Conductivity tomography at two frequencies


Autoria(s): Cao, J. X.; He, Z. H.; Zhu, J. S.; Fullagar, P. K.
Data(s)

01/01/2003

Resumo

We present a new approach for crosshole radio tomography. Conductivity images of the investigated area are reconstructed from the ratio of the electric field intensities measured at two similar frequencies. The method largely avoids assumptions about the radiation pattern and in-situ intensity of the transmitting antenna, which introduce errors in conventional single-frequency crosshole electromagnetic-absorption tomography. Application of the method to field data achieved an improvement in resolution of anomalies over traditional single-frequency absorption tomography. The dual-frequency method is not a universal approach; it is suitable for moderately conductive media (>0.01 S/m) over the approximate frequency range 1-100 MHz.

Identificador

http://espace.library.uq.edu.au/view/UQ:67534/UQ67534_OA.pdf

http://espace.library.uq.edu.au/view/UQ:67534

Idioma(s)

eng

Publicador

Society of Exploration Geophysicists

Palavras-Chave #Geochemistry & Geophysics
Tipo

Journal Article