نتایج جستجو برای: fluxgate gradiometer survey
تعداد نتایج: 372369 فیلتر نتایج به سال:
Fluxgate magnetometers are, possibly, the simplest and most convenient magnetic flux sensors yet capable, in controlled environments with some well-conceived technical embellishments, to detect fields order of 50nT or less. In practice, they are limited by presence unwanted contaminating signals, these include sensor noise floor as well noise-contamination target signal interest. The Residence ...
A spatiospectral localization method is discussed for processing the global geopotential coefficients from satellite mission data to investigate time-variable gravity. The time-variable mass variation signal usually appears associated with a particular geographical area yielding inherently regional structure, while the dependence of the satellite gravity errors on a geographical region is not s...
The dual technique magnetometer system onboard the Cassini orbiter is described. This instrument consists of vector helium and fluxgate magnetometers with the capability to operate the helium device in a scalar mode. This special mode is used near the planet in order to determine with very high accuracy the interior field of the planet. The orbital mission will lead to a detailed understanding ...
The Japanese Antarctic Research Expedition has conducted geomagnetic observations at Syowa Station, Antarctica, since 1966. Geomagnetic variation data measured with a fluxgate magnetometer are not absolute but are relative to a baseline and show drift. To enhance the importance of the geomagnetic data at Syowa station, therefore, it is necessary to correct the continuous variation data by using...
During the years 2012-2014, the Danish space Center, DtU space, has developed, tested, and implemented new features of the well known 3-axis FGe Fluxgate Magnetometer. Measurements show that the FGe is suitable for the new InteRMAGnet one second standard thanks to its good linearity and stability, even though the noise in the high frequency band is too large. With a good data acquisition system...
In this research, the evolution of piezomagnetic field a low carbon steel under cyclic tensile stress was investigated. The objective to explore correlations between signal measured by fluxgate magnetometer with progressive changes that take place during fatigue tests. Experiments show first hysteresis loop drastically propagation crack. A multiscale magneto-elastic model behavior allows second...
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