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1. 发明专利

CA2199574C LOAD MEASURING DEVICE WITH A LOAD CELL AND METHOD FOR INTRODUCING A LOAD INTO THE LOAD CELL 未知
公开(公告)号：CA2199574C
公开(公告)日：2006-08-01
申请号：CA2199574
申请日：1997-03-10
申请人： HOPKINS RANDALL K , HANSSON THOMAS W
发明人： HOPKINS RANDALL K , HANSSON THOMAS W
IPC分类号： G01L1/02 , G01G3/14 , G01G5/00 , G01L1/26
摘要： A load to be measured is transmitted to a load cell, such as a compression load cell, through a double piston, single cylinder load transmitter that has a pressure chamber between two pistons in the single cylinder. One piston bears against the load. The other piston bears against the load cell to form a floating link between the load and the load cell when a sufficient pressure is introduced into said pressure chamber to prevent unwanted, off-center load application force components from adversely affecting any measured results. Preferably, at least one axially outwardly facing end surface of the piston bearing against the load cell has a curved end surface area, A rocker pin with a pressure controllable variable length may be formed by making both axially outwardly facing end surfaces curved. Several load transmitters may be arranged in parallel to transmit larger loads into a load cell.

2. 发明申请

WO2004031710A1 HERMETICALLY SEALED LOAD CELL 审中-公开
标题翻译：密封式密封电池
公开(公告)号：WO2004031710A1
公开(公告)日：2004-04-15
申请号：PCT/US2003/030759
申请日：2003-09-29
申请人： HOTTINGER BALDWIN MEASUREMENTS, INC. , HOPKINS, Randall, K.
发明人： HOPKINS, Randall, K.
IPC分类号： G01L1/04
CPC分类号： G01L1/2268 , G01L1/2243
摘要： A load cell includes two beam elements and a strain gage arranged on a narrow sensing section of a beam element, on a flat planar outer surface facing outwardly away from the median plane extending longitudinally through the load cell. A cup-shaped seal cap encloses the strain gage, and is laser welded onto the outer surface of the beam element to form a hermetic seal. A writing tunnel in the load cell body leads from inside the seal cap into an electronics cavity for wires to pass from the strain gage to electronic circuitry in the cavity. The load cell body and seal caps, made of stainless steel or titanium, are entirely hermetically sealed and suitable for use in harsh environments. The seal caps have a minimal influence on the strain development in the beam element sensing sections. The load cell has a low-end capacity of 5 kg or less.
摘要翻译：负载传感器包括布置在梁元件的窄传感部分上的两个光束元件和应变计，该平面外表面面向外远离垂直延伸穿过测力传感器的中间平面。杯形密封帽包围应变计，并且被激光焊接到梁元件的外表面上以形成气密密封。称重传感器体中的书写通道从密封盖内部引出到电子空腔中，用于将电线从应变计传送到空腔中的电子电路。称重传感器体和密封盖由不锈钢或钛制成，完全密封，适用于恶劣环境。密封帽对梁元件感应部分的应变发展影响最小。称重传感器的低端容量为5公斤以下。

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