Impedance Electrical

Electrical impedance: The total resistance of an electrical system. How resistance values ​​are measured - impedance: for electrical circuits, for blood vessels, and collectively everything is called the total electrical resistance of the system.

- Impedance in transmission lines and spectral absorption lines (electrical impedance). It is a measure of the dissipating or absorbing ability of a substance and is determined from the determination of its active conductivity at certain frequencies. Divided into resistor, inductance and capacitance. Depends on many physical parameters, including the composition, structure, size and temperature of the substance, and therefore can be used to analyze some parameters. Impedance of electrical systems is the electrical equivalent of thermal capacitance and thermal conductivity of materials. Can measure conductivity of electrodes, implants and metal implants. Can be used to study the effects of scattering on the K-spectrum and calculate the coupling frequency. Impedance measurements are widely used in mechanical engineering to

Electrical impedance is the total resistance (resistance to alternating electric current) of the electrical circuit of parts of the body. Historically, impedance as a complex physical quantity was introduced to describe the properties of oscillatory systems: mechanical, electrical and magnetic. Finding complex variables made it possible to fully describe such systems - their mechanical and electrical parts. Impedance is a complex quantity of the form Z=R+iωL or Z=G+iθ, where Z is impedance, R is active resistance, L is inductance, ω is frequency, Г is conductivity, θ is phase.

Measuring the electrical impedance of individual areas of body tissue is important not only in general medicine, but also in