Presentation by Dr. Ingo Richter - Max Planck Institute for Solar System Research (MPS)
Survey of the geomagnetic field and the electric field of the atmosphere
Absolute Scalar Magnetometer (ASM)
Vector Field Magnetometer (VFM)
("boom": extension or mechanical arm)
Investigates how the Sun's and Earth's magnetic fields connect and disconnect
key wave and very low frequency magnetic field measurements.
"The Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS)" on this mission - link to dedicated section on instrumentation:
"Magnetic field measurements in space" - Instrumentation starting at third page
"Magnetograms are often produced by exploiting the Zeeman effect (or, in some cases, the Hanle effect)".
"Soon after George Ellery Hale discovered a way to detect magnetism on the sun in 1908, large telescopes were created to make more detailed observations using the Zeeman Splitting Effect.
One of the largest of these telescopes, the Mt. Wilson 150-foot tower telescope, was built in 1912.
The NASA-Marshall Space Flight Center Vector Magnetograph Facility was assembled in 1973 to support the Skylab mission. At this facility, daily magnetograms can be accessed online since 2000.
Meanwhile in space, the NASA/ESA SOHO satellite creates magnetograms of the full sun (...)".
Solar and Heliospheric Observatory (SOHO)
SOHO carries the Michelson Doppler Imager (MDI) which measures velocity and magnetic fields in the photosphere.