Barkhausen noise signal analyzers

Rollscan 250
Rollscan 350
Rollscan 320

Feature Rollscan 250 Rollscan 350 Rollscan 320
Measurement channels 2 1 2 (with 8 parallel analyzers up to 16 channels)
Magnetizing voltage range 0-16 Volts 0-16 Volts 0-16 Volts
Magnetizing waveform Sine/Triangle ✔/✔ ✔/✔ ✔/✔
Magnetizing frequency range Sine/Triangle 1-1000 Hz/1-150 Hz 1-1000 Hz/1-150 Hz 1-1000 Hz/1-150 Hz
Analyzing filter range 70-200 kHz 10-70 kHz, 70-200 kHz, 200-450 kHz 70-200 kHz
Magnetizing & frequency sweep N/A Automatic/Visible N/A
Communications Ethernet/USB/RS232 Ethernet/USB Ethernet
Measurement parameter control Manual/Remote Manual/Remote Remote
Oscilloscope display/software -/- ✔/✔ -/✔
Battery option -
MicroScan option - -

Magnetizing Voltage Range: Adjustment range for power output for sensor.
Magnetizing Waveform: Sine for standard measurement and triangle for special purposes
Magnetizing Frequency Range: Sensor performance optimization
Analyzing Filter Range: Penetration depth of signal depends on analyzing frequency range. Lower frequency range means deeper penetration depth
Oscilloscope: For visualizing signal quality