Title :
Electric field sensors in electromagnetic sounding
Author :
Wu, Wu Xiao ; Thiel, David V.
Author_Institution :
Div. of Sci. & Technol., Griffith Univ., Brisbane, Qld., Australia
fDate :
1/1/1989 12:00:00 AM
Abstract :
A staked and an insulated dipole antenna were used to monitor transmissions from a distant very-low-frequency transmitter. The field strength recorded from the staked antenna was found to be much larger than that recorded from the insulated antenna. It is shown that this can be adequately described as magnetic field induction. It is postulated that an insulated antenna is a far better electric field probe for surface impedance investigations including audio magnetotelluric (AMT), controlled source audio magnetotelluric (CSAMT), and VLF sounding techniques
Keywords :
geophysical prospecting; geophysical techniques; terrestrial electricity; AMT; CSAMT; EM induction; VLF sounding; audio magnetotelluric; controlled source; electric field sensor; electromagnetic sounding; geoelectric method; insulated dipole antenna; measurement; prospecting technique; staked antenna; surface impedance; very-low-frequency transmitter; Acoustic sensors; Dielectrics and electrical insulation; Dipole antennas; Electromagnetic fields; Magnetic fields; Monitoring; Probes; Surface impedance; Transmitters; Transmitting antennas;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
