Spectral Induced-Polarization Parameters As Determined Through Time-Domain Measurements

Spectral Induced Polarization Measurements on Unsaturated, Unconsolidated Sediments

Understanding the Spectral Induced Polarization (SIP) response to saturation is required to improve application of this geophysical technique in the vadose zone. SIP measurements (0.11000 Hz) were conducted on three unconsolidated sediments during evaporative drying. Sample grain size distribution was determined from laser particle size diffraction measurements. The dependence of the real and i...

Bayesian inference of the Cole–Cole parameters from time- and frequency-domain induced polarization

The inversion of induced-polarization parameters is important in the characterization of the frequency electrical response of porous rocks. A Bayesian approach is developed to invert these parameters assuming the electrical response is described by a Cole–Cole model in the time or frequency domain. We show that the Bayesian approach provides a better analysis of the uncertainty associated with ...

Measuring time-domain spectral induced polarization in the on-time: decreasing acquisition time and increasing signal-to-noise ratio

Spectral Analysis of Time-Domain Phase Jitter Measurements

A simplified overview of time-domain jitter measurements is presented in this paper. The relationship between the timedomain jitter measurements and the power spectrum of the phase jitter is described using fundamental Fourier properties and basic random variables analysis. This leads to a unifying analysis and the results are in agreement with commonly accepted understanding of jitter accumula...

Para-Hydrogen Induced Polarization at Time Domain NMR Spectrometer

Nuclear Magnetic Resonance (NMR) is a widely used spectroscopic method in a broad range of disciplines. Unfortunately NMR suffers from a low intrinsic sensitivity. The low sensitivity of NMR can be successfully improved by application of hyperpolarization technique called Para-Hydrogen Induced Polarization (PHIP) which was discovered in 1986 [1-3]. Till now, a substantial progress in the method...