Research Area

Magnetic and Optical Systems

Impedance Measuring Station

Network analyzer HP 4195A with impedance measuring station HP41951A


With the help of the network analyzer and the impedance measuring station, magnetic properties of materials/samples close to the demagnetized state (Rayleigh range) can be determined as a function of frequency. In combination with a thermostat a temperature-dependent characterization is given.

Application examples:

  • Measurement of inductance for H against 0
  • Measurement of the complex initial permeabilities µ' and µ'' of toroidal cores
  • Temperature-dependent measurements

Device configuration:

  • Inductance: 10 pH to 30 mH
  • Quality: 0.1 to 1000
  • Frequency range: 100 kHz to 500 MHz
  • The sample must be dimensioned so that it can be used to prepare a ring core, which can then be wrapped around

Other Measuring Instruments




HP 4195A / HP 41951A

Michael Röder

Magnetic Measurements

Phone: +49 3641 282564