Characterization of ship plumes is very challenging due to the great variety of ships, fuel, and fuel grades, as well as the extent of a gas plume. In this work, imaging of ship plumes from an operating ferry boat was carried out using standoff midwave (3-5 m) infrared hyperspectral imaging. Quantitative chemical imaging of combustion gases was achieved by fitting a radiative transfer model. Combustion efficiency maps and mass flow rates are presented for carbon monoxide (CO) and carbon dioxide (CO2). The results illustrate how valuable information about the combustion process of a ship engine can be successfully obtained using passive hyperspectral remote sensing imaging.
In order to illustrate the benefits of thermal infrared hyperspectral imaging (HSI) for mineral mapping, an airborne survey was carried out over an open-pit mine in the Thetford Mines (Qc, Canada) area. The results show how high spectral resolution data facilitates temperature emissivity separation (TES) and atmospheric correction in order to retrieve a thermodynamic temperature map of the area and its associated spectral emissivity datacube. Mineral mapping of various minerals such as lizardite, serpentinite, and quartz was achieved through linear unmixing of the emissivity data using reference emissivity curves found in spectral libraries. The results illustrate the potential of TIR HSI for airborne mapping of silicate minerals.
In order to save a considerable amount of time and finances, Xenics thermal cameras can detect heat defects in electronics before qualification. These cameras can also optimize a working instrument’s life cycle when used in critical control of heat dissipation. This application note describes how Gobi thermal imaging cameras can be used in PCB prototyping and repair, and in verifying thermal designs in power electronics motor drives.
Thermal imaging cameras have been used by scientists, researchers and R&D specialists for many years in a variety of applications.This application note describes the difference between cooled and uncooled thermal imaging cameras, and when to use them in applications such as industrial R&D, academics and research, and defense and aerospace.
When laying out a site design for surveillance using currently marketed uncooled thermal cameras, it is important to understand the coverage capability of the cameras under evaluation in terms of field of view and range.
Infrared cameras are incredibly useful when used in safety related applications. They can improve a driver’s sight in low light or foggy conditions, detect smoke or fire at its onset from a long distance, or image through dense smoke in order to detect trapped victims in danger, and can even be used to detect fevers in people carrying an infectious disease.
This application explores the use of a high speed, high performance infrared camera used to analyze dust cloud explosions. These types of explosions can occur in work areas where coal, flour, pollen, and powdered metal are present. To find out how infrared cameras can be used to study the ignition, explosion, propagation phenomologies, and other thermodynamic processes in dust cloud explosions, and to ultimately help prevent such explosions, download the application note.
Around-the-clock surveillance capability in any weather is a decisive operational ad-vantage for military and emergency services. In these and similar applications, SWIR cameras are well-suited for everyday use because they show good results when compared with other imaging technologies. To recognize and track objects of light-reflecting as well as self-radiating natures, SWIR cameras can be easily combined with thermal LWIR cameras and their images overlaid to enhance their content and validity. By Raf Vandersmissen, CEO, sInfraRed Pte Ltd
Significant technical challenges need to be overcome when it comes to detection, location, and identification of small caliber hostile gunfire. The key characteristic for the detection of a small caliber gunfire, which also leads to the most obvious technical challenge, is its short, few milliseconds long, muzzle flash.
This application note examines the benefits of high speed infrared cameras for use in testing ballistic impacts, and compares their use to that of traditional high-speed visible imaging systems. Visible impact ballistic testing is discussed, as well as infrared impact ballistic testing. The results of a field testing experiment are also addressed.
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