： The present patient weighing scale provides an automatic display of the patient's weight in digital form. For this purpose, a stretcher is secured to a cantilever boom through supporting means including two beam type transducers, for example double bending beam transducers, responsive to vertical forces and located in the respective ends of a tubular crossbar. The tubular crossbar is one element in a chain of supporting elements between trhe stretcher and the cantilever boom. The supporting elements include preferably pivots or bearings arranged so that the forces resulting from the weight of the patient extend in parallel to the direction of gravity whereby the transducer measuring axis always coincides with the direction of the gravity vector independently of the boom angle.

摘要翻译： 本患者称重秤以数字形式自动显示患者体重。 为此目的，担架通过支撑装置固定到悬臂上，所述支撑装置包括两个梁式换能器，例如响应垂直力并位于管状横杆的相应端部的双弯曲梁换能器。 管状横杆是牵引机和悬臂之间的支撑元件链中的一个元件。 支撑元件优选地包括枢轴或轴承，其被布置成使得由患者的重量产生的力平行于重力方向延伸，由此换能器测量轴总是与重力矢量的方向重合，而与臂角无关。

公开(公告)号：US4237727A

公开(公告)日：1980-12-09

申请号：US34371

申请日：1979-04-30

申请人： Harry E. Lockery ,  Eric Laimins

发明人： Harry E. Lockery ,  Eric Laimins

IPC分类号： G01L1/22 ,  G01L1/26

CPC分类号： G01L1/2225 ,  G01L1/2268 ,  G01L1/26

摘要： The moment sensitivity of shear beam transducers is mechanically compensated to make such transducers relatively insensitive to load applications which are off-center relative to an optimal point of load application. The compensation is made by gradually increasing the depth of a load application hole in the transducer. The load application hole extends in the direction of a load application axis and its depth is increased until said moment sensitivity becomes substantially zero. In other words, the load sensitivity becomes substantially independent of the location of the point of load application. A further linearization of the moment sensitivity is accomplished by placing inserts into the load application hole.

摘要翻译： 剪切梁传感器的力矩灵敏度被机械补偿，使得这种传感器相对于相对于最佳载荷应用点偏心的载荷应用相对不敏感。 通过逐渐增加换能器中的载荷施加孔的深度来进行补偿。 负载施加孔沿负载施加轴线的方向延伸，并且其深度增加，直到所述力矩灵敏度变为基本为零。 换句话说，负载灵敏度基本上与负载点的位置无关。 通过将插入物放置到负载施加孔中来实现力矩灵敏度的进一步线性化。