Effective optimization of magnetic noise for a Metglas/Pb(Zr,Ti)O3 magnetoelectric sensor array in an open environment

Shen, Ying; McLaughlin, K. L.; Gao, Junqi; Li, Menghui; Li, Jie‐Fang; Viehland, Dwight

doi:10.1016/j.matlet.2012.10.003

Cited by 11 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its drawbacks at this point are, however, a relatively large size, need for a magnetic bias field and a high sensi tivity to vibrations. Numerous strategies have already been developed in the literature in order to overcome these prob lems, such as the integration of a bias field into selfbiased ME heterostructures [1] and a gradiometer [68] or tuning fork structure [69] with two identical ME cantilevers, where the common mode vibrational noise can be cancelled. Future developments in this systems should be directed toward further increasing the ME coefficient, reducing the detec tion circuit noise, decreasing the resonance frequency and increasing the operation bandwidth.…”

Section: Discussionmentioning

confidence: 99%

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars

Turutin¹,

Vidal²,

Кубасов³

et al. 2018

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

We present an investigation into the magnetic sensing performance of magnetoelectric bilayered metglas / bidomain LiNbO 3 long thin bars operating in a cantilever or free vibrating regime and under quasi-static and low-frequency resonant conditions. Bidomain single crystals of Y+128 o-cut LiNbO 3 were engineered by an improved diffusion annealing technique with a polarization macrodomain structure of the "head-to-head" and "tail-to-tail" type. Long composite bars with lengths of 30, 40 and 45 mm, as well as with and without attached small tip proof masses, were studied. ME coefficients as large as 550 V/cm•Oe, corresponding to a conversion ratio of 27.5 V/Oe, were obtained under resonance conditions at frequencies of the order of 100 Hz in magnetic bias fields as low as 2 Oe. Equivalent magnetic noise spectral densities down to 120 pT/Hz 1/2 at 10 Hz and to 68 pT/Hz 1/2 at a resonance frequency as low as 81 Hz were obtained for the 45 mm long cantilever bar with a tip proof mass of 1.2 g. In the same composite without any added mass the magnetic noise was shown to be as low as 37 pT/Hz 1/2 at a resonance frequency of 244 Hz and 1.2 pT/Hz 1/2 at 1335 Hz in a fixed cantilever and free vibrating regimes, respectively. A simple unidimensional dynamic model predicted the possibility to drop the low-frequency magnetic noise by more than one order of magnitude in case all the extrinsic noise sources are suppressed, especially those related to external vibrations, and the thickness ratio of the magnetic-to-piezoelectric phases is optimized. Thus, we have shown that such systems might find use in simple and sensitive room-temperature low-frequency magnetic sensors, e.g., for biomedical applications.

show abstract

Section: Discussionmentioning

confidence: 99%

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars

Turutin¹,

Vidal²,

Кубасов³

et al. 2018

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…It employs two (or more) magnetic sensors in a differential mode configuration. Such configurations are capable of rejecting common noise sources that are coherently shared between two sensors spatially separated by a baseline or sensor arrays [44].…”

Section: (B) Gradiometermentioning

confidence: 99%

A review on equivalent magnetic noise of magnetoelectric laminate sensors

Wang

Gao

et al. 2014

Phil. Trans. R. Soc. A.

Self Cite

View full text Add to dashboard Cite

Since the turn of the millennium, multi-phase magnetoelectric (ME) composites have been subject to attention and development, and giant ME effects have been found in laminate composites of piezoelectric and magnetostrictive layers. From an application perspective, the practical usefulness of a magnetic sensor is determined not only by the output signal of the sensor in response to an incident magnetic field, but also by the equivalent magnetic noise generated in the absence of such an incident field. Here, a short review of developments in equivalent magnetic noise reduction for ME sensors is presented. This review focuses on internal noise, the analysis of the noise contributions and a summary of noise reduction strategies. Furthermore, external vibration noise is also discussed. The review concludes with an outlook on future possibilities and scientific challenges in the field of ME magnetic sensors.

show abstract

“…In this method, several ME magnetic field sensors are combined in such a way that the signals of individual sensors are subtracted from each other in the total signal. This leads to the fact that the coherent external noise is compensated [ 64 ]. Gradiometer systems successfully combat coherent external noise but do little to combat the internal inconsistent noise of individual sensors.…”

Section: Discussionmentioning

confidence: 99%

“…The second problem of ME sensors is the need to reduce the level of external noise. The use for this purpose of a system of two sensors or a gradiometer [ 64 ] made it possible, as a result of antiphase addition of individual noise signals, to sharply reduce the level of external noise and ensure the operation of the sensor at room temperature without additional shielding.…”

Section: Discussionmentioning

confidence: 99%

Magnetoelectric Magnetic Field Sensors: A Review

Бичурин

Петров

Sokolov

et al. 2021

Sensors

View full text Add to dashboard Cite

One of the new materials that have recently attracted wide attention of researchers are magnetoelectric (ME) composites. Great interest in these materials is due to their properties associated with the transformation of electric polarization/magnetization under the influence of external magnetic/electric fields and the possibility of their use to create new devices. In the proposed review, ME magnetic field sensors based on the widely used structures Terfenol—PZT/PMN-PT, Metglas—PZT/PMN-PT, and Metglas—Lithium niobate, among others, are considered as the first applications of the ME effect in technology. Estimates of the parameters of ME sensors are given, and comparative characteristics of magnetic field sensors are presented. Taking into account the high sensitivity of ME magnetic field sensors, comparable to superconducting quantum interference devices (SQUIDs), we discuss the areas of their application.

show abstract

Effective optimization of magnetic noise for a Metglas/Pb(Zr,Ti)O3 magnetoelectric sensor array in an open environment

Cited by 11 publications

References 14 publications

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars

A review on equivalent magnetic noise of magnetoelectric laminate sensors

Magnetoelectric Magnetic Field Sensors: A Review

Contact Info

Product

Resources

About

Effective optimization of magnetic noise for a Metglas/Pb(Zr,Ti)O3 magnetoelectric sensor array in an open environment

Cited by 11 publications

References 14 publications

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO3long bars

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO3long bars

A review on equivalent magnetic noise of magnetoelectric laminate sensors

Magnetoelectric Magnetic Field Sensors: A Review

Contact Info

Product

Resources

About

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars

Low-frequency magnetic sensing by magnetoelectric metglas/bidomain LiNbO₃long bars