MGF

Fluxgate Magnetometer (MGF)

Measurement Principle

The Fluxgate Magnetometer onboard Mio (MGF) measures the magnetic field to study various magnetospheric processes (such as magnetic reconnection, field-aligned currents etc.) in Mercury’s magnetosphere, physics of bowshock and magnetosheath, also magnetic field properties in the inner-heliosphere. It consists of two tir-axial fluxgate magnetometers and power supply units. The magnetometer is able to observe the magnetic field with a vector rate of maximum 128 Hz.

Members

Principal Investigator
Wolfgang Baumjohann (IWF, Austria)
Co-PI
Ayako Matsuoka (Kyoto University, Japan)
Support Scientists
Daniel Schmid (IWF, Austria), Yasuhito Narita (IWF, Austria)

Instrument Specifications

Mass MGF-O: 288 g
MGF-I: 414 g
Total: 766 g
Power MGF-O: 1.65W
MGF-I: 2.17 W
Total: 4.43 W
Dynamic range ± 2048 nT
Resolution 3.9 pT at 20-bit resolution
Vector rate max. 128 Hz
max. 128 Hz
Frequency range From DC to about 60 Hz in wave analyses
Noise level below 10 pT/Hz1/2 at 1 Hz
below 40 pT root-mean-square in the range 0.1–10 Hz