Results 11 to 20 of about 6,250 (188)

CalMagNet – an array of search coil magnetometers monitoring ultra low frequency activity in California [PDF]

Natural Hazards and Earth System Sciences, 2008
The California Magnetometer Network (CalMagNet) consists of sixty-eight triaxial search-coil magnetometer systems measuring Ultra Low Frequency (ULF), 0.001–16 Hz, magnetic field fluctuations in California. CalMagNet provides data for comprehensive
C. Dunson, J. Doering, T. Bleier, J. Bortnik, J. Cutler   +4 more
doaj   +5 more sources

First Results of the THEMIS Search Coil Magnetometers [PDF]

Space Science Reviews, 2008
We present the first data from the THEMIS Search Coil Magnetometers (SCM), taken between March and June 2007 while the THEMIS constellation apogee moved from the duskside toward the dawnside. Data reduction, especially the SCM calibration method and spurious noise reduction process, is described.
Le Contel, O., Roux, A., Robert, P., Coillot, C., Bouabdellah, Abdel, de La Porte, B., Alison, D., Ruocco, Sébastien, Angelopoulos, V., Bromund, K., Chaston, C.C., Cully, C., Auster, H.U., Glassmeier, K.H., Baumjohann, W., Carlson, C.W., Mcfadden, J.P., Larson, D.   +17 more
openaire   +2 more sources

Pulsed Electromagnetic Fields: A Novel Attractive Therapeutic Opportunity for Neuroprotection After Acute Cerebral Ischemia

Neuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Acute cerebral ischemia is characterized by several pathological processes evolving during time, which contribute to the final tissue damage. Secondary processes, such as prolonged inflammatory response, impaired mitochondrial function and oxidative stress, are responsible for the progression of brain injury to the peri‐infarct area,
Fioravante Capone, Simona Salati, Fabrizio Vincenzi, Micaela Liberti, Giorgio Aicardi, Francesca Apollonio, Katia Varani, Ruggero Cadossi, Vincenzo Di Lazzaro   +8 more
wiley   +1 more source

A calibration facility for search coil magnetometers [PDF]

Measurement Science and Technology, 2002
A calibration facility for search coil magnetometers (SCMs) has been built at Niemegk Geomagnetic Observatory, GeoForschungsZentrum Potsdam. I describe here the commissioning of this facility. The usable frequency range of 10 mHz-100 kHz enables calibration of all standard types of SCM.
openaire   +4 more sources

Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg (L=15) [PDF]

Annales Geophysicae, 2008
The signature of the ionospheric Alfvén resonator (IAR), so called spectral resonant structures (SRS) in the spectra of the electromagnetic noise in the range of 0.1–10 Hz is rather frequently observed with the search coil magnetometer at observatory ...
N. V. Semenova, A. G. Yahnin
doaj   +1 more source

A Low-cost Electromagnetic Docking Guidance System for Micro Autonomous Underwater Vehicles

Sensors, 2019
As important observational platforms for the Smart Ocean concept, autonomous underwater vehicles (AUVs) that perform long-term observation in fleets are beneficial because they provide large-scale sampling data with a sufficient spatiotemporal resolution.
Shilin Peng, Jingbiao Liu, Junhao Wu, Chong Li, Benkun Liu, Wenyu Cai, Haibin Yu   +6 more
doaj   +1 more source

Development of chopper-stabilized ASIC preamplifier for improving noise equivalent magnetic induction of search coil magnetometer probing space plasma waves

Earth, Planets and Space, 2023
Space-based search coil (SC) magnetometers connected to preamplifiers have been used to investigate magnetic field vectors of plasma waves from 100 mHz to 10 kHz for understanding magnetospheric dynamics.
Mitsunori Ozaki, Yuya Tokunaga, Hiroki Koji, Satoshi Yagitani   +3 more
doaj   +1 more source

Sub-picotesla widely tunable atomic magnetometer operating at room-temperature in unshielded environments [PDF]

, 2018
We report on a single-channel rubidium radio-frequency atomic magnetometer operating in un-shielded environments and near room temperature with a measured sensitivity of 130 fT/\sqrt{Hz}.
Deans, Cameron, Marmugi, Luca, Renzoni, Ferruccio   +2 more
core   +2 more sources

Optimized merging of search coil and fluxgate data for MMS [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2016
The Magnetospheric Multiscale mission (MMS) targets the characterization of fine-scale current structures in the Earth's tail and magnetopause. The high speed of these structures, when traversing one of the MMS spacecraft, creates magnetic field ...
D. Fischer, W. Magnes, C. Hagen, I. Dors, M. W. Chutter, J. Needell, R. B. Torbert, O. Le Contel, R. J. Strangeway, G. Kubin, A. Valavanoglou, F. Plaschke, R. Nakamura, L. Mirioni, C. T. Russell, H. K. Leinweber, K. R. Bromund, G. Le, L. Kepko, B. J. Anderson, J. A. Slavin, W. Baumjohann   +21 more
doaj   +1 more source

Noise characterization of an atomic magnetometer at sub-millihertz frequencies [PDF]

, 2015
Noise measurements have been carried out in the LISA bandwidth (0.1 mHz to 100 mHz) to characterize an all-optical atomic magnetometer based on nonlinear magneto-optical rotation.
Budker, D., Mateos, I., Patton, B., Ramos-Castro, J., Wurm, D., Zhivun, E.   +5 more
core   +3 more sources