Magnetic field – Page 9 – WindowsTechs.com

Hackaday Prize Entry: Measuring 3D Magnetic Fields [Needs Prize Footer]

Posted on July 17, 2016 by Elliot Williams

Sometimes you have to start out with big goals. Ninth-graders [Finja Schneider] and [Myrijam Stoetzer] are aiming to make a magnetic field scanner that would be helpful in finding large underground metallic objects, like unexploded WWII bombs that pose a real threat whenever a new parking garage is excavated in Germany. But even big goals have to start out somewhere, so they’re gaining experience with the sensors and the math necessary to recreate 3D magnetic flux vector fields on household objects like sawblades and magnetized screwdrivers.

For their science-fair project, [Finja] and [Myrijam] took a mid-80s fischertechnik “toy” 2D scanner …read more

Continue reading Hackaday Prize Entry: Measuring 3D Magnetic Fields [Needs Prize Footer]→

The Nine Space Gadgets NASA’s Juno Orbiter Is Using to Study Jupiter

Posted on July 5, 2016 by Becky Ferreira for Motherboard

Magnetometers, cameras, and spectrographs, oh my! Continue reading The Nine Space Gadgets NASA’s Juno Orbiter Is Using to Study Jupiter→

Hackaday Prize Entry: Visualizing Magnetic Fields

Posted on June 18, 2016 by Brian Benchoff

In 1820, Hans Christian Oersted discovered the needle of a compass would deflect when placed next to a wire carrying an electric current. It took 15 years for the first electric motor to be invented following this observation. Humans are dumb, but perhaps they wouldn’t be so oblivious to the basic facts of our reality if they could see magnetic fields. Or if they just had a 3D printer. For his Hackaday Prize entry, [Ted Yapo] is doing just this: adding a magnetic field scanner to a 3D printer, allowing for the visualization of magnetic fields in three dimensions.