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InstrumentOperationalOpen for Testing / Collaboration
Electromagnetic NDT Acquisition System
Complete data acquisition setup for MBN, MIP and MNP measurements: function generator, AC power amplifier, preamplifier (x100), low-pass / band-pass filters, Hall sensor DC supply and NI-DAQmx acquisition.
Manufacturer
NI
Model
NI-DAQmx + BNC
Location
LEEC Laboratory
Technical Specifications
- MBN, MIP, MNP equivalent sensing methods, BNC connector
Usage & Applications
- Data acquisition for Magnetic Barkhausen Noise (MBN), Magnetic Incremental Permeability (MIP) and Magnetic Needle Probe (MNP) measurements.
- Synchronized excitation (function generator + AC power amplifier) and acquisition (NI-DAQmx via BNC).
- Processing of Barkhausen noise signals, MBNenergy envelopes and hysteresis cycles.
- Structural health monitoring and material integrity evaluation campaigns.
Typical workflow:
1. Configure function generator excitation (H-field waveform). 2. Set preamplifier gain (x100) and filter (band-pass 1-90 kHz for MBN, low-pass 20 Hz for MIP). 3. Acquire signals through NI-DAQmx with BNC connector. 4. Post-process with signal analysis workstation (DeWeSoft) and export indicators.