The Sensing Characteristics of Ring-Core Fluxgate Sensors at Temperature Interval of-50 °C to+85 °C

被引：7

作者：

Can, Hava ^{[1
,2
]}

Ecevit, Fevzi Necati ^{[2
]}

Svec, Peter, Jr. ^{[3
]}

Svec, Peter, Sr. ^{[3
]}

Topal, Ugur ^{[1
]}

机构：

[1] TUBITAK Natl Metrol Inst, Magnet Measurements Lab, TR-41470 Gebze, Turkey

[2] Gebze Tech Univ, Dept Phys, TR-41400 Gebze, Turkey

[3] Slovak Acad Sci, Inst Phys, Metal Phys Dept, Bratislava 84511, Slovakia

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2018年 / 54卷 / 07期

关键词：

Amorphous metallic core; fluxgate magnetometer (FGM); sensors; temperature; MAGNETOMETER;

D O I：

10.1109/TMAG.2018.2835771

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

sensor temperature. Therefore, their stabilization against temperature is required especially for outdoor applications. In this paper, temperature dependencies of fluxgate sensors using four cobalt-based cores, two homemade, and two commercially obtained were analyzed at temperature interval of -50 degrees C to +85 degrees C in the climatic chamber. In addition to differences seen on the temperature dependence of the studied cores, the most stable one was the sensor using Co65Fe6Cr7Si8B14 core. Although the variation of the scale factor in the 135 degrees C temperature range was 17% in magnitude, it was decreased to 6% with a serial resistor connected to the pick-up coil, where the sensor signal is induced by measured dc field. By specifying the scale factor versus temperature dependence curves, we could decrease the error coming from temperature variations to less than 2%. Experimental results reveal that the sensors cored with Vitrovac6025 and Metglas2714A ribbons can also be preferred when they are evaluated in terms of both temperature dependence and noise levels.

引用

页数：6