electric impedance

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electric impedance

an opposition to electron flow in a conducting material.
References in periodicals archive ?
This electrical impedance tomography (EIT) provides continuous dynamic information that may be of use in assessing such questions as tidal recruitment.
The team used an entirely new imaging method called 'functional electrical impedance tomography by evoked response' (fEITER *), which aids high speed imaging and monitoring of electrical activity deep within the brain and helps researchers measure brain function.
Electrical impedance in assessing human body composition: the BIA method.
The BIA is based on the relation between the volume of a conductor and its electrical impedance, although measures of impedance have been used empirically in determining associations with different body compartments such as fat and the fat free mass.
Electrical impedance tomography; methods, history, and applications.
The type of corrosion protection and the galvanic potential can easily be illustrated by electrical impedance testing.
To facilitate studies of clopidogrel resistance, we examined electrical impedance aggregometry with the aim to develop a simple assay suitable for small laboratories or for point-of-care use.
For example, eddy current measures electrical impedance, which may change in the presence of a defect, but impedance itself has no relevance to the casting's function.
The technology measures electrical impedance differences on the surface of the skin and constructs a two-dimensional model of the nerves underneath.
The machines measured texture, through compression tests checking elasticity and firmness; odour, with electronic noses detecting volatile compounds linked to decomposition; electrical impedance, also indicating spoilage; and optical analyses of fish surface colour and appearance.
Other chapters consider research on potential new technologies, including surface penetrating radar, microwave reflectance, nuclear magnetic resonance, electrical impedance and ultrasound.
Gloucester, MA), which measures the skin surface electrical impedance as the ratio of the current to the potential on an electrically charged isolated conductor.

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