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Sensors 2014, 14(5), 8423-8429; doi:10.3390/s140508423
Article

A High-Sensitivity Current Sensor Utilizing CrNi Wire and Microfiber Coils

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Received: 25 January 2014; in revised form: 18 April 2014 / Accepted: 2 May 2014 / Published: 12 May 2014
(This article belongs to the Section Physical Sensors)
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Abstract: We obtain an extremely high current sensitivity by wrapping a section of microfiber on a thin-diameter chromium-nickel wire. Our detected current sensitivity is as high as 220.65 nm/A2 for a structure length of only 35 μm. Such sensitivity is two orders of magnitude higher than the counterparts reported in the literature. Analysis shows that a higher resistivity or/and a thinner diameter of the metal wire may produce higher sensitivity. The effects of varying the structure parameters on sensitivity are discussed. The presented structure has potential for low-current sensing or highly electrically-tunable filtering applications.
Keywords: microfiber; current sensor; sensitivity; chrome-nickel wire microfiber; current sensor; sensitivity; chrome-nickel wire
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Xie, X.; Li, J.; Sun, L.-P.; Shen, X.; Jin, L.; Guan, B.-O. A High-Sensitivity Current Sensor Utilizing CrNi Wire and Microfiber Coils. Sensors 2014, 14, 8423-8429.

AMA Style

Xie X, Li J, Sun L-P, Shen X, Jin L, Guan B-O. A High-Sensitivity Current Sensor Utilizing CrNi Wire and Microfiber Coils. Sensors. 2014; 14(5):8423-8429.

Chicago/Turabian Style

Xie, Xiaodong; Li, Jie; Sun, Li-Peng; Shen, Xiang; Jin, Long; Guan, Bai-ou. 2014. "A High-Sensitivity Current Sensor Utilizing CrNi Wire and Microfiber Coils." Sensors 14, no. 5: 8423-8429.



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