From Resonic NDT Systems

Tests were conducted on Copper tubing of various diameters and wall thickness. These samples were tested in standard resonance mode EMAT's (electromagnetic acoustic transducers) configured for aluminum and steel rod. A rotary encoder input was utilized to generate the data plots of resonant frequency versus distance this data was recorded on the ARIS lab unit.

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Nondestructive Testing (NDT) Equipment
Non-destructive testing (NDT) equipment is used to detect, inspect, and measure flaws, bond integrity, and other material conditions without permanently altering or destroying the examined part or product. NDT equipment includes a wide variety of instruments and systems.
Corrosion and Electrochemical Instruments
Corrosion and electrochemical instruments are designed to measure corrosion and electrochemical conditions in plant machinery, field equipment, batteries, fuel cells, colloids, and other solutions or systems. They use a variety of technologies.
Flaw Detectors
Flaw detectors are used to detect or measure defects in raw materials or finished products. This product area includes fault detectors, NDT instruments that are used to find faults in electrical, mechanical, optical, or other systems.
Nondestructive Testing (NDT) Material Testers
Non-destructive testing (NDT) material testers are devices, machines and equipment that are used to determine residual stress, alloy type, hardness, microstructure, elasticity, heat treatment and other material conditions without permanently altering or destroying the material being examined.
Nondestructive Testing (NDT) Probes
Nondestructive testing (NDT) probes and sensors include eddy current, ultrasonic, induction, hall effect and EMAT and other specialized transducers.

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Topics of Interest

Extrusion weld detection: A .565 in. I.D. N:5 Resonance mode transducer was utilized to generate a subsurface ultrasonic resonance in a .440 in. OD aluminum rod. The frequency response is plotted...

Two samples of solid copper rod of approximately .30" diameter were tested in a 3 wavelength (N: 3) resonance mode EMAT (RM-EMAT). Transducer ID was .410" nominal. One of the samples has had a .040"...

Three short samples of 61.1341 mm diameter induction hardened steel were tested utilizing the ARIS (Acoustic Resonance Inspection System) and three different iterations of a toroidal resonance mode...

A number of samples were provided in 4 groups for evaluation of the interlayer bond integrity of stainless steel- tantalum-stainless steel tubing. These samples were examined with two types of RMEMATs...

Samples of acceptable and unacceptable tapered spindles fabricated from 1039M steel were tested to determine the effectiveness of RM-EMAT based detection on the defects generated in the forging...