Design of a suspended high-stability fluxgate sensor. (29th March 2021)
- Record Type:
- Journal Article
- Title:
- Design of a suspended high-stability fluxgate sensor. (29th March 2021)
- Main Title:
- Design of a suspended high-stability fluxgate sensor
- Authors:
- Wang, Xiaomei
Teng, Yuntian
Fan, Xiaoyong
Wang, Chen
Wu, Qiong
Ma, Jiemei - Abstract:
- Abstract: To achieve long-term geomagnetic vector field measurements, high resolution, low noise, reliability, and great stability are required, relative to the recording instrument. In this paper, we report the design and production of a high-performance magnetometer based on the fluxgate effect. To avoid drift due to the tilt of the observation pillar, which is often the main cause of baseline drift, and leveling error due to the installation process, the developed sensor was fixed to a suspended platform for automatic horizontal leveling. A special gimbaled construction was used, which allowed automatic leveling of the vertical position of the z -axis within tilts of ±6° of arc. The performance of the proposed sensor was tested in a zero-magnetic-field device, and the results showed that the accuracy of the scale factor was 0.01%, the standard deviation of the residuals was 0.1723, and the noise was ⩽0.08 nT (Peak-Peak). At the time of this research, the developed instrument had been in continuous operation for >6 months in the Jinghai geomagnetic observatory. The monthly residual standard deviation maximum values of the D, H, and Z components were 0.68 nT, 0.58 nT, and 0.44 nT respectively, which were smaller than the requirements of the China Geomagnetic Network. Therefore, the observational data and the baseline values indicated that the prototype was stable and reliable. Additionally, owing to its integrated design, the prototype was easy to carry and set up, so itAbstract: To achieve long-term geomagnetic vector field measurements, high resolution, low noise, reliability, and great stability are required, relative to the recording instrument. In this paper, we report the design and production of a high-performance magnetometer based on the fluxgate effect. To avoid drift due to the tilt of the observation pillar, which is often the main cause of baseline drift, and leveling error due to the installation process, the developed sensor was fixed to a suspended platform for automatic horizontal leveling. A special gimbaled construction was used, which allowed automatic leveling of the vertical position of the z -axis within tilts of ±6° of arc. The performance of the proposed sensor was tested in a zero-magnetic-field device, and the results showed that the accuracy of the scale factor was 0.01%, the standard deviation of the residuals was 0.1723, and the noise was ⩽0.08 nT (Peak-Peak). At the time of this research, the developed instrument had been in continuous operation for >6 months in the Jinghai geomagnetic observatory. The monthly residual standard deviation maximum values of the D, H, and Z components were 0.68 nT, 0.58 nT, and 0.44 nT respectively, which were smaller than the requirements of the China Geomagnetic Network. Therefore, the observational data and the baseline values indicated that the prototype was stable and reliable. Additionally, owing to its integrated design, the prototype was easy to carry and set up, so it was very suitable for short-term earthquake tracking and the intensive monitoring of magnetic anomaly areas. … (more)
- Is Part Of:
- Measurement science & technology. Volume 32:Number 6(2021)
- Journal:
- Measurement science & technology
- Issue:
- Volume 32:Number 6(2021)
- Issue Display:
- Volume 32, Issue 6 (2021)
- Year:
- 2021
- Volume:
- 32
- Issue:
- 6
- Issue Sort Value:
- 2021-0032-0006-0000
- Page Start:
- Page End:
- Publication Date:
- 2021-03-29
- Subjects:
- geomagnetic vector field -- fluxgate sensor -- suspended -- baseline value
Physical measurements -- Periodicals
Scientific apparatus and instruments -- Periodicals
Equipment and Supplies -- Periodicals
Science -- instrumentation -- Periodicals
Technology -- instrumentation -- Periodicals
Mesures physiques -- Périodiques
Physical measurements
Scientific apparatus and instruments
Periodicals
502.87 - Journal URLs:
- http://iopscience.iop.org/0957-0233/ ↗
http://www.iop.org/Journals/mt ↗
http://ioppublishing.org/ ↗ - DOI:
- 10.1088/1361-6501/abd514 ↗
- Languages:
- English
- ISSNs:
- 0957-0233
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
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