Torsion sensor based on the coil-less fluxgate effect

详细信息	查看全文 | 推荐本文 |

• 作者：S. Atalay ; ^{satalay@yahoo.com}  ; [Author Vitae] ; N. Bayri ; A. Fidan ; F.E. Atalay ; V. Yagmur
• 关键词：Fluxgate ; Torsion sensor ; Amorphous wire ; Magnetic sensor
• 刊名：Sensors and Actuators A ; Physical
• 出版年：2012
• 期刊代码：160_09244247
• 类别：et
• 出版时间：May, 2012
• 卷：178
• 期：Complete
• 页码：100-103
• 文件大小：423 K

摘要

The torsion dependence of the coil-less fluxgate properties of amorphous (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅ wire was investigated. The results show that the second harmonic of the output voltage from the wire ends, U_wire, varied linearly at the 卤30 蟺 rad/m torsion range for as-cast wire and 卤5 蟺 rad/m torsion range for annealed wire. It was also found that if the sample was annealed at higher torsion, the curve shifted negatively or positively depending on the direction of torsion applied during the annealing. Most importantly, the output signal changed its sign as the direction of external torsion reversed, and therefore the proposed torsion sensor could detect whether torsion was in the negative or positive (clockwise or anti-clockwise) direction.