Hand-Held Magnetic Field Meter Based on Colossal Magnetoresistance-B-Scalar Sensor

Self Cite

In this paper, we investigated the behavior of a type II superconducting armature when accelerated by a pulsed magnetic field generated by a single-stage pancake coil. While conducting this investigation, we performed a numerical finite element simulation and an experimental study of the magnetic field dynamics at the edge of the pancake coil when the payload was a superconducting disc made from YBa2Cu3O7−x, cooled down to 77 K. The magnetic field measurements were performed using a CMR-B-scalar sensor, which was able to measure the absolute magnitude of the magnetic field and was specifically manufactured in order to increase the sensor’s sensitivity up to 500 mT. It was obtained that type II superconducting armatures can outperform normal metals when the launch conditions are tailored to their electromagnetic properties.

Section: Methodsmentioning

confidence: 99%

The Application of a CMR-B-Scalar Sensor for the Investigation of the Electromagnetic Acceleration of Type II Superconductors

Vertelis

Balevičius

Stankevič

et al. 2021

Self Cite

Section: Figurementioning

confidence: 99%

Engineering of Advanced Materials for High Magnetic Field Sensing: A Review

Žurauskienė

2023

Advanced scientific and industrial equipment requires magnetic field sensors with decreased dimensions while keeping high sensitivity in a wide range of magnetic fields and temperatures. However, there is a lack of commercial sensors for measurements of high magnetic fields, from ∼1 T up to megagauss. Therefore, the search for advanced materials and the engineering of nanostructures exhibiting extraordinary properties or new phenomena for high magnetic field sensing applications is of great importance. The main focus of this review is the investigation of thin films, nanostructures and two-dimensional (2D) materials exhibiting non-saturating magnetoresistance up to high magnetic fields. Results of the review showed how tuning of the nanostructure and chemical composition of thin polycrystalline ferromagnetic oxide films (manganites) can result in a remarkable colossal magnetoresistance up to megagauss. Moreover, by introducing some structural disorder in different classes of materials, such as non-stoichiometric silver chalcogenides, narrow band gap semiconductors, and 2D materials such as graphene and transition metal dichalcogenides, the possibility to increase the linear magnetoresistive response range up to very strong magnetic fields (50 T and more) and over a large range of temperatures was demonstrated. Approaches for the tailoring of the magnetoresistive properties of these materials and nanostructures for high magnetic field sensor applications were discussed and future perspectives were outlined.

“…Chip-scale electronic devices (AMR/GMR, MEMS, etc. [ 69 , 70 , 71 , 72 , 185 , 186 , 187 , 188 , 189 , 190 ]) are appreciably smaller and typically exhibit reduced sensitivity. Notably, superconducting magnetometers (SQUIDs [ 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 ]) and devices with optical readout (optomechanical [ 20 , 131 , 144 , 145 , 149 ], NV diamond [ 19 , 132 , 169 , 170 , 171 , 172 , 173 , 174 , 175 ], atomic vapor cell [ 130 , 133 , 134 , 135 , 136 , 137 , 191 ], and SERF [ 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 ]) are almost universally more sensitive than their conventional/electronic counterparts of comparable sensor size (we have displayed atomic vapor cell and SERF separately, despite their underlying similarities, because of their markedly different SWaP, dynamic range, and control requirements).…”

Section: Brief Summarymentioning

confidence: 99%

“… Sensitivities for available and emerging magnetometers. The colored regions indicate typical parameter regimes for each category of device, with icons showing representative examples from the scientific literature (heritage [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 36 , 38 , 62 , 63 ]; chip-scale electronic [ 69 , 70 , 71 , 72 , 185 , 186 , 187 , 188 , 189 , 190 ]; optomechanical [ 20 , 131 , 144 , 145 , 149 ]; nitrogen–vacancy [ 19 , 132 , 169 , 170 , 171 , 172 , 173 , 174 , 175 ]; atomic vapor cell [ 130 , 133 , 134 , 135 , 136 , 137 , 191 ]; SERF [ 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , …”

Section: Figurementioning

confidence: 99%

Precision Magnetometers for Aerospace Applications: A Review

Bennett

Vyhnalek

Greenall

et al. 2021

Aerospace technologies are crucial for modern civilization; space-based infrastructure underpins weather forecasting, communications, terrestrial navigation and logistics, planetary observations, solar monitoring, and other indispensable capabilities. Extraplanetary exploration—including orbital surveys and (more recently) roving, flying, or submersible unmanned vehicles—is also a key scientific and technological frontier, believed by many to be paramount to the long-term survival and prosperity of humanity. All of these aerospace applications require reliable control of the craft and the ability to record high-precision measurements of physical quantities. Magnetometers deliver on both of these aspects and have been vital to the success of numerous missions. In this review paper, we provide an introduction to the relevant instruments and their applications. We consider past and present magnetometers, their proven aerospace applications, and emerging uses. We then look to the future, reviewing recent progress in magnetometer technology. We particularly focus on magnetometers that use optical readout, including atomic magnetometers, magnetometers based on quantum defects in diamond, and optomechanical magnetometers. These optical magnetometers offer a combination of field sensitivity, size, weight, and power consumption that allows them to reach performance regimes that are inaccessible with existing techniques. This promises to enable new applications in areas ranging from unmanned vehicles to navigation and exploration.