CIVIL APPLICATION OF LASER RANGE FINDER Synopsis: [laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons . Many scientific‚ military‚ medical and commercial laser applications have been developed since the invention of the laser ‚ one of these application is laser rangefinder ‚ which is a device that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates
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Lasers | <<< | >>> | Feedback | You can buy lasers from: * (currently no entries) (Vendors: you can place a link here.) Ask RP Photonics for advice on any aspect of lasers. Definition: devices generating visible or invisible light‚ based on stimulated emission of light “Laser” is an acronym for “Light Amplification by Stimulated Emission of Radiation”‚ coined in 1957 by the laser pioneer Gordon Gould. Although this original meaning denotes an principle of operation
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Lasers and Their Uses We have all at some point in our lives used or seen someone use a laser. They are used in compact disc players for stereos or computers‚ laser surgery‚ laser printers‚ holography‚ cutting and borring metals‚ communication‚ bar-code scanners‚ etc. Over the past three decades’ lasers have become a tool used daily by many people and they have become very useful in scientific research. As you can see lasers are a very useful and important tool which is why I have chosen this
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ALLOY STEELS I. A. ALLOYING ELEMENTS Any metallic element added during the making of steel for the purpose of increasing corrosion resistance‚ hardness‚ or strength. The metals used most commonly as alloying elements in stainless steel include chromium‚ nickel‚ and molybdenum. Characteristic of alloying elements Very important elements for alloy steels are manganese‚ nickel‚ chromium‚ molybdenum‚ vanadium‚ tungsten‚ silicon‚ copper‚ cobalt and boron. All commercial steels contain 0‚3-0
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LASER COMMUNICATION SYSTEM Naveen IV Sem‚Dept of Electronics & Communications Sahyadri College of Engineering & Management‚Mangalore ABSTRACT: Laser communication is one of the key area in wireless Communications. This paper includes analysis‚ optimization‚ design and system level development of signal transformation between satellites or any two sources. Which work similarly to fiber optic links‚ except the beam is transmitted through free space. While the transmitter and receiver must
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A REPORT ON LASER 1 Techno India College of Technology Megacity‚Rajarhat Kolkata 700156 A Report on LASER TECHNOLOGY By ZAKIR UDDIN AHMAD Student B.Tech 3rd year Applied Electronics and Instrumentation Engineering 2012 2 Abstract The word laser is an acronym that stands for "light amplification by stimulated emission of radiation." In a fairly unsophisticated sense‚ a laser is nothing more than a special flashlight. Energy goes in‚ usually in the form of electricity‚ and light comes out
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CHAPTER 13 SEMICONDUCTOR LASERS Pamela L. Derry Luis Figueroa Chi-Shain Hong Boeing Defense & Space Group Seattle ‚ Washington 13.1 GLOSSARY A C c D Dc D d deff dG dg / dN E Ec Eg En E cn En E e Fc F fc fd fo fp Constant approximating the slope of gain versus current or carrier density Capacitance Speed of light Density of states for a transition Density of states for the conduction band Density of states for the valence band Active layer thickness Effective beam width in the transverse direction
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The ruby laser‚ first invented in 1960‚ was the world’s first laser. Created by Theodore Maiman‚ the ruby laser is composed of aluminium oxide where some of the aluminium ions have been replaced with chromium ions. These chromium ions are what gives the ruby laser its red color. Its gain medium is a cylindrical crystal. A fully reflecting mirror and a partially reflecting mirror are placed at both ends of the cylindrical crystal. A high intensity lamp is spiraled around the cylinder to produce a
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The Metal Injection Moulding process (MIM)‚ considered as a development of the Powder Injection Moulding (PIM)‚ became‚ over the years‚ a competitive manufacturing process for small components‚ offering an alternative to other processes‚ more expensive to create these parts. History of the technology The PIM process was at first developed in the 1930s in the USA. This process was originally intended for ceramics. Then‚ during the Second World War‚ metal powders appeared. The process of Metal
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Metal fabrication is the building of metal structures by cutting‚ bending‚ and assembling processes: Cutting is done by sawing‚ shearing‚ or chiseling (all with manual and powered variants); torching with hand-held torches (such as oxy-fuel torches or plasma torches); and via numerical control (CNC) cutters (using a laser‚ mill bits‚ torch‚ or water jet). Bending is done by hammering (manual or powered) or via press brakes and similar tools. Modern metal fabricators utilize press brakes to either
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