It can detect pinholes in metal coatings (for coatings with a thickness of less than 1mm).
- The goal is to detect defects in the anti-rust and anti-corrosion properties of the coating and lining films without damaging the films.
- Avoiding high frequencies that are prone to thermal destruction, measurements are conducted at low frequencies.
- By reducing power consumption and enabling battery operation, miniaturization and portability are achieved.
- Considering the degradation of the coating, a high-voltage pulse method is adopted to relatively reduce the application time of high voltage.
- To avoid impacts on the human body and damage to the coating, the discharge current is suppressed.
- The structure allows for confirmation of the voltage applied to the coating and voltage adjustment.