Loading AI tools
From Wikipedia, the free encyclopedia
Spectral induced polarization (SIP), or complex resistivity (CR) and also complex conductivity (CC), is a geophysical survey technique and an extension of the induced polarization (IP) method, being itself an extension of measuring the Earth's resistance at a single frequency or under direct current (DC) (a technique commonly known by the name resistivity).[1] SIP measures the frequency-dependent (i.e. spectral) complex impedance, equivalent to the amount of resistance and phase shift between electric current and voltage. The usual frequency range for alternating current (AC) applied during SIP surveys is tens of kHz to MHz. As with other geophysical methods, SIP aims to distinguish material properties of the subsurface, such as salinity and saturation.
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.