MicroScan is a software that enables signal analysis of Barkhausen noise data.

microscan interface

MicroScan provides a wide range of user definable measurement and analysis parameters, allowing the system to adjust to test conditions:

  • Evaluate Barkhausen noise signal data using several functions and parameters. This can be used e.g. for residual stress and microstructure analysis.
  • Gain deeper information about the phenomena.
  • Analyze different parameters after the measurement.
  • Compare multiple data sets at the same time. You have versatile options available for handling the data.

MicroScan features

Values for Avg, Pos – and Pos +

Most of the reported values are shown for the negative and positive of magnetization half cycle as well as the average of the entire cycle.

  • Avg” values are those from an entire magnetizing cycle
  • Pos –” values from the negative slope of the magnetizing cycle
  • Pos +” values are from the positive slope of the magnetizing cycle.

Measurement view

  • Display the recorded magnetizing current and Barkhausen noise signal waveform
  • Record length is set by selecting the amount of zero crossings with the selected frequency.
  • Data can be zoomed and panned.
  • Hardware and software filters are implemented into the shown data.


  • Most used parameter in Barkhausen noise signal analysis.
  • Positive and negative RMS can be used to detect e.g., if there is residual magnetism in the sample.

Peak value

  • Searches the highest and lowest recorded peak value from recorded data.
  • Calculates the average of these peaks.

Peak position

  • Barkhausen noise burst peak x-axis position compared to magnetizing current waveform zero-crossing.


  • Barkhausen noise burst full width at half maximum i.e. wideness of the burst.


  • Frequency domain view of the recorded time domain raw data.
  • Data can be post-processed with selected software filter ranges.

Integral of the bursts, coercivity, remanence

  • Unitless representation of the hysteresis loop.
  • A magnetic hysteresis loop behavior can be plotted with the integral of BN burst on Y-axis and using Magnetizing current waveform as X-axis.
  • Coercivity is the average x-value, where hysteresis curve intercepts the x-axis.
  • Remanence is the average y-value, where hysteresis loop intercepts the y-axis.

Pulse height distribution

  • Each signal magnitude point is placed on x-axis and then counted on y-axis.

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