The objective of the MFE experiment on Geotail is to measure the magnetic field variation of the magnetotail in the frequency below 50 Hz. The MGF experiment consists of dual three-axis fluxgate magnetometers and a three-axis search coil magnetometer. Triad fluxgate sensors, which utilize a ring core geometry, are installed at the end and middle of a 6 m deployable mast. Three search coils are mounted approximately one-half of the way out on another 6 m boom together with search coils for the VLF wave in the PWI system. The fluxgate magnetometers are of standard design and consist of an amplifier, filter, phase sensitive detector, integrator, and a voltage-current convertor. The fluxgate magnetometers operate in seven dynamic ranges to cover various regions of the Earth's magnetosphere and the solar wind: +/-16 nT, +/-64 nT, +/-256 nT, +/-1024 nT, +/-4096 nT, +/-16384 nT, and +/-65536 nT, and supply 16 vectors/sec. The search coil magnetometer system consists of three sensors, preamplifier, amplifier, filter, multiplexer, and an A/D converter. The search coil magnetometers operate in a frequency range of 0.5 kHz to 1 kHz, and supply 128 vectors/sec. The fluxgate magnetometer operates in both real time and record modes, while the search coil data are used only in real time mode. Principal Investigator: Dr. Tsugunobu Nagai Tokyo Institue of Technology Earth and Planetary Sciences Tokyo 152-8551 Japan Phone: Fax: e-mail: nagai@geo.titech.ac.jp See: http://pwg.gsfc.nasa.gov/geotail_inst.shtml Group: Instrument_Details Entry_ID: MFE Group: Instrument_Identification Instrument_Category: Solar/Space Observing Instruments Instrument_Class: Magnetic Field/Electric Field Instruments Short_Name: MFE Long_Name: Magnetic Field Experiment (Geotail) End_Group Group: Associated_Platforms Short_Name: GEOTAIL End_Group Online_Resource: http://pwg.gsfc.nasa.gov/geotail_inst.shtml#MGF Online_Resource: http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1992-044A&ex=6 Group: Instrument_Logistics Data_Rate: 3.584 kbps Instrument_Start_Date: 1992-07-24 Instrument_Owner: Tokyo Institute of Technology End_Group End_Group
MFE
Magnetic Field/Electric Field Instruments