Berthold Magnetic Field Indicator
The Berthold Penetrameter is designed to measure magnetisation strength, field direction, penetration depth and the quality of the fluorescent magnetic particles suspended in consumable products during magnetic particle testing.
The Penetrameter consists of a remanence-free shielding ring surrounding an iron cylinder covered by a thin brass plate. The cylinder is divided into four quarters by cuts which simulate artificial flaws in the form of a cross.
Supplied with a certificate of manufacture.