Features

Q-Switched 800-Watt DPSS YAG Laser

Lee Laser (Orlando, FL) has developed a new, 800-Watt CW Nd:YAG laser that is capable of Q-switched performance in excess of 600 watts average output power at a 10-kHz pulse rate. The short pulse width capability is less than 70ns at 10 kHz without risk of damage to the internal optical elements. Pulse instability less than 8 percent peak-peak has been demonstrated. The laser’s electrical power consumption is 10 kW. Applications include deep marking and engraving, cutting of hard materials, flat-panel display (FPD) manufacture, and laser patterning for LCD manufacture.

Posted in: Products, Products
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3-Watt RGB LEDs

Lumex (Palatine, IL) has introduced the 3-Watt TitanBrite™ RGB, a square-shaped LED with dimensions of 10mm x 10mm. It can result in 30% cost savings as well as a 70% real estate savings compared to the use of individual red, green, and blue packages. Applications include electronic signage, industrial controls, safety/security lighting, and graphic backlighting. They are RoHS-compliant and contain three individual 1-Watt dies in red (636nm), green (525nm), and blue (470nm).

Posted in: Products, Products
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Using Micro OTDRs to Test Fiber Optic Networks

Uses for traditional optical time domain reflectometers, or “OTDRs” include the certification and troubleshooting of very long-haul fiber optic networks such as campus and metro networks. In many LAN, WAN or FTTH environments, however, fiber links are relatively short and, therefore, usually operate over multimode fiber cables at wavelengths of 850nm and 1300nm. A new generation of “Micro OTDR” is ideally suited for this application, which typically has a maximum range of about 25 miles.

Posted in: Articles, Imaging, Photonics, Fiber optics, Certification, Performance tests, Test equipment and instrumentation
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Reinventing Disease Detection and Diagnosis

As devices for disease detection and diagnosis become more advanced, they also are becoming smaller. Next-generation technologies for faster detection of diseases such as cardiovascular disease, melanoma, and breast cancer are handheld devices that are easy to use, portable, and more accurate than many of the currently available diagnostic tools. As the following examples illustrate, immediate diagnosis and detection of life-threatening diseases may soon be held in the palm of your hand.

Posted in: Articles, Medical, Downsizing, Diagnosis, Diseases, Medical equipment and supplies
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Benefits of Magnetostrictive Sensors for Industrial Applications

Modern industrial machines rely on fast, accurate motion control in order to achieve high product quality and productivity, as measurement errors can lead to increased scrap and production downtime. However, these and other costly headaches can be avoided by choosing the proper position-sensing device for your application.

Posted in: Articles, Motion Control, Measurements, Sensors and actuators, Production control, Industrial vehicles and equipment
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Roller Pinion Technology Allows High Positional Accuracy for Precision Applications

Increasingly competitive markets make efficient and accurate processes more critical than ever before. To meet the demands of manufacturers, machine builders are constantly searching for new methods to design faster, more precise, and longer-lasting systems that will facilitate increased productivity.

Posted in: Articles, Motion Control, Performance upgrades, Manufacturing equipment and machinery, Productivity, Bearings
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All Motors are Stepping Motors

In 1938, General Electric began producing a two-phase synchronous induction motor which, at 60 Hz, ran at 75 RPM. The low speed resulted from using a different number of rotors to stator poles or teeth, which made the motor a good bi-directional control motor. This motor was used by Superior Electric Company of Bristol, CT, to run power driven autotransformers used to dim lights in auditoriums and similar applications. General Electric ceased producing this motor in the mid 1950’s due to slow sales.

Posted in: Articles, Motion Control, Transistors, Electric drives, Electric motors
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Intelligent Control Increases Motion System ROI

The economic realities of the industrial marketplace are driving machine builders and integrators to get creative and build more intelligence into their machines in order to increase productivity and lower lifecycle cost. This is done by minimizing time to communicate with the motion controller, and by setting up and optimizing the closed-loop controls that squeezes the last few unneeded time cycles from a machine operation. Therefore, by looking at how a motion controller connects, controls, and can optimize a system, the best performance per dollar invested can often be accomplished.

Posted in: Articles, Motion Control, Adaptive control, Performance upgrades, Industrial vehicles and equipment
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Robert Romanofsky, Senior Scientist, Antenna and Optical Systems Branch

Dr. Robert Romanofsky has over 75 publications and holds five patents in the fields of microwave device technology, high-temperature superconductivity, and the use of thin ferroelectric films in microwave applications. A recipient of NASA’s Exceptional Service Medal, Exceptional Technology Achievement Medal, the Federal Executive Board “Wings of Excellence” award, and the Rotary National Stellar Space Award, he currently serves as senior engineer for the Antenna and Optical Systems Branch at the NASA Glenn Research Center where he works on advanced antenna systems designs.

Posted in: Who's Who
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Demystifying Optical Ethernet Networks

The TDM-to-packet network transformation has been underway in transport/ telecommunications networks for some years now, fueled primarily by two trends: (a) the advent of triple-play (voice, video, data) for enterprise and residential customers and, lately, the explosion in video and mobile data services, and (b) the evolution in both packet- and transport-network equipment.

Posted in: Application Briefs, Imaging, Optics, Photonics, Architecture, Fiber optics, Telecommunications systems
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