ETGmini-EX3

Pen-Type Electromagnetic Ultrasonic and Eddy Current Combined Detector – Anti-Explosion Model

Suitable for plates, bars, tubes, austenitic stainless steel, high-temperature pipelines, and the detection of wall thickness and coatings in pressure vessels.

Product Overview

The ETGmini-EX3 Pen-Type Electromagnetic Acoustic and Eddy Current Combined Detector is a non-contact thickness measurement instrument that requires no acoustic coupling agent, enabling precise measurements of both the base material thickness and surface coating thickness in metals or magnetically conductive materials.

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

Standard equipment includes a variety of calibration test blocks.

The aircraft body features a brand-new, redesigned UI experience.

Multiple probe configurations

Standard-equipped wireless communication portable tablet and wristwatch

High-Temperature Probe for Large-Scale Applications

Explosion-proof terminal

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—primarily through magnetostrictive effects—yielding measurable detection characteristics.

Applied to tank crawling platform usage scenarios	Dual-gate mode thickness measurement / Tablet allows real-time parameter adjustment

• Designed for precise measurement of base material and coating thickness, with options for ambient/high-temperature probe models.
• The EMAT electromagnetic ultrasonic probe is suitable for various thickness measurement applications, requiring no coupling agent and enabling non-contact measurements.
• By inputting the known sound velocity of a specific material along with real-time temperature, the most accurate value is obtained through computational compensation.
• Indirectly determine the presence of defects by displaying waveforms through the device.
• Ergonomic grip design with anti-drop feature
• EX explosion-proof certification, ensuring greater safety and reliability

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