Olympus NDT PV200 Series

Nicholas BublitzGlobal Products Support Specialist

PV Series Description

� The PV Series is a “Solution” package. Different configurations can be configured to meet customer’s applications

PV (Pressure Vessel) Series Description

� The “PV” Series solutions

include:

– Acquisition unit

– Scanner

– Applicable Accessories

– Setup and Analysis Tools

Typical AUT Techniques

PV200 Technique

Phased

TOFD

Array

PV200 Description

♦ PV200 is a generic description for a weld inspection package utilizing Phased Array and Tofd techniques.

♦ Package tools are determined predominately by wall thickness and code compliance

PV200 Technique

♦ PV200 incorporates Phased Array ultrasonics

♦ PV200 usually also incorporates Tofd

♦ In some case other techniques like Creeping waves may be required but it is less common

Technique Overview: Brief Phased Array and Tofd Theory

What is Phased Array?♦ Advanced Ultrasonic technique

used for flaw detection, sizing, and imaging.

♦ Allows for electrical manipulation of probe characteristics by introducing time shifts to sent and received signals

♦ Utilizes multi-element (array) probes for increased capabilities over conventional ultrasonics.

Advantages of Phased Array♦ Electronic scanning (raster) possible

without moving probe. (linear or E-scans scans)

♦ Increased control of beam characteristics.

♦ Simultaneous inspection with multitude of angles using one probe (sector scanning)

♦ Can better inspect complex geometries or limited access areas.

♦ Can replace costly and hazardous radiography applications.

Sector Scans Phased Array Sector Scan Channel - Defined as different focal laws

(A-scans) at different angles being generated by the same group of elements on the same channel.

Sector Scan Advantages� Allows use of small probes and

provides large coverage area from small footprint

� Provides higher level of detection, flaw sizing and flaw characterization

� Can provide full volumetric inspection in one channel\one acquisition on most welds thinner than 25mm

� Flaw detection and sizing less dependent on orientation due to multi-angle coverage

Linear or E-scans Scans

Phased Array Linear (E-Scan) Channel - Defined as the same focal law (A-scan) being multiplexed across a series of different elements resulting in the equivalent of a conventional raster scan.

Linear (E-scan) Advantages� 1:1 match for conventional UT raster

scans and procedures. Only different in how the data is acquired. Analysis is exactly the same.

� Provides fast and easy set up and calibration for amplitude based inspection criteria.

� Easy analysis for codes that do not require flaw characterization

Encoded Phased Array

♦ Phased Array can offer a high level of detection and sizing capability and retainable data.

TOFD

� Uses send and receive probes

� The incoming wave vibrates the defect and emits energy in all directions

� The receiver gets one or more signals from the defect

Wave Propagation

FLAW

Diffractedwaves

Diffractedwaves

Incidentwave

Reflectedwave

All directions - Low energy - Independent of incidence angle

TOFD Limitations

� Blind areas :

– Near surface The lateral wave travels below the surface, it is not a surface wave causing a small “dead zone” near the surface

– Back wall Large signal from reflected energy at the back wall creates a dead zone as well

TOFD Data

♦ Side View

♦ Grey scale palette

♦ Sized with cursors

TopVolume

Back Wall

Radiography Replacement

♦ The PV series is suitable for codes where radiography replacement by ultrasonics is allowed

♦ Some of the benefits include no radiation hazards to contend with, no need to stop other productions, and height sizing

PV200 Main Components

PV200 Main Solution Components

♦ NDT Setup Builder

♦ Scan plan Design Software

♦ Setup imported directly into OmniScan

PV200 Main Solution Components

♦ OmniScan MX2– Portable and modular– Easy to use interface

– Setup Wizards

– Ray tracing and weld overlays

– MultiGroup capability (up to 8 Groups)

PV200 Main Solution Components

♦ Mechanical Scanner‒ Magnetic wheel based‒ Chain link based‒ Semi-Automatic

‒ Fully Automatic

PV200 Main Solution Components

♦ Couplant Delivery

– Water Sprayer – manually operated

– CFU – automatic water flow system

Probes and Wedges

♦ Vary by customer need, thickness, material etc.

♦ Typically use IHC (irrigation ports, holes for scanner arms, carbide feet)

♦ Curved wedges required on pipes etc.

PV200 Main Solution Components

♦ Accessories (variable)

– Spare parts– Umbilical/cabling– Preamplifiers– Adapters and extensions

Analysis Software

� Analysis can be done‒ On board the OmniScan‒ In OmniPC on a PC‒ In TV Software on a PC

Reporting� Reporting is usually done in a “table of indications”

manner with images of indications and associated readings

� Similar HTML report from all analysis options� Easy email able and Windows friendly� Ray-Tracing, weld overlays etc. help comprehension

and characterization.

Performance/Calibration Blocks♦ Used to calibrate system and define performance

♦ Used to validate technique over required range

♦ Used to test and validate operators

♦ Typically contains notches and SDH in pattern displaying coverage and effective detection and sizing capabilities

Applicable Customers and Codes♦ PV200 is predominately geared towards

the following two customers

– Manufacturing companies utilizing AWS and ASME and API codes for weld inspection*

– Service companies performing weld inspection to AWS and ASME and API requirements*

*and other codes outside North America

For additional information or to download a product brochure please visit our website:

http://www.olympus-ims.com/en/pv-100/

Thank you!