Metal Magnetic Memory Testing - Stress Concentration EMS-2003C

EMS-2003C, a smart metal magnetic memory/eddy current testing/remote field testing instrument, is a new generation non-destructive testing (NDT) instrument with advanced microelectronic, computer, magnetic memory, digital eddy current testing and remote field testing techniques. Experiment proves that under the action of the alternative loading, the normalization phenomenon of the magnetic domain occurs at the places containing defects and inclusions in in-service ferromagnetic components, and leakage magnetic field arises on it. At the area where there has defects or internal stress concentration, the metal magnetic conductivity value is the minimum and the tangent component value of its magnetic field is the maximum, and therefore the sign of the normal component is changed and its value is zero. The stress concentration areas can be located by detecting the normal component of leakage magnetic field on the surface. In this way, whether the work piece has defects or not can be indirectly determined.

Inspection settings for different applications can be stored in files and simply called up when needed. Real-time multi-frequency eddy current technology makes the inspection efficiently.

Defect inspection, conductivity measurement and coating thickness measurement are all included in this instrument. The all-in-one design makes the small body with strong function.

Widely Used For

•  Early diagnostic for component fatigue damage by detecting stress concentration.

•  In-service, on-line, off-line inspection of seamless and welded pipes.

•  Inspect ferrous and ferrous heat exchanger tubes, boiler tubes and small pipelines

•  Well used for automatic testing of various components and parts, such as blade, wheel hub, gear, bolt hole, auto part, aircraft components etc.