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- Infrared_and_thermal_testing abstract "Infrared and thermal testing is one of many Nondestructive testing techniques designated by the American Society for Nondestructive Testing (ASNT). Infrared Thermography is the science of measuring and mapping surface temperatures. "Infrared thermography, a nondestructive, remote sensing technique, has proved to be an effective, convenient, and economical method of testing concrete. It can detect internal voids, delaminations, and cracks in concrete structures such as bridge decks, highway pavements, garage floors, parking lot pavements, and building walls. As a testing technique, some of its most important qualities are that (1) it is accurate; (2) it is repeatable; (3) it need not inconvenience the public; and (4) it is economical." An infrared thermographic scanning system can measure and view temperature patterns based upon temperature differences as small as a few hundredths of a degree Celsius. Infrared thermographic testing may be performed during day or night, depending on environmental conditions and the desired results.All objects emit electromagnetic radiation of a wavelength dependent on the object’s temperature. The frequency of the radiation is inversely proportional to the temperature. In infrared thermography, the radiation is detected and measured with infrared imagers (radiometers). The imagers contain an infrared detector that converts the emitting radiation into electrical signals that are displayed on a color or black & white computer display monitor.A typical application for regularly available IR Thermographic equipment is looking for “hot spots” in electrical equipment, which illustrates high resistance areas in electrical circuits. These “hot spots” are usually measured in the range of 40 °C to 150 °C (70 to 270 °F) above ambient temperatures. But, when engineers use its patented proprietary systems to locate subsurface targets such as Underground Storage Tanks (USTs), pipelines, pipeline leaks and their plumes, and in this project, hidden tunnels, we are looking for temperature patterns typically in the range of 0.01 °C to 1 °C above or below ambient temperatures. After the thermal data is processed, it can be displayed on a monitor in multiple shades of gray scale or color. The colors displayed on the thermogram are arbitrarily set by the Thermographer to best illustrate the infrared data being analyzed.In this roofing investigation application, infrared thermographic data was collected during daytime hours, on both sunny and rainy days. This data collection time allowed for solar heating of the roof, and any entrapped water within the roofing system, during the daylight hours. IR data was observed until the roof had sufficiently warmed to allow detection of the entrapped wet areas because of their ability to collect and store more heat than the dry insulated areas. The wet areas would also transfer the heat at a faster rate than the dry insulated roof areas. At this point in time, the wet areas showed up as warmer roof surface temperatures than the surrounding dry background areas of the roof. During the rainy day, with minimum solar loading, any entrapped leak plumes would become evident because of their cooler temperature as compared to the dry roof areasAn infrared thermographic scanning system measures surface temperatures only. But the surface temperatures that are measured on the surface of the ground, above a buried pipeline, are, to a great extent, dependent upon the subsurface conditions.The subsurface configuration effects are based upon the theory that energy cannot be stopped from flowing from warmer to cooler areas, it can only be slowed down by the insulating effects of the material through which it is flowing. Various types of construction materials have different insulating abilities. In addition, differing types of pipeline defects have different insulating values.".
- Infrared_and_thermal_testing wikiPageID "18463064".
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- Infrared_and_thermal_testing wikiPageOutDegree "24".
- Infrared_and_thermal_testing wikiPageRevisionID "648519823".
- Infrared_and_thermal_testing wikiPageWikiLink Ambient_temperature.
- Infrared_and_thermal_testing wikiPageWikiLink American_Society_for_Nondestructive_Testing.
- Infrared_and_thermal_testing wikiPageWikiLink Bridge.
- Infrared_and_thermal_testing wikiPageWikiLink Category:Infrared_imaging.
- Infrared_and_thermal_testing wikiPageWikiLink Category:Nondestructive_testing.
- Infrared_and_thermal_testing wikiPageWikiLink Convection.
- Infrared_and_thermal_testing wikiPageWikiLink Electrical.
- Infrared_and_thermal_testing wikiPageWikiLink Electrical_circuits.
- Infrared_and_thermal_testing wikiPageWikiLink Electrical_network.
- Infrared_and_thermal_testing wikiPageWikiLink Electricity.
- Infrared_and_thermal_testing wikiPageWikiLink Electromagnetic_radiation.
- Infrared_and_thermal_testing wikiPageWikiLink Heat_conduction.
- Infrared_and_thermal_testing wikiPageWikiLink Highway.
- Infrared_and_thermal_testing wikiPageWikiLink Infrared.
- Infrared_and_thermal_testing wikiPageWikiLink Infrared_thermography.
- Infrared_and_thermal_testing wikiPageWikiLink International_Organization_for_Standardization.
- Infrared_and_thermal_testing wikiPageWikiLink Nondestructive_testing.
- Infrared_and_thermal_testing wikiPageWikiLink Pipeline_transport.
- Infrared_and_thermal_testing wikiPageWikiLink Radiation.
- Infrared_and_thermal_testing wikiPageWikiLink Room_temperature.
- Infrared_and_thermal_testing wikiPageWikiLink Science.
- Infrared_and_thermal_testing wikiPageWikiLink Solar_heating.
- Infrared_and_thermal_testing wikiPageWikiLink Solar_thermal_collector.
- Infrared_and_thermal_testing wikiPageWikiLink Thermal_conduction.
- Infrared_and_thermal_testing wikiPageWikiLink Thermogram.
- Infrared_and_thermal_testing wikiPageWikiLink Thermography.
- Infrared_and_thermal_testing wikiPageWikiLink Tunnel.
- Infrared_and_thermal_testing wikiPageWikiLink Tunnels.
- Infrared_and_thermal_testing wikiPageWikiLink Underground_Storage_Tanks.
- Infrared_and_thermal_testing wikiPageWikiLink Underground_storage_tank.
- Infrared_and_thermal_testing wikiPageWikiLink Wavelength.
- Infrared_and_thermal_testing wikiPageWikiLinkText "Infrared and thermal testing".
- Infrared_and_thermal_testing wikiPageWikiLinkText "thermal test".
- Infrared_and_thermal_testing hasPhotoCollection Infrared_and_thermal_testing.
- Infrared_and_thermal_testing wikiPageUsesTemplate Template:Reflist.
- Infrared_and_thermal_testing subject Category:Infrared_imaging.
- Infrared_and_thermal_testing subject Category:Nondestructive_testing.
- Infrared_and_thermal_testing hypernym Techniques.
- Infrared_and_thermal_testing type Weapon.
- Infrared_and_thermal_testing comment "Infrared and thermal testing is one of many Nondestructive testing techniques designated by the American Society for Nondestructive Testing (ASNT). Infrared Thermography is the science of measuring and mapping surface temperatures. "Infrared thermography, a nondestructive, remote sensing technique, has proved to be an effective, convenient, and economical method of testing concrete.".
- Infrared_and_thermal_testing label "Infrared and thermal testing".
- Infrared_and_thermal_testing sameAs m.04f1rmy.
- Infrared_and_thermal_testing sameAs Q6031482.
- Infrared_and_thermal_testing sameAs Q6031482.
- Infrared_and_thermal_testing wasDerivedFrom Infrared_and_thermal_testing?oldid=648519823.
- Infrared_and_thermal_testing isPrimaryTopicOf Infrared_and_thermal_testing.