CAJ | 학술논문

轴系运转状态在线监测的主要内容为转轴扭矩的测量。对于基于非接触式转轴扭矩的测量方法，能否精确地测量轴系扭转角度将决定扭矩和功率测量结果的准确性。分析了原系统的偏心误差，以及码盘安装偏心对光电检测器扫过码盘扇形通光孔的时间的影响，并通过几何分析以及运动分解给出了码盘扇形通光孔的通光时间的偏移的具体数学表达式，以此消除测量系统的偏心误差。研究结果对转轴扭矩测量仪的设计提供了理论指导，有利于提高此类设备的测量精度。
축계운전상태재선감측적주요내용위전축뉴구적측량。대우기우비접촉식전축뉴구적측량방법，능부정학지측량축계뉴전각도장결정뉴구화공솔측량결과적준학성。분석료원계통적편심오차，이급마반안장편심대광전검측기소과마반선형통광공적시간적영향，병통과궤하분석이급운동분해급출료마반선형통광공적통광시간적편이적구체수학표체식，이차소제측량계통적편심오차。연구결과대전축뉴구측량의적설계제공료이론지도，유리우제고차류설비적측량정도。
The main content of the online monitoring of operation statues of shaft is the measure-ment of shaft torque.For the method that the shaft torque is gotten by the non-contact measure-ment,the accuracy for measurement of torsional angle determines the correction of measurement result for shaft torque.In this paper,the eccentric error of original system is analyzed,and the effect of eccentric instal ment of the encoder on the time that the photo-electric sweeps sectorial photoelectric light pass hole is also analyzed.Then the specific mathematical expression of the time offset that the light pass the optical aperture is given by geometric analysis and motion de-composition.And the eccentric error of the measurement system is eliminated according to the a-nalysis.The research of this paper wil provide theoretical guidance for the design of torque measuring instrument,and it is helpful to improve measurement accuracy of this kind of devices.