Detection of instantaneous torque using the magnetostrictive effect in a practical ferromagnetic shaft

I. Sasada, T. Tanaka, M. Baba, K. Harada

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

A method is presented by which instantaneous torque can be detected from a practical ferromagnetic shaft using magnetic head type pickups. The method assumes the linearity for the torque sensor. The output of the torque sensor is sampled per 2π/N radian, from which corresponding zero level is subtracted and then multiplied by a coefficient to correct sensitivity fluctuation. The coefficients for N sampling points are inversely proportional to the sensitivity at each sampling point. The coefficients were estimated from the sensitivities measured at M points (M<<N). Demonstrations are presented to show the usefulness of the method, using a S45C carbon steel shaft with no heat- treatment. Nominal carbon content of S45C material is about 0.42%~0.48%, after JIS Handbook. Peak-to-peak flucluation in zero level and that in sensitivity wereoriginally about 30/FS(FS=10Nm) and 10%~15%, respectively. After application of the method, total error was reduced within ± 3%/FS when M=8 and N=250.

元の言語英語
ページ(範囲)2886-2888
ページ数3
ジャーナルIEEE Transactions on Magnetics
24
発行部数6
DOI
出版物ステータス出版済み - 11 1988

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Torque
Magnetic heads
Sampling
Pickups
Sensors
Carbon steel
Demonstrations
Carbon
Heat treatment

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

これを引用

Detection of instantaneous torque using the magnetostrictive effect in a practical ferromagnetic shaft. / Sasada, I.; Tanaka, T.; Baba, M.; Harada, K.

:: IEEE Transactions on Magnetics, 巻 24, 番号 6, 11.1988, p. 2886-2888.

研究成果: ジャーナルへの寄稿記事

Sasada, I. ; Tanaka, T. ; Baba, M. ; Harada, K. / Detection of instantaneous torque using the magnetostrictive effect in a practical ferromagnetic shaft. :: IEEE Transactions on Magnetics. 1988 ; 巻 24, 番号 6. pp. 2886-2888.
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abstract = "A method is presented by which instantaneous torque can be detected from a practical ferromagnetic shaft using magnetic head type pickups. The method assumes the linearity for the torque sensor. The output of the torque sensor is sampled per 2π/N radian, from which corresponding zero level is subtracted and then multiplied by a coefficient to correct sensitivity fluctuation. The coefficients for N sampling points are inversely proportional to the sensitivity at each sampling point. The coefficients were estimated from the sensitivities measured at M points (M<<N). Demonstrations are presented to show the usefulness of the method, using a S45C carbon steel shaft with no heat- treatment. Nominal carbon content of S45C material is about 0.42{\%}~0.48{\%}, after JIS Handbook. Peak-to-peak flucluation in zero level and that in sensitivity wereoriginally about 30/FS(FS=10Nm) and 10{\%}~15{\%}, respectively. After application of the method, total error was reduced within ± 3{\%}/FS when M=8 and N=250.",
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N2 - A method is presented by which instantaneous torque can be detected from a practical ferromagnetic shaft using magnetic head type pickups. The method assumes the linearity for the torque sensor. The output of the torque sensor is sampled per 2π/N radian, from which corresponding zero level is subtracted and then multiplied by a coefficient to correct sensitivity fluctuation. The coefficients for N sampling points are inversely proportional to the sensitivity at each sampling point. The coefficients were estimated from the sensitivities measured at M points (M<<N). Demonstrations are presented to show the usefulness of the method, using a S45C carbon steel shaft with no heat- treatment. Nominal carbon content of S45C material is about 0.42%~0.48%, after JIS Handbook. Peak-to-peak flucluation in zero level and that in sensitivity wereoriginally about 30/FS(FS=10Nm) and 10%~15%, respectively. After application of the method, total error was reduced within ± 3%/FS when M=8 and N=250.

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