The signals from the two antennas generated a magnetic field in the space between the coils, which was picked up by a rotating solenoid, the " search coil ".
12.
The maximum signal was generated when the search coil was aligned with the magnetic field from the field coils, which was at the angle of the signal in relation to the antennas.
13.
PWE consists of a search coil ( PWE-MSC ) located at the end of another 5 m exteded mast, four 15 m wire antennae ( PWE-WPT ), and associated electronics unit ( PWE-E ).
14.
Unlike the beat frequency oscillator or the induction balance machines which both used a uniform alternating current at a low frequency, the pulse induction machine simply magnetized the ground with a relatively powerful, momentary current through a search coil.
15.
Explorer 6 ( 1959 ) used a search coil magnetometer to measure the gross magnetic field of the Earth and vector fluxgate ., however because of induced magnetism is the space craft the fluxgate sensor became saturated and did not send data.
16.
The scientific instruments consisted of an ion chamber and Geiger-M�ller tube to measure total radiation flux, a proportional radiation counter telescope to measure high energy radiation, a scintillation counter to monitor low-energy radiation, a VLF receiver for natural radio waves, a transponder to study electron density, and part of the flux-gate and search coil magnetometers mounted on the instrument platform.
