发明名称 ELECTRONIC FORCE SENSING LOAD CELL
摘要 A load cell device includes a load cell structure formed of a suitable metal and including vertically spaced apart, generally parallel horizontal elements (14, 15) integrally formed with longitudinally spaced apart, generally parallel vertical elements (12, 13). Flexures (16, 17) interconnect each horizontal element with the vertical elements. A bending beam (18) extends between and is interconnected with the horizontal or vertical elements. When a load is applied vertically and perpendicularly to one of the horizontal elements, the load cell structure will elastically deform as a parallelogram to thereby transfer shear force to the bending beam to cause shearinduced bending of the latter. Strain gages or frequency resonator crystal elements sense the shearinduced bending and are embodied in electronic circuitry which produces an output signal caused by deformation of the bending beam. The electronic circuitry is operable to convert the output signal to a perceptive force readout.
申请公布号 WO9320418(A1) 申请公布日期 1993.10.14
申请号 WO1992US08509 申请日期 1992.10.02
申请人 WEIGH-TRONIX, INC. 发明人 JOHNSON, THOMAS, H.
分类号 G01G3/14;G01G21/24;G01L1/16;G01L1/22;G01P15/097;(IPC1-7):G01L1/22;G01G3/13 主分类号 G01G3/14
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