Calibration of the Electric Field Detector for the CSES-02 satellite

The second China Seismo-Electromagnetic Satellite (CSES-02) willbe equipped with the new Electric Field Detector (EFD-02), to measure the iono-spheric electric field components at a Low Earth Orbit (LEO) over a wide frequency band (DC - 3.5 MHz) and with a high sensitivity (similar to 1 mu V/m). EFD-02 will measure the voltages between different pairs of probes installed at the tips of four booms deployed from the satellite. Compared to the previous similar detectors on boardCSES-01 and DEMETER missions, EFD-02 has a cutting-edge sensitivity that allows to observe more thoroughly the variation in the electric field under the magneticfield conditions encountered in its orbit around the Earth.