### 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 |

巻 | 24 |

発行部数 | 6 |

DOI | |

出版物ステータス | 出版済み - 11 1988 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

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

### これを引用

*IEEE Transactions on Magnetics*,

*24*(6), 2886-2888. https://doi.org/10.1109/20.92277

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

研究成果: ジャーナルへの寄稿 › 記事

*IEEE Transactions on Magnetics*, 巻. 24, 番号 6, pp. 2886-2888. https://doi.org/10.1109/20.92277

}

TY - JOUR

T1 - Detection of instantaneous torque using the magnetostrictive effect in a practical ferromagnetic shaft

AU - Sasada, I.

AU - Tanaka, T.

AU - Baba, M.

AU - Harada, K.

PY - 1988/11

Y1 - 1988/11

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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0024111176&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024111176&partnerID=8YFLogxK

U2 - 10.1109/20.92277

DO - 10.1109/20.92277

M3 - Article

AN - SCOPUS:0024111176

VL - 24

SP - 2886

EP - 2888

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 6

ER -