Magnetic impedance

Magnetic impedance
Magnetic Circuits

Conventional Magnetic Circuits

Phasor Magnetic Circuits

Related Concepts

Gyrator-capacitor model variables
This box: view · talk · edit

Magnetic impedance (SI Unit: -Ω−1) is the ratio of a sinusoidal magnetic tension Nm to a sinusoidal magnetic current IMm in a gyrator-capacitor model. Analogous to electrical impedance, magnetic impedance is likewise a complex variable.

z_M = \frac{N}{I_M} = \frac{N_m}{I_{Mm}}

Magnetic impedance is also called the full magnetic resistance. It is derived from:

rM = zMcos ϕ, the effective magnetic resistance (real)
xM = zMsin ϕ, the reactive magnetic resistance (imaginary)

The phase angle ϕ of the magnetic impedance is equal to:

\phi = \arctan {\frac{x_M}{r_M}}

References

  • Pohl R. W. ELEKTRIZITÄTSLEHRE. – Berlin-Gottingen-Heidelberg: SPRINGER-VERLAG, 1960.
  • Popov V. P. The Principles of Theory of Circuits. – M.: Higher School, 1985, 496 p. (In Russian).
  • Küpfmüller K. Einführung in die theoretische Elektrotechnik, Springer-Verlag, 1959.

Wikimedia Foundation. 2010.

См. также в других словарях:

  • Magnetic complex impedance — is the complex value, which is equal to the relation of the complex effective or amplitude value of a sinusoidal magnetic tension on the passive magnetic circuit or its element and accordingly the complex effective or amplitude value of a… …   Wikipedia

  • Magnetic effective resistance — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ Related Concepts Magnetic permeabili …   Wikipedia

  • Magnetic circuit — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ …   Wikipedia

  • Magnetic inductance — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ …   Wikipedia

  • Magnetic complex reluctance — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ …   Wikipedia

  • Magnetic capacitivity — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ …   Wikipedia

  • Magnetic capacitance — Magnetic Circuits Conventional Magnetic Circuits Magnetomotive force Magnetic flux Φ Magnetic reluctance Phasor Magnetic Circuits Complex reluctance Zμ …   Wikipedia

  • Magnetic reactance — is the parameter of a passive magnetic circuit or its element, which is equal to the square root of the difference of squares of the full and effective magnetic resistance for a magnetic current, taken with the sign plus, if the magnetic current… …   Wikipedia

  • Magnetic flux — This article is about magnetic flux. For the magnetic field B (magnetic flux per area), see magnetic flux density. For the magnetic field H , see H field. Electromagnetism …   Wikipedia

  • Magnetic resonance angiography — Intervention Time of flight MRA showing the circle of Willis in the brain. Note the venetian blinds artifact visible as the multiple pseudo stenosis on both the left and right middle cerebral artery …   Wikipedia


Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»