APPLICATIONS OF LASER PROFILOMETRY FOR TUBE INSPECTION

General Theory of Optical Triangulation
Optical Triangulation Diagram	Lateral Detector
Small Rotating Probe Head Which Contains Optics, Laser Diode, and Detector
Example of How Laser Profilometry Probe Collects Data in Tube	1.0" & 2.0" Articulated Laser Profilometry Probes
Example of Full System Which Utilizes Laser Profilometry in Harsh Field Environments
Applications of Laser Profilometry in Plant Inspections	Detectable Failure Mechanisms
SMALL BORE TUBING: i.e. Heat Exchangers, Feedwater Heaters, Steam Generators, Lube Oil Coolers, etc. TUBING WITH BENDS: i.e. Boilers, U-Bend Exchangers, etc. LARGER DIAMETERS: i.e. Reformers Tubing, Serpentine Furnace Tubing, Nozzles, etc.	Corrosion Erosion Pitting ID Expansion Due to Creep Open Cracking Denting Swelling
Benefits of Technology
Accuracy High Resolution Not Effected by Exterior Attachments (i.e. Fins, etc.) User Friendly Data Interpretation Non Contact Method No Couplants Required (i.e. Water, Gel, etc.)
Mussel Damage in Main Condenser Tubing
Laser Profilometry Image of Mussel Lodged in Main Condenser Tube	Main Condenser Aboard a Super Oil Tanker
Rifled Boiler Tubing
Laser Profilometry Image of Sample Rifled Boiler Tube	Rifled Boiler Tube
Pitting in Boiler Tubing
Laser Profilometry Image of Pit in Boiler Tube	Performing Boiler Inspection Using Laser Profilometry Principle
Corrosion Identified with Laser Profilometry in Finned Exchanger Tube
Laser Profilometry Image of Corrosion in Finned Exchanger Tube	Corroded Finned Exchanger Tube
Example of Catalyst Dusting Damage
Laser Profilometry Image of Catalyst Dusting in Reformer Tube	Drawing of Catalyst Dusting Failure Mechanism in Reformer Tube
Example of Finned Furnace Tube
Laser Profilometry Image of Corrosion in Furnace Tube	Finned Furnace Tube
Example of Split in Economizer Tube
Profilometry Image of Split in Economizer Tube	Split Economizer Tube
Benefits of Technology	Technology Limitations
Accuracy High Resolution Not Effected by Exterior Attachments (i.e. Fins, etc.) User Friendly Data Interpretation Non Contact Method No Couplants Required (i.e. Water, Gel, etc.)	I.D. Surface Inspection Only Requires Surface To Be Clean
LOTIS 5-Inch Probe