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Application of Laser Cleaning Prior to Laser Welding of Aluminum Alloys** * Aluminum alloys are typically used in automotive and aviation industry due to their light weight, corrosion resistance and flexibility. Aside from aluminum which is the major ingredient, other elements such as magnesium, manganese, silicon, tin, zinc and copper...

Principles of Laser Ablation and Laser Cleaning** Introduction* Laser ablation is a process through which a pulsed laser deposits a certain amount of energy on a surface and it removes the material by evaporation or sublimation. CW lasers can also be used in laser ablation but pulsed lasers are more...

Nuclear Decontamination by Laser for Decommissioning** * Nuclear energy is an important substitute for replacement of fossil fuels such as coal which contributes heavily to global warming. In the Canadian province of Ontario, where the production of electricity by coal burning power plants has been banned in the last few...

Financial Payback of Laser Coating Removal Operations** Coating removal is basically an ablative process applied on a variety of substrates including composites, glass, plastics, metal etc. Also, it involves several costs. There is research and several studies comparing the coating removal processes. This article highlights the financial payback of the...

How do You Measure Light? ** * When one wants to measure the quantity of light, one has to refer to five metrics or parameters that describe it. This is all part of the science of photometry, which deals with the quantification of the amount of light. There is also...

Laser Cleaning Of Aircraft Parts** * When it comes to cleaning aircraft parts, no technology is superior to laser cleaning. Conventional methods of cleaning aircraft components such as sandblasting, water jetting and dry ice blasting, each have their own drawbacks. Use of pulsed lasers will enable one to get rid...

* Introduction: * Before we start, it is imperative to understand that all measurements need to be made with a suitable spectrometer or spectroradiometer. One cannot and should not rely on manufacturers’ specs. It is important to look at the spectral power distribution (SPD) which tells you much more about...

Laser Cleaning of Stone and Masonry ** * This article attempts to answer the following questions regarding laser cleaning of stones and masonry: • Are laser cleaning systems ready and appropriate to take care of stone and masonry? • What are the advantages and paybacks of laser stone cleaning? • What are...

The Comparison between a Near IR spectrometer (diffuse reflectance) and a Raman/FT-Raman spectrometer** In a previous article, a near IR spectrometer operating in diffuse reflectance geometry was compared with a FTIR/FT-NIR spectrometer. In this article the attention is turned to comparing a near IR spectrometer to a Raman/FT-Raman spectrometer. Each...

* * Lighting in Relation to Growing Cannabis** * With the legalization of medical cannabis in many regions of Canada and the USA, there has been a surge in the developmental aspect of grow lighting by the Solid State Lighting (SSL) industry. Although HPS and Metal Halide lamps have been in...

* Comparing the NIR spectroscopic method with FTIR/FT-NIR * ** The goal of this article is to compare the near IR spectroscopic technique with FTIR and FT-NIR methods. Molecular spectroscopy is the study of interaction of Electromagnetic waves with matter. Molecular bonds are capable of rotation and vibration which include...

* Different field applications for portable near-IR spectrometers * ** * (Difuse reflection) * Near-IR spectroscopy was first discovered by William Herschel in 1800 when he observed that the region outside the dispersed visible spectrum near the red wavelength increased the temperature of a thermometer. Later he verified that the...

Held on April 25, 2017** *Photometry Webinar Material* Please download a copy of the presentation slides: Presentation Slides PDF » [1] *Photometry Level 2 Quiz* Test your Photometrics knowledge taking our short Quiz: Download the 20-Questions Quiz » [2] Answer the Quiz online » [3] [1] https://alliedscientificpro.com/web/binary/saveas?model=ir.attachment&field=datas&filename_field=name&id=32138&t=1493153326372 [2] https://alliedscientificpro.com/web/binary/saveas?model=ir.attachment&field=datas&filename_field=name&id=32140&t=1493153728136 [3]...

Held on Dec, 12 2017** *Photometry Webinar Material* Please download a copy of the presentation slides: Download PDF » [1] *Photometry Level 1 Quiz* Test your Photometrics knowledge taking our short Quiz: 20 Questions Quiz » [2] [1] https://alliedscientificpro.com/web/content/51390?download=true [2] https://alliedscientificpro.com/survey/start/photometric-training-100-pts-5...

In this article, the effects of artificial lighting on animals grown on farms is discussed. Proper lighting is as important as ventilation, heating, and cooling.  In case of animal production facilities, it can strongly influence animal comfort and physiological response. Artificial lighting which includes, incandescent, florescent, and LED lighting can...

Laser cutting has been a widely accepted fabricating method soon after the invention of lasers in the 1960s.  It is now a popular manufacturing technique which has been employed for cutting a great number of different materials, especially difficult to cut materials. Laser cutting is currently holding the largest market...

** ** Optical fiber lasers using a MOPA architecture provide relevant assets, such as high beam quality, high repetition rate, and short pulse duration, for the development of high throughput laser processes. Cutting strengthened glasses, among other materials, is one of these. Furthermore, increasing the efficiency of picosecond laser sources...

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SWIR technology has long been used for a vast multitude of applications because of its distinct features. Included in these are civil applications (solar cell inspection, bottling plant inspection, fruit inspection, fire fighting, etc.) and military applications (laser guiding systems, camouflage detection, surveillance, night vision, boarder monitoring, etc.). The principle advantages...

This article compares the advantages and disadvantages of rolling shutter and global shutter modes for sCMOS cameras. These two modes are basically different ways of exposing the camera to  the scene and reading out the image. Choosing either mode will  depend on the application and is described in this article....