PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Marine Industry Coating Systems: Selecting and Sourcing

Paint and Coatings Industry News

Main News Page


NDT Crack Detector Uses Eddy Current Array

Tuesday, February 15, 2011

More items for Quality Control

Comment | More

Olympus has introduced the OmniScan MX, which uses eddy current array testing for detection of stress corrosion cracking in pipelines and other pressure containment equipment.

Eddy current array can be used to detect surface breaking cracks of the type caused by stress corrosion cracking in pipelines. This technique can be applied on both curved surfaces and flat plates. Both austenitic and ferromagnetic materials can be inspected.

Olympus OmniScan

The technique produces no waste and is thus environmentally friendly, the manufacturer says.

The battery-operated, modular OmniScan MX easily switches from ultrasound phased array to conventional UT, eddy current, or eddy current array, according to the manufacturer.

Pipeline Cracking

Stress corrosion cracking develops in carbon steel and stainless steel pipelines due to absolute hoop, tensile, fluctuating stress and other environmental factors. Other factors include material (steel) type, number of inclusions, surface roughness, coating integrity, and soil pH.

Detection of anomalies in pipelines is essential to continued safe operation, Olympus notes. Numerous catastrophic events have occurred due to anomalies created by manufacturing and environmental conditions.

Two types of SCC are found in pipelines: high pH (9 to 11) and near-neutral pH (6 to 8). Cracks are usually oriented in longitudinal direction but may exist in other orientations depending on the direction of applied stress. Cracks tend to occur in clusters—from several cracks to hundreds—and tend to interlink to form long shallow flaws that can grow to cause ruptures.

According the the manufacturer, eddy current array testing offers:

• Minimal surface preparation;

• Rapid scanning of large surface areas;

• Determination of the approximate depth of the cracks detected;

• C-Scan imaging of the area, for reporting and subsequent inspection comparison; and

• Identification of the deepest crack(s) within a cluster.

Features and Specs

Olympus OmniScan

The OmniScan MX offers a high acquisition rate and powerful software features to efficiently perform manual and automated inspections, the manufacturer says.

Designed for harsh field conditions, the unit is built of solid polycarbonate-based casing and rubber bumpers, to protect it during drops and shock. The unit weighs 4.6kg (10.1 pounds) and will run for six hours with its two Li-ion batteries.

An 8.4-inch real-time display with an SVGA resolution of 800 x 600 allows clear viewing of defects and details under any light conditions. A scroll knob and function keys allow are designed for easy browsing and selection of functions. A mouse and keyboard can be connected for a more PC-like interface, and the unit can generate a wide variety of reports.

The instrument can be switched among different test modules on location. When a new module is connected, the instrument detects the module and its supported technology, setting the configuration and test environment automatically.
 
The OmniScan connector has a probe ID feature that enables physical detection and recognition of the probe connected to the instrument.

The unit can operate in temperatures ranging from 0-40°C (0-35ºC with 32:128 PA) or 32-104 ºF (32-95ºF with 32:128 PA).

More information: http://www.olympus-ims.com/en/omniscan-mx/.

   

Tagged categories: Containment; Corrosion; Cracking; Performance testing; Pipeline; Quality control; Site/field testing

Comment Join the Conversation:

Sign in to our community to add your comments.

KTA-Tator, Inc. - Corporate Office
KTA-TATOR LABORATORY SERVICES

• Coating failure analysis
• Independent
  comparative testing
• Accelerated
  weathering testing
• Toxic metals testing
• A2LA Accredited
800-245-6379


Elcometer, Inc.
Durability & Design meet
Performance & Reliability

Elcometer 319 Dewpoint Meter
View the technical data on the Elcometer Dewpoint meter.


U.S. Zinc

The proven corrosion protection properties of our zinc dust prolong the life of marine coatings. U.S. Zinc – Helping the world work™


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Hydro Utility Penstock Overcoated in 1997. Was power washed and overcoated with major cost saving. No environmental impact with Termarust's low LC50 of 41,007 ppm.


JPCL Europe
Don’t miss an issue!

JPCL EUROPE offers essential news and knowledge for protective and marine coatings professionals in Europe, the Middle East and Africa. Subscribe now: www.jpcleurope.com


Carboline Company
Hyrdrocarbon Fire & Jet Fire Protection

Pyroclad X1 is the latest breakthrough in epoxy based intumescent fireproofing technology


Dampney Co., Inc.
High Temperature Paint

• Prevent Rust / Corrosion
• High Build / Hot Apply
• Custom Colors / VOC-Compliant
• Offshore/Petro Chem/ Refining/Power Industries
• Over 90 Years of Experience

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2014, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com