UT - Equipment Linearity Checks

In this video, we explain how to perform linearity checks on Ultrasonic Testing (UT) equipment to ensure accurate and reliable thickness and flaw detection measurements. This is a key calibration procedure required in ASME, ISO 16810, ISO 22232, ASTM E317/E2491, and other NDT standards. 👉 What You Will Learn: What linearity means in Ultrasonic Testing Horizontal and vertical linearity: what they are and why they matter How to verify amplitude linearity and distance (time-base) linearity Equipment and calibration blocks used (IIW/V1 block, step wedge, reference blocks) How to interpret results and acceptable tolerances Common errors and troubleshooting tips 🎯 Why This Is Important: Incorrect linearity affects flaw sizing and thickness measurements, leading to wrong inspection decisions. Performing regular linearity checks ensures your UT instrument is accurate, calibrated, reliable, and compliant with code requirements. 👍 If you found this helpful, LIKE the video. 💬 Drop your questions in the comments. ✅ SUBSCRIBE for more NDT training, tutorials, and inspection guides. 🔔 Turn on notifications so you don’t miss future uploads! #UltrasonicTesting #UT #NDTTraining #LinearityCheck #Calibration #ASNT #PCN #ISO9712 #WeldingInspection #AssetIntegrity #TopscanInspections