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    • 1. 发明授权
    • Torque sensor with a bridge-circuit of thick film resistors
    • 具有厚膜电阻桥式电路的转矩传感器
    • US06675663B1
    • 2004-01-13
    • US09806013
    • 2001-06-28
    • Jürgen IrionArthur SchäfertBernd ThyzelKlaus Weber
    • Jürgen IrionArthur SchäfertBernd ThyzelKlaus Weber
    • G01L104
    • G01L3/108
    • A mechanical/electrical transducer which has a bridge circuit formed by electrically connecting strain-sensitive thick-film resistors by conductor tracks, the thick-film resistors being arranged directly on a metallic component to be subjected mechanically to torsional loading and lying outside an axis of the component to be loaded which is neutral with respect to bending moments, it being possible to tap an electrical signal corresponding to the strain of the thick-film resistors when the component is subjected to torsion. In a mechanical/electrical transducer in which the electrical signal is tapped with the aid of a bridge circuit and in which the production of a bridge signal due to bending moments or tensile and compressive forces is reliably prevented, in each case at least one thick-film resistor (2; 4) in one arm of the bridge circuit is at the same distance from and at an angle of the same magnitude to the neutral axis (z axis) of the component (1) to be loaded as an opposite thick-film resistor (3; 5) in the second arm of the bridge circuit.
    • 一种机械/电传感器,其具有通过导体轨迹电连接应变敏感厚膜电阻器而形成的桥接电路,所述厚膜电阻器直接布置在金属部件上,以经受机械扭转加载并位于 要加载的组件相对于弯矩是中性的,当组件受到扭转时,可以抽出对应于厚膜电阻器的应变的电信号。在机电/电传感器中,其中电 借助于桥接电路对信号进行抽头,并且可靠地防止由于弯矩或拉伸和压缩力而产生桥接信号,在每种情况下,在一个臂中至少有一个厚膜电阻器(2; 4) 桥接电路的距离与相同大小的相同距离与要组装的部件(1)的中性轴(z轴)成相同的距离,作为相反的t ick膜电阻(3; 5)桥接电路的第二臂。