1. Theory & Principle of Non-contact MTM.
2. Benefits of Non-contact MTM.
3. What is Aqua MTM
4. Aqua MTM Goal and Objective
5. Aqua MTM Specification
6. Aqua MTM limitation
7. Sample of Final Report
8. Project Reference
9. PETRONAS Experience
10. CHEVRON Experience
PRINCIPLE THEORY OF MTM
Local stresses (either from physical defect or non physical) will cause changes in magnetic field strength.
Measurement of magnetic field strength to evaluate the local stresses degree of danger.
Assessment of Stress Deformed State base on Magnetoelastic effect (Villary effect)
Villary Effect - The Higher the mechanical stress, The Higher the magnetic field intensity.
PRIMARY OBJECTIVE OF NON CONTACT MTM
Evaluates defects based on the relative change in local stress levels in pipeline.
NOT evaluates defects based on physical features/dimensions of the pipeline defects (like other conventional NDT techniques).