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dipole
English

EspaĆ±ol
1. n. [Geophysics]
A pair of opposite (and equal) electrical charges. The strength of the dipole is a vector quantity whose direction points from the positive to the negative charge and whose magnitude is the product of the absolute value of the charge times the separation. A point dipole is an idealized mathematical representation of a dipole in which the separation of the charges goes to zero while their charge increases so that the product (dipole strength) remains constant.
2. n. [Geophysics]
Two poles of opposite
polarity
that can generate a field, such as an electric or magnetic field or a dipole
source
and dipole
receiver
used in
sonic
logging
for excitation and detection of
shear
waves.
See:
Swave
,
shear wave
3. n. [Geophysics]
A small antenna used in electromagnetic surveying that can be represented mathematically as a dipole.
See:
electromagnetic method