Magnetic sensor based on giant magneto-impedance effect using the self-regulating technology on the bias magnetic field

Zhang, Dasha; Pan, Zhongming; Zhou, Han; Zhang, Wenna

doi:10.1016/j.sna.2016.09.005

Cited by 16 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…earth's magnetic field with magnetic flux densities between 25 µT and 60 µT [40, p. 43] is relatively low. To compensate for such external fields, self-regulating operating point stabilization approaches such as those already developed for giant magnetoimpedance (GMI) sensors [41] can be used. However, an operating point stabilization, i.e.…”

Section: Resonance Detuning and Magnetic Sensitivitymentioning

confidence: 99%

Fundamental Noise Limits and Sensitivity of Piezoelectrically Driven Magnetoelastic Cantilevers

Durdaut

Rubiola

Friedt

et al. 2020

J. Microelectromech. Syst.

View full text Add to dashboard Cite

Magnetoelastic sensors for the detection of lowfrequency and low-amplitude magnetic fields are in the focus of research for more than 30 years. In order to minimize the limit of detection (LOD) of such sensor systems, it is of high importance to understand and to be able to quantify the relevant noise sources. In this contribution, cantilever-type electromechanical and magnetoelastic resonators, respectively, are comprehensively investigated and mathematically described not only with regard to their phase sensitivity but especially to the extent of the sensor-intrinsic phase noise. Both measurements and calculations reveal that the fundamental LOD is limited by additive phase noise due to thermal-mechanical noise of the resonator, i.e. by thermally induced random vibrations of the cantilever, and by thermal-electrical noise of the piezoelectric material. However, due to losses in the magnetic material parametric flicker phase noise arises, limiting the overall performance. In particular, it is shown that the LOD is virtually independent of the magnetic sensitivity but is solely determined by the magnetic losses. Instead of the sensitivity, the magnetic losses, represented by the material's effective complex permeability, should be considered as the most important parameter for the further improvement of such sensors in the future. This implication is not only valid for magnetoelastic cantilevers but also applies to any type of magnetoelastic resonator.

show abstract

Section: Resonance Detuning and Magnetic Sensitivitymentioning

confidence: 99%

Fundamental Noise Limits and Sensitivity of Piezoelectrically Driven Magnetoelastic Cantilevers

Durdaut

Rubiola

Friedt

et al. 2020

J. Microelectromech. Syst.

View full text Add to dashboard Cite

show abstract

“…This can be achieved in a myriad of ways, including optimizing the composition of the wires or modifying the domain structures with stress, heat treatment, and magnetic field annealing. Further improvements to signal processing can be achieved by carefully engineering circuits [80,81], understanding noise behavior [82], and exploring more complex sensor designs that integrate multiple sensing elements for signal filtering [20][21][22]46,[83][84][85][86][87].…”

Section: Detection Of Magnetic Particlesmentioning

confidence: 99%

Magnetoimpedance Biosensors and Real-Time Healthcare Monitors: Progress, Opportunities, and Challenges

et al. 2022

View full text Add to dashboard Cite

A small DC magnetic field can induce an enormous response in the impedance of a soft magnetic conductor in various forms of wire, ribbon, and thin film. Also known as the giant magnetoimpedance (GMI) effect, this phenomenon forms the basis for the development of high-performance magnetic biosensors with magnetic field sensitivity down to the picoTesla regime at room temperature. Over the past decade, some state-of-the-art prototypes have become available for trial tests due to continuous efforts to improve the sensitivity of GMI biosensors for the ultrasensitive detection of biological entities and biomagnetic field detection of human activities through the use of magnetic nanoparticles as biomarkers. In this review, we highlight recent advances in the development of GMI biosensors and review medical devices for applications in biomedical diagnostics and healthcare monitoring, including real-time monitoring of respiratory motion in COVID-19 patients at various stages. We also discuss exciting research opportunities and existing challenges that will stimulate further study into ultrasensitive magnetic biosensors and healthcare monitors based on the GMI effect.

show abstract

“…In the case of magnetic interference in geomagnetic measurement, effective MEMS measurements are used to correct gross error to improve positioning accuracy. D. Zhang et al proposed to use magnetic sensor selfadjusting technology to assess bias magnetic field based on giant magneto-impedance effect [15]. A.…”

Section: Introductionmentioning

confidence: 99%

A Fault-Tolerant Integrated Borehole Trajectory Location Method Based on Geomagnetism/IMU of MWD

Yang

Luo

et al. 2019

IEEE Access

View full text Add to dashboard Cite

In the oil industry, directional drilling technology plays a significant role in oil-gas exploration.The key to success of directional drilling technology is locate the borehole accurately using measurement while drilling instruments. Measurement While Drilling(MWD) technology has the problems of data loss and gross error in complex down hole environment. Aiming at the problems that gross error and data missed consequences the accuracy of positioning calculation seriously, this paper presents a method of fault-tolerant integrated borehole trajectory location based on geomagnetism/IMU of MWD system. Firstly, the geomagnetic survey system is established to locate the borehole position based on tri-axis fluxgate and tri-axis accelerometer. The Inertial Measurement Unit(IMU) calculates the borehole trajectory at the same time. Then, the fault-tolerant judgment mechanism is introduced to discriminate and evaluate data loss and gross error of measurement parameters. Furthermore, Kalman Filter algorithm is implied to construct faulttolerant integrated borehole trajectory positioning system. Finally, the simulation experiment is performed on the drilling experimental platform. The experimental result shows that the fault-tolerant integrated borehole trajectory positioning system can detect data loss and gross error effectively. In addition, the location precision of the fault-tolerant integrated positioning system can be maintained within 1 meter when the time of data missed and gross error state lasts for 6min respectively. From the simulation experiments, comparing with the position calculation of pure geomagnetism, and the method of integrated MEMS and geomagnetism, the precision of the fault-tolerant integrated location calculation is improved by 68.7% and 62.8% respectively.INDEX TERMS Measurement while drilling, borehole trajectory, geomagnetic survey, inertial measurement unit, fault-tolerant integrated positioning.

show abstract

Magnetic sensor based on giant magneto-impedance effect using the self-regulating technology on the bias magnetic field

Cited by 16 publications

References 23 publications

Fundamental Noise Limits and Sensitivity of Piezoelectrically Driven Magnetoelastic Cantilevers

Fundamental Noise Limits and Sensitivity of Piezoelectrically Driven Magnetoelastic Cantilevers

Magnetoimpedance Biosensors and Real-Time Healthcare Monitors: Progress, Opportunities, and Challenges

A Fault-Tolerant Integrated Borehole Trajectory Location Method Based on Geomagnetism/IMU of MWD

Contact Info

Product

Resources

About