In Situ Calibration Method for an MGT Detection System Based on Helmholtz Coils.

Ziqiang Yuan, Chen Wang, Yanzhang Xie, Yingzi Zhang, Wenyi Liu

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

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1 · What the graph read from it

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Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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5 · Who and what money

Authors and funding

5 authors.

Ziqiang YuanState Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.ORCID 0009-0008-3545-8878

Chen WangState Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.

Yanzhang XiePrecision and Intelligence Laboratory, Department of Measurement and Control Technology and Instruments, Chongqing University, Chongqing 400065, China.

Yingzi ZhangState Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.ORCID 0000-0002-8911-8595

Wenyi LiuState Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.

Funding

Foundation of State Key Laboratory of Dynamic Measurement Technology 2023-SYSJJ-05National Natural Science Foundation of China 62201523National Natural Science Foundation of China U24A20288

6 · The paper itself

Abstract

Vector magnetometer arrays are essential for ferromagnetic target detection and MGT measurement, but their performance is limited by proportional factor errors, triaxial non-orthogonality, soft/hard iron interference, and inconsistent array orientations. Traditional rotation-based scalar calibration requires magnetic-free turntables or manual multi-orientation operations, introducing mechanical noise, orientation perturbations, and poor repeatability. This paper proposes an in situ rapid calibration method for MGT systems using triaxial Helmholtz coils. By generating three-dimensional magnetic field sequences of constant magnitude and random directions while keeping the sensors stationary, the method replaces conventional rotational excitation. A two-stage rapid calibration algorithm is developed to achieve individual sensor error modeling and array relative calibration. Experimental results show substantial improvements. The tensor invariant C

Indexed as

Helmholtz coilmagnetometer arraymagnetometer errorrapid calibration method

Identifiers

PMID41516626

DOI10.3390/s26010191

PMCPMC12788297

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.