Application Briefs

Encoders Ensure Position Accuracy of Linear-Torsion Tester

Instron (Norwood, MA) manufactures materials testing equipment and accessories that are used to test samples ranging from components for jet engines to medical syringes. The company’s ElectroPuls systems are used for fatigue testing, which examines the behavior of materials under fluctuating or cyclic loads in the elastic regime. The E1000, E3000, and E10000 fatigue test systems are suited for biomedical/biomechanical research applications, and feature a wide dynamic performance range and low force characteristics. The all-electric systems use linear motor technology to eliminate the need for ball/lead-screws, and enable slow-speed static tests through to high-frequency dynamic tests at over 100 Hz.

Posted in: Application Briefs, Motion Control

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Computer and Displays Help Control and Maneuver Crew Transportation System

Space-qualified boards and subsystems Aitech Defense Systems Chatsworth, CA 888-248-3248 http://rugged.com/space-products The Boeing Company selected Aitech Defense Systems to provide space-grade products and services to support the Commercial Crew Transportation System (CCTS) and Crew Space Transportation (CST)-100 spacecraft, part of NASA’s Commercial Crew Program.

Posted in: Application Briefs, Articles, Aerospace

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CubeSat Launches With 3D-Printed Components

Windform XT 2.0 3D printing material CRP USA, LLC Mooresville, NC 704-660-0258 www.crp-usa.net A team of students from the University of Kentucky and Morehead State University developed the KySat-2 project, a 1U CubeSat that launched into orbit as part of NASA’s ElaNa IV mission from Wallops Flight Facility in Virginia.

Posted in: Application Briefs, Articles, Aerospace

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Implementing Color Machine Vision Inspection Systems

Color provides critical information that can improve the reliability of many machine vision inspection applications and make it possible to inspect many products that cannot be inspected in grayscale. Typical examples include ensuring that a tan rather than a taupe automotive interior component is installed, and checking the position of a black label on a black single-serving coffee cup.

Posted in: Application Briefs, Applications, Photonics

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Motion Solutions for Electric Expansion Valves

Expansion valves are flow-restricting devices present in any refrigeration system. The valve needle remains open during steady state of operation. The size of the opening, or position of the needle, is related to the pressure and temperature of the evaporator. When set and controlled properly, an expansion valve will keep the evaporator active throughout its operation.

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Hamburg Airport Relies on Drive Technology to Keep Bags Moving

Hamburg Airport in Germany handles nine million pieces of baggage every year. For the baggage handling staff, the reliability of the conveyor system and the prevention of faults are the highest priorities. The breakdown of even a single component of the system would result in a backlog and unacceptable delays.

Posted in: Application Briefs, Motion Control

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Servo Motors Help Launch Vehicles Optimize Fuel

Servo motors MICROMO (the FAULHABER Group) Clearwater, FL 800-807-9166 www.micromo.com Space Exploration Technologies (SpaceX) builds economical launch vehicles like the Falcon 9 to carry a range of payloads into orbit. One way to control cost is by optimizing fuel burned during launch to minimize waste. The SpaceX team ensures top performance with the help of a special fuel-trim valve, powered by servo motors from MICROMO. Rockets like the Falcon 9 and Falcon 1 at SpaceX burn a fuel known as RP-1, a highly refined form of kerosene that must be mixed with oxygen in order to burn. On the launch vehicle, 4" pipes run from tanks of RP-1 and liquid oxygen (LOX) to combine prior to entering the combustion chamber. RP-1 fuel won’t burn without oxygen, but as long as oxygen is present, the two do not need to be combined in a precise ratio. The problem is that if the ratio of LOX to RP- 1 varies from the optimum mix, either the oxygen will run out before the fuel, or the fuel before the oxygen. Once combustion stops, the material left becomes dead weight, turning from propellant to liability. To ensure this doesn’t happen, the fuel-trim valve adjusts the mixture in real time.

Posted in: Application Briefs, Articles, Aerospace

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