Ultrasonic Thickness Gauge - Advantages and Disadvantages

Advantages and Disadvantages

Ultrasonic Thickness Gauge Advantages:

• Non-destructive technique
• Does not require access to both sides of the sample
• Can be engineered to cope with coatings, linings, etc.
• Good accuracy (0.1 mm and less) can be achieved using standard timing techniques
• Can be easily deployed, does not require laboratory conditions
• EMAT Transducers can be used without liquid couplant

Ultrasonic Thickness Gauge Disadvantages:

• Usually requires calibration for each material
• Requires good contact with the material