1 / 16

Enhancing Conventional Inspections with Multi-Angle A-Scan Feature in Phased Array Systems

The Multi-Angle A-Scan feature provides a comprehensive approach to conventional inspection methods utilizing phased array technology. Users can select any three angles within the S-Scan range, commonly recommended at 45, 60, and 70 degrees, for simultaneous viewing on the A-Scan display. Color coding indicates each angle, simplifying the evaluation of multiple reflections and flaws. This tool is designed for effective notch detection and is ideal for users transitioning to phased array systems from traditional methods.

sileas
Télécharger la présentation

Enhancing Conventional Inspections with Multi-Angle A-Scan Feature in Phased Array Systems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EPOCH 1000 Series ProcedureMulti-Angle Feature

  2. Feature Overview and Activation

  3. General Overview • Available in Phased Array mode only • User designates any three angles (focal laws) within the S-Scan range • The A-scans from each these three angles are overlaid on top of each other in the A-scan • User can view all three A-scans at the same time • Each individual angle is color coded • Perfect when using conventional sizing methods requiring evaluation at 45, 60 and 70 degrees!

  4. Test Block EP1000-PABLOCK-1 Couplant D-12 Required Items • Transducer and Wedge • 5L16-9.6X10-A10P-P-2.5-OM probe • SA10P-N55S wedge

  5. Parameter Setup • Once unit has been properly calibrated… • Set Range to 3in • Set Gain to 18dB • Set Angle to 45 degrees

  6. Feature Activation • Under the Display Setup menu: • Press P2 A-Scan Setup • Change “AScan” to “Multi-Angle” • Choose the 3 angles for the Multi-Scan AScans • Press ESC to return to the home screen • NOTE: Selecting angles of 45, 60, and 70 degrees allows you to see all three standard conventional angles at once on a single AScan!

  7. Multi-Angle A-Scan • Set up for detection of large notch on PA block • S-Scan shows multiple reflectors from notch, corner of block, etc • On the S-Scan, you can see multiple flaws at different angles but can only see one angle on the A-Scan

  8. Multi-Angle A-Scan (cont.) • Switch to the Full A-Scan view • Even though the selected angle is 45 degrees, multiple angles are visible on a single A-Scan!

  9. Focal Law Adjustment • When in coarse adjustment, adjusting the focal law will scroll through the 3 selected angles (45, 60, 70 or all focal laws) • Adjusting the focal law in fine adjustment will adjust the angle over the S-Scan range in 1 degree increments and so on…

  10. A-Scan Colors • The angles in the A-Scan are color coded • Red = Lowest number angle (e.g. 45) • Yellow = Middle number angle (e.g. 60) • Green = Highest number angle (e.g. 70) • The active/selected angle is ALWAYS White • The remaining angles have the same colors as listed above White=45 Yellow=60 Green=70 Red=45 White=51 Yellow=60 Green=70

  11. Multi-Angle-Single Toggle • It is possible to toggle between single A-scan (standard) mode and Multi-Angle mode after activating the Multi-Angle feature • In the PA DISPLAY group menu • Press P2 [Ascan] • Use the up and down arrows or knob to toggle between Single and Multi-Angle

  12. Demonstration Procedure

  13. Notch Detection • Set angle to 45 and peak up on the small notch on block • The 45 degree waveform is White • Other reflections from the notch at 60 and 70 degrees are shown in yellow and green

  14. Notch Detection (cont.) • Back away from notch, and peak up the yellow waveform (representing 60 degrees) • Even though 45 degrees is the active angle, you can measure signals at the other selected angles!

  15. Notch Detection (cont.) • Switch angle to 60 degrees • The peaked up waveform that was yellow will now become the white angle! • Reflections from 45 and 70 degrees would now be shown in red and green

  16. Feature Summary • Multi-Angle is designed as a basic, “first-step” benefit of phased array in conventional angle beam applications. • Utilizes full A-scan view while still displaying information at 3 selectable inspection angles • Can be less intimidating and easier to read than the S-Scan image, providing an excellent first step towards implementing phased array in a conventional inspection

More Related