PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Paint and Coatings Industry News

Main News Page


Remote Tank Corrosion Imaging Unit Wins Patent

Monday, November 1, 2010

Comment | More

A newly patented video camera-and-software system allows remote, safe inspection and analysis of corrosion in tank liners and other caustic environments, the inventors say.

U.S. Patent 7822273, approved Oct. 26 after a 3 ½-year review, covers both the method and apparatus for automatic corrosion detection via video capture. The goal, inventors say, is to increase safety of tank and other inspections by minimizing direct human involvement.

“Corrosion needs to be detected as early as possible and should be corrected in a timely fashion,” the inventors note in records filed with the U.S. Patent Office. “This is particularly true with any caustic material, which produces corrosion but is also harmful to humans.

“Containers and other vessels carrying caustic materials are often transported by truck or train. Some of these materials are extremely caustic to humans and can even prove to be deadly. Caustic material, in addition to potentially being harmful to humans, produces corrosion on tanks, particularly metal tanks.”

Four-Part System

The system consists of:

• A portal-mounted camera that captures images of a tank surface as it passes through the  portal, then displays the images at a remote facility;

• Software with a list of preset corrosion characteristics that analyzes the camera images of surface characteristics of the tank and produces a detection result;

• A histogram that is compiled from the analysis performed by the video image and software and viewed by an operator at a remote facility; and

• A grid overlay superimposed on the tank surface that is also viewed at a remote facility.

Colorful Surface Profiles

In the system, the camera captures a color image of the tank surface and compiles a histogram of the surface orientation. Several surface characteristics or parameters of the tank surface are measured; these, indicating the presence of corrosion, are put into a histogram. The histogram provides a format by which the area of the tank's surface can be analyzed in a readable form.

For instance, the inventors say, “an area of corrosion will typically have a different surface color. The software will discriminate between the different surface colors of the tank and will differentiate between healthy color and healthy lining surfaces and areas of corrosion. The information about the discoloration of the tank surface is incorporated into the histogram.”

Jagged edges, slightly irregular shapes or other characteristics of erosion are also measured and incorporated into the histogram. The software can analyze the general surface contour of the tank lining and determine whether the area is corrosion or simply surface irregularities of the vessel.

Once the information is compiled, it can be transmitted and viewed by the human operator in a readable format in a remote facility.

The inventors are four Jacksonville, FL, men. No company name was listed on the patent documents.

Other devices have used electrodes, ultrasonic waves, refracted light or other technology to detect corrosion, but this is the first to use camera imaging, the inventors say.

   

Tagged categories: Coating inspection; Corrosion; Site/field testing; Software; Tank interiors

Comment from Craig Smith, (11/2/2010, 7:19 AM)

I am assuming that this is for thin walled transportation tanks; not for ASTs with 1 1/4" thick shells?


Comment from Mary Chollet, (11/2/2010, 7:57 AM)

Good question. You may be right, but the patent information is unfortunately a little ambiguous. It says: "This is a method and apparatus for detection of corrosion in linings of tanks, particularly tanks, which carry caustic materials. The specific method and apparatus can be used on a variety of different tanks." You can find the document at http://www.freepatentsonline.com/7822273.html.


Comment Join the Conversation:

Sign in to our community to add your comments.

Sherwin-Williams
Heat-FLex® Hi-Temp 1200

Improved Corrosion
Resistance
Enhanced Durability
Faster Shop Throughput


Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.


Polygon
POLYGON - Temporary Humidity Control

We specialize in innovative climate control solutions for industrial painting, utilizing alternative energy sources and combining desiccants with heating or cooling.


Tinker & Rasor
Holiday Detectors Made in the USA

When it comes to coating inspection, get the right instrument for the job. Tinker & Rasor pulse –type DC holiday detectors come standard with the widest voltage range available, 800 volts to 35,000 volts in one instrument.


U.S. Zinc
Historic Reliability. Innovative Performance.

We offer custom grades and packaging of zinc dust, oxide, metal and fines, U.S. Zinc provides direct shipping to locations worldwide. U.S. Zinc – Helping the world work™


Corrosion Probe, Inc.
From Detection to Correction

Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at
860-767-4402, www.cpiengineering.com


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Arch truss treated with Termarust's (HR CSA) in 2003. This steel arch bridge is rust free on all surfaces including the crevice corroded joints and connections.


WINOA Group
W Abrasives - Surf Prep Pack

Experts in surface preparation are not working only on greens. To discover the SURF PREP PACK dedicated to experts, come to visit us during the GIFA (Hall15 - D14).


Wasser High-Tech Coatings Inc.
Wasser Coatings Protect

Wasser Coatings offer a complete range of Moisture Cure Urethane (NEPCOAT approved) systems in addition to Polyurea membranes and linings(NSF).
www.wassercoatings.com

 
 
 
Technology Publishing

The Technology Publishing Network

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

 
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 2000-2015, 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