公开(公告)号：US5442146A

公开(公告)日：1995-08-15

申请号：US64551

申请日：1993-05-19

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

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

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

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

摘要： 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.

摘要翻译： 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。