公开(公告)号：US4489799A

公开(公告)日：1984-12-25

申请号：US496903

申请日：1983-05-23

Applicant: Narandranath Menon

Inventor： Narandranath Menon

IPC: G01G5/04

CPC classification number: G01G5/04

Abstract: A weighing scale (10) includes a base (12) with an array of cylindrical bores (16) disposed therein. A network of interconnecting channels (18) is formed on the lower surface of the base (12) with a cover (20) disposed thereover. A layer of elastically deformable material (22) is disposed on the other side of the base (12) to cover the bores (16). The base (20) and the elastically deformable layer (22) define deformable chambers (24) within the bores (16). A load bearing layer (34) is disposed over the elastically deformable layer (22) and spaced therefrom by spherical members (32) disposed proximate the longitudinal axis of the bores (16). A locating layer (28) positions the spherical members (32) in their proper place. The deformable chambers (24) and the interconnecting channels (18) comprise a common reservoir that is connected to an expanding bellows type gauge (36). The gauge (36) allows for volumetric displacement of fluid within the deformable chambers (24). Weight applied to the load bearing layer (34) results in deformation of the elastically deformable layer (22) and a volumetric displacement of fluid from the deformable chambers (24) to the expanding bellows type gauge (36). Measurement of this volumetric displacement is converted into a weight measurement that can be directly read from the face of the gauge (36).

Abstract translation: 称重秤（10）包括具有设置在其中的圆柱形孔（16）阵列的基座（12）。 在基座（12）的下表面上形成有互连通道（18）的网络，其上设置有盖（20）。 一层可弹性变形的材料（22）设置在基座（12）的另一侧以覆盖孔（16）。 底座（20）和可弹性变形层（22）限定了孔（16）内的可变形腔（24）。 承载层（34）设置在可弹性变形层（22）的上方，并与靠近孔（16）的纵向轴线设置的球形构件（32）隔开。 定位层（28）将球形构件（32）定位在适当的位置。 可变形室（24）和互连通道（18）包括连接到膨胀波纹管式量规（36）的公共储存器。 量规（36）允许流体在可变形腔室（24）内的体积位移。 施加到承载层（34）的重量导致可弹性变形层（22）的变形和流体从可变形室（24）到膨胀式波纹管式量规（36）的体积位移。 将该体积位移的测量转换成能够从量规（36）的表面直接读取的重量测量值。

公开(公告)号：US4583606A

公开(公告)日：1986-04-22

申请号：US577087

申请日：1984-02-06

Applicant: Narandranath Menon

Inventor： Narandranath Menon

IPC: G01G5/04 ,  G01L1/02

CPC classification number: G01L1/02 ,  G01G5/04

Abstract: A load cell includes a base (40) with a cavity (42) formed therein. A diaphragm (46) is disposed over the cavity (42) to form a chamber (48) that is filled with hydraulic fluid. A piston formed of two halves (60) and (62) is disposed adjacent the surface of the diaphragm (46). A high tensile strength resilient membrane (58) is disposed between the two halves (60) and (62) of the piston and secured thereto with bolts (64) and (66). A securing ring (68) secures the diaphragm (46) around the periphery thereof to the base (40). A securing ring (72) secures the peripheral edge of the membrane (58) to the securing ring (68). The membrane (58) provides tension forces about the periphery of the piston to impede lateral movement thereof to maintain the piston in the center of the cavity (42).

Abstract translation: 称重传感器包括其中形成有空腔（42）的基座（40）。 隔膜（46）设置在空腔（42）上方以形成充满液压流体的室（48）。 由两半（60）和（62）形成的活塞邻近隔膜（46）的表面设置。 高拉伸强度的弹性膜（58）设置在活塞的两个半部（60）和（62）之间，并用螺栓（64）和（66）固定在活塞上。 固定环（68）将隔膜（46）围绕其周边固定到基座（40）上。 固定环（72）将膜（58）的周边边缘固定到固定环（68）。 膜（58）围绕活塞的周边提供张力，以阻止其横向运动，以将活塞保持在空腔（42）的中心。