EM 5000

Pen-style Wireless Electromagnetic Ultrasonic High-Temperature Corrosion Detector

Electromagnetic Acoustic Transducer (EMAT), a new technology emerging in the field of non-destructive testing, uses electromagnetic coupling to both generate and detect ultrasonic waves. Compared to conventional ultrasonic testing techniques, EMAT offers several advantages: high precision, no need for couplant, non-contact operation, suitability for high-temperature inspections, and ease of exciting various ultrasonic waveforms. As a result, electromagnetic acoustics is increasingly gaining attention and recognition in industrial applications.

	Probe replacement is quick and easy.
800°C Heat-Resistant Temperature Probe
	Waveforms can be observed directly or using a tablet.

EMAT electromagnetic ultrasonic technology consists of a permanent magnet and a conductor carrying alternating current. As AC energy flows through the non-contact coil, it generates an alternating magnetic field, which induces eddy currents on the surface of the base material. Charged particles moving within this magnetic field experience the Lorentz force, causing them to repeatedly change direction along the surface of the object being inspected. This Lorentz force induces controlled micro-particle displacement vibrations in the eddy current region, ultimately generating ultrasonic waves at the material's surface. The rebounded ultrasonic energy is then directly detected by the non-contact coil—via mechanisms such as magnetostriction—and converted into measurable detection signals.

The EM5000 Electromagnetic Ultrasonic Thickness Gauge can wirelessly connect to tablets, smartphones, or other Android devices. It supports A-scan, B-scan, and C-scan modes.

Simultaneously measure the base material thickness by inputting the known sound velocity of the specific material and compensating in real time with the current temperature to achieve the most accurate reading. Display the waveform either on its own screen or via a wireless tablet device, allowing for indirect assessment of whether defects are present. Quick calibration is achieved using random standard test blocks, eliminating the need for complex calibration procedures.

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