商用各向异性磁阻磁强计的多元非线性回归验证与标定

IF 1.8 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Geoscientific Instrumentation Methods and Data Systems Pub Date : 2023-09-15 DOI:10.5194/gi-12-201-2023

Nicholas Belsten, Mary Knapp, Rebecca Masterson, Cadence Payne, Kristen Ammons, Frank D. Lind, Kerri Cahoy

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引用次数: 0

摘要

摘要市售的各向异性磁阻(AMR)磁强计在小尺寸、重量和功率(SWaP)封装下的灵敏度约为1纳特斯拉(nT)。然而，AMR磁强计的精度会受到静态偏移、增益不确定性、离轴耦合和温度效应等特性的影响。本文介绍了对霍尼韦尔HMC1053磁力计的这些影响程度的测量，并评估了一种使用24参数测量方程的多元非线性回归校准所观察到的影响的方法。所提出的校正方法使实验数据的均方根误差向量范数从4300 nT降至72 nT。该校准方法已开发用于AERO(极光发射无线电观测者)和VISTA(使用AERO的矢量干涉空间技术)立方体卫星任务，但该方法和结果可能适用于其他资源受限的磁力计，这些磁力计的精度受到类似HMC1053 AMR磁力计的偏移、增益、离轴和热效应的限制。

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Verification and calibration of a commercial anisotropic magnetoresistive magnetometer by multivariate non-linear regression

Abstract. Commercially available anisotropic magnetoresistive (AMR) magnetometers exhibit on the order of 1 nanotesla (nT) sensitivity in small size, weight, and power (SWaP) packages. However, AMR magnetometer accuracy is diminished by properties such as static offsets, gain uncertainty, off-axis coupling, and temperature effects. This work presents a measurement of the magnitude of these effects for a Honeywell HMC1053 magnetometer and evaluates a method for calibrating the observed effects by multivariate non-linear regression using a 24-parameter measurement equation. The presented calibration method has reduced the vector norm of the root mean square error from 4300 to 72 nT for the data acquired in this experiment. This calibration method has been developed for use on the AERO (Auroral Emissions Radio Observer) and VISTA (Vector Interferometry Space Technology using AERO) CubeSat missions, but the methods and results may be applicable to other resource-constrained magnetometers whose accuracies are limited by the offset, gain, off-axis, and thermal effects that are similar to the HMC1053 AMR magnetometer.

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来源期刊

Geoscientific Instrumentation Methods and Data Systems GEOSCIENCES, MULTIDISCIPLINARYMETEOROLOGY-METEOROLOGY & ATMOSPHERIC SCIENCES

CiteScore

3.70

自引率

0.00%

发文量

审稿时长

37 weeks

期刊介绍： Geoscientific Instrumentation, Methods and Data Systems (GI) is an open-access interdisciplinary electronic journal for swift publication of original articles and short communications in the area of geoscientific instruments. It covers three main areas: (i) atmospheric and geospace sciences, (ii) earth science, and (iii) ocean science. A unique feature of the journal is the emphasis on synergy between science and technology that facilitates advances in GI. These advances include but are not limited to the following: concepts, design, and description of instrumentation and data systems; retrieval techniques of scientific products from measurements; calibration and data quality assessment; uncertainty in measurements; newly developed and planned research platforms and community instrumentation capabilities; major national and international field campaigns and observational research programs; new observational strategies to address societal needs in areas such as monitoring climate change and preventing natural disasters; networking of instruments for enhancing high temporal and spatial resolution of observations. GI has an innovative two-stage publication process involving the scientific discussion forum Geoscientific Instrumentation, Methods and Data Systems Discussions (GID), which has been designed to do the following: foster scientific discussion; maximize the effectiveness and transparency of scientific quality assurance; enable rapid publication; make scientific publications freely accessible.