Three Axis Fluxgate Magnetometer Sensor Calibration

Hosseinzadeh, Ali; Khayatian, Alireza; Karimagahee, Paknoos; Daneshmandi, Omidreza; Raeesi, Behrooz

doi:10.1109/iraniancee.2019.8786508

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…In 2015, Zikmund et al proposed a vector correction method using scalar magnetometers and Helmholtz coil that, unlike other methods, does not require offsetting the magnitude of the Earth's magnetic field and does not require moving the sensor [9]. In 2019, Ali et al proposed a sensor error correction method using a uniaxial Helmholtz coil and combining least squares with BP neural networks.The uniaxial Helmholtz coil is used to generate a reference magnetic field, the errors such as accuracy and nonorthogonality of the sensor are corrected, and the effect of noise on the measurement results is compensated [10]. In the same year, Janosek et al proposed a calibration method for DC precision magnetic sensors with interference compensation in a weak magnetic environment, which improved the environmental adaptability of the sensors and achieved good calibration results in a laboratory environment with significant magnetic interference [11].…”

Section: Introductionmentioning

confidence: 99%

Design of A Three-axis Helmholtz Coil for Magnetic Sensor Calibration

Zhang¹,

Li²

2023

AJST

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Accurate measurement of magnetic sensor components is always an important issue in magnetic field applications, but there are unavoidable errors in the sensor system that need to be corrected before use. The common scalar correction method is difficult to effectively correct the sensor component because it requires a uniform and stable background magnetic field and depends on the magnetic field modulus. Therefore, a set of triaxial Helmholtz coils that can be used for sensor vector correction is designed to generate a controlled standard magnetic field. The design index of the coils, the size of the uniform zone, and the relationship between the magnetic field and the current were analyzed to provide a basis for the effective calibration of the sensor components. The measurement results show that the size of the uniform zone and the accuracy of the magnetic field of the coils designed in this paper meet the design requirements. Meanwhile, by using the coils in the calibration of the sensor array and the positioning of the magnetic target, the sensor error is reduced by three orders of magnitude, and the positioning accuracy of the magnetic target reaches 0.1 m with good practical effect.

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Section: Introductionmentioning

confidence: 99%

Design of A Three-axis Helmholtz Coil for Magnetic Sensor Calibration

Zhang¹,

Li²

2023

AJST

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“…Since fluxgate magnetometer are low cost they can be co integrated along with circuitry on a die to be more power efficient than the available state of the art [4]. Calibration procedure of a fluxgate sensor can be achieved with a simple neural network [1]. A sensitive industrial grade magnetometer is very expensive and cannot be affordable for small research purposes [8].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Three axis Fluxgate Magnetometer and its Applications

Senthilmurugan*,

Ganesh,

Prabhu

2020

IJITEE

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A scientific instrument which measures the magnetic field strength and its direction is known as Magnetometer. In this article a three axis Fluxgate Magnetometer is constructed by using simple ring core and simple drive circuits instead of specialized components like Hall Effect sensors. This type of Fluxgate magnetometers is working on the principle of magnetic flux linking a coil depends on the orientation of the coil with respect to the earth’s magnetic field lines. Here the three single axis fluxgate magnetometers are designed and placed perpendicular to each other on a board. The circuit is designed to produce 100 KHz frequency and to measure the Magnetic field in the range up to 7 Tesla. The sensitivity is tested through an external electromagnet. The readings are obtained in LAB-VIEW platform and the three-axis data is displayed.

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Fabrication Advancements in Integrated Fluxgate Sensors: A Mini Review

2022

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Research on magnetic sensors has been carried out in recent years to enhance sensing capability, enabling us to understand the Earth's magnetic field changes [1] with better sensitivities of 10 À10 to 10 À2 T. [2] Magnetic field sensors have been extensively investigated according to their operating principles and actions in various applications. Sensitivity and selectivity are the two essential properties crucial in the evolution of magnetic field sensors to achieve high fidelity outputs. The former is strengthened by increasing the sensor area and improvements to the planar surface with various Nano-materials. In contrast, the latter is improved by using multiple materials and techniques to enhance interfacial interactions.Magnetic sensors detect disturbances and changes in magnetic fields such as force, direction, and flux. It is a transducer that converts a magnetic field into an electrical voltage. There are several types of magnetic field sensors, each with its own sensitivity range. In addition to sensitivity, the temperature range, the physical size of the sensor, and its on-chip manufacturability must all be considered. Magnetic fields of less than 100 pT are extremely weak and far below the earth's magnetic field. Earth magnetic field sensors have a sensitivity range of 10 μT to a few micro-Tesla, while bias magnet field (high field) sensors have a sensitivity of more than 1 mT.Magnetic fields of less than 100 pT are extremely weak and far below the earth's magnetic field. Earth magnetic field sensors have a sensitivity range of 10 μT to a few micro-Tesla, while bias magnet field (high field) sensors have a sensitivity of more than 1 mT. The most sensitive low-field sensor is the superconducting quantum interference device (SQUID). It is based on Brian J. Josephson's research on a point-contact connection for measuring extremely low currents.The SQUID ring, the radio-frequency coil, and the big antenna loop are all superconducting components of the SQUID sensor. All three must be cooled to the point where they become superconducting. The SQUID itself is small, but the requirement for liquid helium cooling makes the entire apparatus big and hefty. Magnetoresistive sensors (MR) have a high sensitivity, are inexpensive to manufacture, and are small in size. However, they have poor noise performance and linearity, as well as a small dynamic range, making them unappealing and unsuitable for many low-noise applications. Furthermore, as the power usage is reduced, their sensitivity degrades.Search-coil or induction sensors are high-sensitivity, lowpower sensors, but their sensitivity decreases as the cross-section area decreases, making miniaturization ineffective. Because search coils can detect an alternating current magnetic field, they cannot detect a static magnetic field like the Earth's magnetic field. Magnetic sensors based on semiconductors, such as Hall-Effect sensors, magnetotransistors, and magnetodiodes, are very small in size. Because of its low manufacturing cost

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Three Axis Fluxgate Magnetometer Sensor Calibration

Cited by 5 publications

References 11 publications

Design of A Three-axis Helmholtz Coil for Magnetic Sensor Calibration

Design of A Three-axis Helmholtz Coil for Magnetic Sensor Calibration

Design and Implementation of Three axis Fluxgate Magnetometer and its Applications

Fabrication Advancements in Integrated Fluxgate Sensors: A Mini Review

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