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    • 10. 发明授权
    • Torque measuring apparatus
    • 扭矩测量仪
    • US4697459A
    • 1987-10-06
    • US903139
    • 1986-09-03
    • Yutaka NonomuraJun SugiyamaHirofumi KomatsubaraMasaharu Takeuchi
    • Yutaka NonomuraJun SugiyamaHirofumi KomatsubaraMasaharu Takeuchi
    • G01L3/10G01L25/00
    • G01L3/102G01L3/105
    • A torque measuring apparatus for detecting torque in a noncontacting state on the basis of the magnetostrictive amount of a rotary magnetic member for transmitting the torque which is detected by means of a magnetic sensor. The measuring apparatus comprises: a timing signal generator for dividing the rotational angle of the rotary magnetic member into a given number of segments and outputting a predetermined timing signal every time a rotational angle of the rotary magnetic member passes each segment; an offset signal generator for setting in advance for each segment an offset signal to be output from the magnetic sensor depending upon the rotational angle of the rotary magnetic member, and subsequently outputting an offset signal which corresponds to a respective segment on the basis of the timing signal; and a subtractor for subtracting the offset signal from the detection signal of the magnetic sensor at each segment, whereby the transmitted torque of the rotary magnetic member is measured on the basis of the output of the subtractor.
    • 一种扭矩测量装置,用于基于通过磁传感器检测的用于传递转矩的旋转磁性构件的磁致伸缩量来检测非接触状态下的转矩。 测量装置包括:定时信号发生器,用于将旋转磁性构件的旋转角度分成给定数量的段,并且每当旋转磁性构件的旋转角度经过每个段时输出预定的定时信号; 偏移信号发生器,用于根据旋转磁性构件的旋转角度预先为每个段设置要从磁性传感器输出的偏移信号,并且随后基于定时输出对应于各个段的偏移信号 信号; 以及减法器,用于从每个段处的磁传感器的检测信号中减去偏移信号,由此基于减法器的输出来测量旋转磁性构件的传递转矩。