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首页> 外文期刊>IEEE Transactions on Magnetics >Static characteristics of torque detection from carburized steel shafts
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Static characteristics of torque detection from carburized steel shafts

机译：渗碳钢轴扭矩检测的静态特性

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Static characteristics of a shaft torque sensor using low-profile pickup heads were studied for a carburized nickel chromium molybdenum steel shaft (SNCM420 in JIS). It was found that the hysteresis of the input-output relationship was generally small. The direction of traversal around the hysteresis loop was changed as the amplitude of the excitation current changed. It was shown that an optimum operating condition exists for the torque sensor in which hysteresis achieves a minimum value yet the sensitivity remains high. The optimum excitation current was 0.3 A at the excitation frequency 60 kHz, where the total power loss at the pickup heads was 0.37 W. Under this operating condition, the hysteresis was extremely small, and the linearity was better than 0.6%. Zero-level fluctuation and sensitivity fluctuation were /spl plusmn/3.2%/FS (FS: 400 Nm for 25 mm/spl phi/ shaft) and /spl plusmn/1.4%, respectively.
机译：对于渗碳镍铬钼钢轴（JIS中的SNCM420），研究了使用薄型拾音头的轴扭矩传感器的静态特性。发现输入-输出关系的磁滞通常很小。随着励磁电流幅度的变化，磁滞回线的运行方向也发生了变化。结果表明，对于扭矩传感器来说，存在最佳的工作条件，在该条件下磁滞达到最小值，而灵敏度仍然很高。在60 kHz的激励频率下，最佳激励电流为0.3 A，在磁头处的总功率损耗为0.37W。在这种工作条件下，磁滞非常小，线性度优于0.6％。零水平波动和灵敏度波动分别为/ spl plusmn / 3.2％/ FS（FS：25 mm / spl phi /轴为400 Nm）和/ spl plusmn / 1.4％。

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