[1] The pulse-induction method is based on electromagnetic pulse induction technology to detect rebars.
Rebars that are closer to the probe or of larger size produce a stronger magnetic field.
Advanced signal processing supports not only the localization of rebars but also the determination of the cover and the estimation of the bar diameter.
Advantages of the pulse induction method: Disadvantage of the pulse induction method: Early diagnosis and analysis of seemingly healthy concrete cover and reinforcement status allows pre-emptive corrosion control measures to reduce unwanted risks to structural safety.
[3] Bundesanstalt für Materialforschung und -prüfung (Federal Institute for Materials Research and Testing, Germany) has developed a sensor equipped robotic system to accelerate the collection of several criteria used for diagnostics.