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28/03/2024

Absolute Temperature and Emissivity Calculation Using a Multispectral Infrared Camera and n-Color TES Image Processing

Over the past few years, two-color pyrometry has proven to be a fast and reliable non-invasive method to accurately determine the temperature of materials by overcoming emissivity issues usually encountered by thermal infrared cameras. However, the need for multiple independent cameras makes this method expensive to implement. In this work, a single Telops MS M100k equipped with a fast-rotat...

Application Note 485.41 KB pdf

28/03/2024

High-Speed Infrared Imaging of Crack and Hot-Spot Formation in a Graphite-Fiber and Epoxy Composite Under Stress

The enormous progress made in the three last decades in high-speed thermal imaging have given rise to a wide variety of applications, of which material testing is maybe one of the most prominent. Split-Hopkinson bar experiments can especially benefit from the development of high-speed and high-resolution thermal infrared imaging. When materials are subjected to mechanical stress, rapid chang...

Application Note 485.41 KB pdf

28/03/2024

High-Speed Infrared Imaging of Metal Parts Fabrication by Additive Manufacturing

Additive manufacturing, also known as 3D printing, is considered by many to be the biggest industrial revolution since the Internet. This method allows rapid fabrication of metal pieces with various compositions, shapes and sizes. However, the extremely high thermal gradients involved in this fabrication process can induce stress and deformation in the materials. In an effort to better under...

Application Note 617.82 KB pdf

28/03/2024

Volcanic Eruption Observations from an Elevated Point of Stromboli Using Thermal Infrared Hyperspectral Imaging

The Stromboli volcano is well known for its periodic eruptions of small magnitude containing various proportions of ash, lava and gases. Imaging was carried out at a relatively high spectral and spatial resolution before and during eruptions from the North-East crater. Both sulfur dioxide (SO2) and silicon tetrafluoride (SiF4) could be successfully identified within the volcano’s plume from ...

Application Note 590.9 KB pdf

28/03/2024

High-Speed Infrared Imaging of a Split-Hopkinson Pressure Bar Experiment

In order to illustrate this concept, high-speed infrared imaging was carried out at 13 000 frames per second during a split-Hopkinson pressure bar experiment on a polymer sample at the Structural Impact Laboratory (SIMLab) of the Norwegian University of Science and Technology. The results illustrate how high-speed infrared imaging can provide detailed information about the thermal properties...

Application Note 592.99 KB pdf

28/03/2024

Direct Imaging of Shale Gas Leaks Using Passive Thermal Infrared Hyperspectral Imaging

There are many types of natural gas fields including shale formations that are common especially in the St-Lawrence Valley (Canada). Since methane (CH4), the major component of shale gas, is odorless, colorless and highly flammable, in addition to being a greenhouse gas, methane emanations and/or leaks are important to consider for both safety and environmental reasons.

Telops recently...

Application Note 882.93 KB pdf

26/03/2019

Application Guide for Screen-Grid

TP-122 Power Tube Application Note: Screen-Grid Current, Loading, and Bleeder Considerations

Application Note 42.08 KB pdf