netPICOmag: from Design to Network Implementation

Details netPICOmag: from Design to Network Implementation netPICOmag: from Design to Network Implementation

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsm23a..06s&link_type=abstract

American Geophysical Union, Spring Meeting 2009, abstract #SM23A-06

Physics

0800 Education, 0845 Instructional Tools, 2700 Magnetospheric Physics (6939), 2788 Magnetic Storms And Substorms (7954), 2794 Instruments And Techniques

Scientific paper

netPICOmag is the successful conclusion of a design effort involving networking based on Rabbit microcontrollers, PIC microcontrollers, and pulsed magnetometer sensors. GPS timing allows both timestamping of data and the precision counting of the number of pulses produced by the sensor heads in one second. Power over Ethernet, use of DHCP, and broadcast of UDP packets mean a very simple local installation, with one wire leading to a relatively small integrated sensor package which is vertically placed in the ground. Although we continue to make improvements, including through investigating new sensor types, we regard the design as mature and well tested. Here we focus on the need for yet denser magnetometer networks, technological applications which become practical using sensitive yet inexpensive magnetometers, and deployment methods for large numbers of sensors. With careful calibration, netPICOmags overlap with research grade magnetometers. Without it, they still sensitively detect magnetic variations and can be used for an education or outreach program. Due to their low cost, such an application allows many students to be directly involved in gathering data that can be very relevant to them personally when they witness auroras.

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