{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T05:39:23Z","timestamp":1773898763206,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2021,10,2]],"date-time":"2021-10-02T00:00:00Z","timestamp":1633132800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key R&amp;D Program of China","award":["2018YFC1503803"],"award-info":[{"award-number":["2018YFC1503803"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Traditional fluxgate sensors used in geomagnetic field observations are large, costly, power-consuming and often limited in their use. Although the size of the micro-fluxgate sensors has been significantly reduced, their performance, including indicators such as accuracy and signal-to-noise, does not meet observational requirements. To address these problems, a new race-track type probe is designed based on a magnetic core made of a Co-based amorphous ribbon. The size of this single-component probe is only \u03a610 mm \u00d7 30 mm. The signal processing circuit is also optimized. The whole size of the sensor integrated with probes and data acquisition module is \u03a670 mm \u00d7 100 mm. Compared with traditional fluxgate and micro-fluxgate sensors, the designed sensor is compact and provides excellent performance equal to traditional fluxgate sensors with good linearity and RMS noise of less than 0.1 nT. From operational tests, the results are in good agreement with those from a standard fluxgate magnetometer. Being more suitable for modern dense deployment of geomagnetic observations, this small-size fluxgate sensor offers promising research applications at lower costs.<\/jats:p>","DOI":"10.3390\/s21196598","type":"journal-article","created":{"date-parts":[[2021,10,10]],"date-time":"2021-10-10T21:37:49Z","timestamp":1633901869000},"page":"6598","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Design of a Low-Cost Small-Size Fluxgate Sensor"],"prefix":"10.3390","volume":"21","author":[{"given":"Xiaoyu","family":"Shen","sequence":"first","affiliation":[{"name":"Institute of Geophysics, China Earthquake Administration, No. 5 Minzudaxue Nanlu, Haidian District, Beijing 100081, China"}]},{"given":"Yuntian","family":"Teng","sequence":"additional","affiliation":[{"name":"Institute of Geophysics, China Earthquake Administration, No. 5 Minzudaxue Nanlu, Haidian District, Beijing 100081, China"}]},{"given":"Xingxing","family":"Hu","sequence":"additional","affiliation":[{"name":"Institute of Geophysics, China Earthquake Administration, No. 5 Minzudaxue Nanlu, Haidian District, Beijing 100081, China"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,2]]},"reference":[{"key":"ref_1","unstructured":"Ripka, P. 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