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Measuring motion
Accelerometers are essential sensors found in a wide range of applications from consumer products to rigorous vibration testing. This article discusses the different technologies used to sense acceleration and the types of processes used to build the devices.
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What's new in COMSOL Multiphysics?
Key among new and updated features for COMSOL Multiphysics
3.3 are ready-made couplings between common physics,
an even more convenient user interface thanks to a
Model Tree, interactive meshing, merging components
to build models, the ability to handle CAD
assemblies, and gains toward fully automatic solver selection.
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Electric Replacement for Hydraulics!
Exlar's electric linear actuators deliver the force of hydraulics and the speed of pneumatics. The patented roller screw technology offers peak forces in excess of 40,000 lbf., speeds to 60 in/sec, and stroke lengths to 96 inches, all with the ease and reliability of servo control. Visit
Exlar online for more information.
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Hydrogen fuel cells power unmanned aerial vehicle
Georgia Institute of Technology researchers have conducted successful test flights of a hydrogen-powered unmanned aircraft believed to be the largest to fly on a proton exchange membrane (PEM) fuel cell using compressed hydrogen. The fuel-cell system that powers the 22-foot wingspan aircraft generates only 500 watts.
"That raises a lot of eyebrows," said Adam Broughton, a research engineer who is working on the project in Georgia Tech's Aerospace Systems Design Laboratory (ASDL).
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Testing Munchkins: Performance under pressure
Steve Asselin, a project manager and specialist in automated test measurement, came to Heat Transfer Products, Inc. of East Freetown, MA, with his initial assignment being to design a production line for one of the company’s most popular product lines, Munchkin water heaters. Asselin knew that the most important aspect of his job would take place during the final stages of assembly: the testing stage during which each boiler would be checked for its ability to literally perform under pressure.
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FAST Injection Molded Plastic Prototypes
Protomold® can turn your 3D CAD model into real plastic parts in as few as three days. Injection molded in your choice of engineering-grade resins, these plastic parts are ideal for functional testing, bridge tooling, or even short-run production. Visit
Protomold
online for more information and a free automated ProtoQuote®. Protomold. Nobody's Faster in the Short Run!
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New Products
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Guides
- Everything fasteners, everything Elgin — Elgin Fastener Group
- Simplified sizing/selection of hydraulic accumulators — Parker Hannifin Hydraulics
- Massive mega network I/O catalog — TURCK
View guides …
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