|Frigate Marine Surveyors,|
Morehead City, Beaufort, Manteo, and Wilmington, North Carolina - Norfolk and Hampton, Virginia USA
Serving the Northeast, Mid-Atlantic South Atlantic and Gulf Coasts
Lloyd E. Griffin, III, SAMS® AMS®, NAMS® CMS
Principal Marine Surveyor
Yachts & Small Craft, Tug & Barge
Certified Infrared Thermographer
Frigate Marine Services provides Thermal Imaging Services to the marine, residential and commercial industries for non-destructive testing.|
By using infrared technology, detection of delamination, blistering, structural integrity, electrical, engine components and cooling systems problems in all sections of vessels can be isolated.
The use of destructive testing required is minimizes the need to cut holes in an exploratory manner to determine the extent of damages or the condition of the hull.
Also an infrared inspection is used beyond the boat's hull and superstructure to its electrical and mechanical systems.
Thermography Irregular dark spots on thermal imaging represent high moisture conditions in the cored FRP laminate. These are not visible to the naked eye.
The radiation measured by the camera does not only depend on the temperature of the object, but also the emitted energy. Radiation also originates from the surroundings and is reflected from the object. The radiation from the object and the reflected radiation will also be influenced by the absorption of the atmosphere. An infrared camera detects the radiant heat from a surface, based on the surface's temperature, emitted energy, and reflected heat radiation from the surroundings. Understanding how that heat got there is essential to making proper thermographic interpretations. To measure temperature accurately, compensation for the effects of a number of different radiation sources is necessary. In addition, the proper distance yields an accurate measurement result.
Thermography can detect anomalies made to vessel structure. The subjective statements in this report are the personal, unbiased professional analysis, opinions and conclusions of the thermographer. The thermographer shall be held harmless for any subsequent conditions arising since the findings are valid only at the time of the inspection.
High injector temperatures can indicate plugging.
Applications: Specific infrared benefits:
Composite Hull Delamination:
This vessel was washed ashore into a stand of trees by a tidal surge from a recent hurricane. Repair facilities have a difficult task in preparing estimate for repair when the extent of damage cannot be determined by conventional means without destructive testing (drilling, cutting, etc.) and even then the full extent of damage may not be known until repairs are underway.
|Composite Hull Water Intrusion:|
When performing thermal imaging inspections of composite hulls, it is possible to detect all anomalies during the course of a single inspection such as structural bonding integrity of stringers and bulkheads, delamination and water intrusion composites and coring materials. The following photos clearly show water intrusion that has entered this fully cored hull over the years and originates at a small vent fitting on the hull side.
|Blister repair with residual moisture in rudder||Fairing in the overhang|
|Water intrusion around forward cabin --->|
|Electrical Panels and Components|
|(Above) Bad breaker connection on main panel of a large boat.
The infrared scan instantly reveals and pinpoints a loose, over heating and corroded electrical connections.
The following images are self-explanatory:
|Engine Temperature Scans:|
Finding hot spots on engines has never been easier. Thermal imaging allows the entire engine to be recorded with only 2 or 3 thermal photos. Each photo records each piece with a unique and accurate temperature designation. Heat exchangers can be scanned for blockage problems, injector problems can be detected early and a variety of other early detection findings can be sighted from the same images. Again the following images are self-explanatory:
Residential / Commercial|
Residential Structure Water Intrusion:
The inspection revealed more than 3 times the damage sighted by the adjuster for the insurance company. The following pictures depict the thermal image, clearly showing the water damage, and the visible image (taken simultaneously) which shows no clear visible indication of the extent of water damage in this area.
Structure inspections for water damage, leaks and a variety of other applications. This service is invaluable to our clients who suffered damage to their properties resulting from hurricanes, tropical storms, construction deficiencies, etc.
After widespread damage, such as that from hurricanes, concentrated in a specific geographical location, many home and business owners are left to deal with insurance adjusters that are only equipped with the experience and knowledge to offer settlement based on visible damage. Our thermal imaging service can identify water damage to structures, insulation, flooring, etc. that is not visible to the naked eye and has saved thousands of dollars for our clients.
Installed March 1, 2009, Last Revised May 14, 2020 - This site is hosted and maintained by Don Robertson