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    • 3. 发明授权
    • Force sensor
    • 力传感器
    • US06339962B1
    • 2002-01-22
    • US09529127
    • 2000-05-11
    • Felix ScheuterChristian Maurer
    • Felix ScheuterChristian Maurer
    • G01N300
    • G01G3/1402G01G19/024G01L1/2218G08G1/02
    • A force sensor has an elastically deformable carrier (10; 110) which absorbs the force to be measured and on which there are a first and a second strain measurement element (21, 31; 121, 131) arranged such that the elastic deformation of the carrier (10; 110) which is caused by the force leads to different elongations in the two strain measurement elements (21, 31; 121, 131). This difference in elongations is used as a measure for the force to be measured. The force sensor as claimed in the invention is largely immune to disruptive ambient influences such as temperature changes, electromagnetic interference, tensile, compressive and/or shearing forces in the lengthwise direction of the tube, shearing forces transversely to the lengthwise direction of the tube, etc. Wheel load scales with several force sensors as claimed in the invention have such a short response time that it enables measurement of the wheel loads of moving vehicles.
    • 力传感器具有可弹性变形的载体(10; 110),其吸收待测量的力,并且其上布置有第一和第二应变测量元件(21,31; 121,131),使得弹性变形 由力引起的载体(10; 110)导致两个应变测量元件(21,31; 121,131)中的不同伸长率。 伸长率的差异用作测量力的量度。 本发明所述的力传感器在很大程度上不受诸如温度变化,电磁干扰,拉伸,压缩和/或剪切力在管的长度方向上的破坏性环境影响,横向于管的长度方向的剪切力, 具有本发明所要求的几个力传感器的轮负载秤具有这样一个很短的响应时间,使得它能够测量移动车辆的车轮负载。