Statistics – Applications
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm21b0544c&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM21B-0544
Statistics
Applications
2794 Instruments And Techniques
Scientific paper
Commercial pulse-counting fluxgate magnetometer heads offer promise for low-cost magnetic monitoring. Having an entirely digital output consisting of pulses in the tens of kHz, they are well suited to use with microcontrollers. In turn the magnetic data storage and transmission requirements are well handled by personal computers (PCs), to which microcontrollers are easily interfaced. A further relevant technology is that of Global Positioning, which gives a precision time base to be used both for pulse counting and for absolute timing of the measurements. All of these technologies can be integrated to produce a magnetometer with a cost of several hundred dollars. Since the PC required is also not expensive, a magnetometer deployable in large quantities for education or research is possible. Here we assess the quality of magnetic data acquired by sample instruments. We find that resolutions of about 10 nT are attained by thermally insulated devices without active thermal control. This surpasses by a factor of about 10 that of Hall effect sensors and is suitable for applications such as monitoring currents in pipelines. To attain a threshold of 1 nT with 1 second sampling, active thermal control is needed. With the current family of commercial sensors this threshold will be difficult to surpass since an error of one pulse per second corresponds to roughly one nT at current device frequencies. These sensors are thus most suited to studies of morphology of auroral currents, where availability of a large number of stations of limited resolution would enhance the ability to do data inversion.
Connors Martin
Foote Marc
Ponto J.
No associations
LandOfFree
Assessment of Pulse Counting Magnetometer Technology for Solar-Terrestrial Environment Monitoring does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Assessment of Pulse Counting Magnetometer Technology for Solar-Terrestrial Environment Monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assessment of Pulse Counting Magnetometer Technology for Solar-Terrestrial Environment Monitoring will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1438364