Ultrasonic Immersion Technique Path Compensation
Ultrasonic immersion path compensation automatically corrects thickness measurements for coupling fluid on uneven surfaces to avoid measurement errors.
Physical-Chemical Mechanism of Action
Immersion ultrasonic testing path compensation corrects the sound travel time through the coupling fluid on uneven surfaces. This prevents measurement errors because the sound speed differs in air and uneven surfaces cause additional reflections.
Metallurgical Relevance & Welding Risks
Incorrect thickness measurements lead to failures in material selection, welding process, or sampling. This can result in insufficient weld strength or excessive dimensions, posing risks to component integrity.
Workshop Practice & Action Instructions
Use a coupling fluid with a known sound velocity and ensure the surface is flat or correct the measurement via software. For uneven surfaces, an additional correction of 1-2 mm may be required.