Results 51 to 60 of about 26,270 (270)
Sparse Sensing and Machine Learning for Rapid Calibration of Defect Detection with rf Atomic Magnetometers. [PDF]
Sensors (Basel)Munko MJ +6 more
europepmc +3 more sources
Multi-sensor magnetoencephalography with atomic magnetometers [PDF]
Physics in Medicine and Biology, 2013 The authors have detected magnetic fields from the human brain with two independent, simultaneously operating rubidium spin-exchange-relaxation-free magnetometers. Evoked responses from auditory stimulation were recorded from multiple subjects with two multi-channel magnetometers located on opposite sides of the head.
Cort N, Johnson +2 more
openaire +2 more sources
A New Method for Reduction of Atomic Magnetometer Noise Based on Multigene Genetic Programming
IEEE Access, 2019 An ultra-high precision magnetic field measurement is of great scientific and economic significance. An atomic magnetometer that operates in a spin-exchange relaxation-free (SERF) regime has superior sensitivity and, thus, is of great significance for ...
Wei Quan, Feng Liu, Wenfeng Fan
doaj +1 more source
Detection of radio frequency magnetic fields using nonlinear magneto-optical rotation [PDF]
, 2006 We describe a room-temperature alkali-metal atomic magnetometer for detection of small, high frequency magnetic fields. The magnetometer operates by detecting optical rotation due to the precession of an aligned ground state in the presence of a small ...
D. Budker +9 more
core +2 more sources
Parametric modulation of an atomic magnetometer [PDF]
Applied Physics Letters, 2006 The authors report on a rubidium atomic magnetometer designed for use in a shielded environment. Operating in the spin-exchange relaxation-free regime, the magnetometer utilizes parametric modulation of the z-magnetic field to suppress noise associated with airflow through the oven and to simultaneously detect x- and y-field components, using a single ...
Zhimin, Li +2 more
openaire +2 more sources
AIP Advances, 2023 Although vector potentials are more intrinsic physical quantities than magnetic and electric fields, measuring them macroscopically is difficult. A double-nested Helmholtz-type vector potential coil, consisting of an elongated solenoid coil wound around ...
Y. Shoji, M. Daibo
doaj +1 more source
Analysis and Correction of the Crosstalk Effect in a Three-Axis SERF Atomic Magnetometer
Photonics, 2022 Three-axis atomic magnetometers have an excellent advantage for determining the complete vector information of a magnetic field to be measured. However, the crosstalk effect, which leads to an error output on one axis owing to a magnetic field on the ...
Yeguang Yan +7 more
doaj +1 more source
Different sensitivities of two optical magnetometers realized in the same experimental arrangement [PDF]
, 2019 In this article, operation of optical magnetometers detecting static (DC) and oscillating (AC) magnetic fields is studied and comparison of the devices is performed. To facilitate the comparison, the analysis is carried out in the same experimental setup,
Popiołek, Kacper +2 more
core +2 more sources
All-Optical Parametric-Resonance Magnetometer Based on 4He Atomic Alignment
Sensors, 2022 Parametric-resonance magnetometer is a high-sensitivity quantum sensor characterized by applying the non-resonant radio-frequency (RF) fields to the atomic ensemble. The RF fields lead to crosstalk in the multi-sensor design, thus disturbing the magnetic-
Bowen Wang +4 more
doaj +1 more source
Detection of NMR signals with a radio-frequency atomic magnetometer
, 2006 We demonstrate detection of proton NMR signals with a radio frequency atomic magnetometer tuned to the NMR frequency of 62 kHz. High-frequency operation of the atomic magnetometer makes it relatively insensitive to ambient magnetic field noise. We obtain
Appelt +30 more
core +1 more source