MAGNATEST D is the most commonly used system in the world for fully automatic magnetic induction testing of material properties in single coil absolute mode in the automotive sector. The combination of high excitation currents and complex evaluation electronic equipment detects even the smallest structural discrepancies. The test results are documented via test piece statistics, histogram, and test data export, which are displayed clearly on the touch display.

Your advantages at a glance
– Processor-controlled testing system
– Single coil absolute operation, therefore, no comparison coil required
– Optional adapter for two-coil differential operation
– Load-independent induction current, therefore constant induction current intensity and constant magnetic field strength during the testing
– High induction current intensity thus stimulation of higher harmonics and particularly high-test sensitivity to the magnetic characteristics of the test material
– Single frequency or multi-frequency testing, Harmonics analysis
– Simple operator guidance thanks to application-specific function buttons and high resolution TFT color screen
– Standardized interfaces for peripheral equipment (keyboard, mouse, printer, network, etc.)

Harmonic wave evaluation
FOERSTER produces outstanding products for performant harmonic wave evaluations during structure testing. This makes it possible to reduce temperature and batch impacts as well as impacts of the test piece position and geometric component tolerances. The magnetization curve can be divided into carrier and harmonics (multiples of the carrier) using the Fourier transformation. The frequency spectra comprises all uneven frequencies, i.e. f1 (carrier), f3, f5, f7, etc. The evaluation of the harmonics provides additional information on the properties of the test material.

Technical Data
Excitation frequency: 2 Hz to 128 kHz, 17 levels
Throughput: depending on excitation frequency, approx. 10 items at 1 kHz
Test resolution: manual, external, internal, crosshairs
Sorting threshold: circle, ellipse, rectangle (manual areas), box regression
Sorting process testing: group analysis
Stimulation: mono-frequency, multi-frequency

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