I worked on the battery charger for the Peacekeeper missle in Minuteman silo. There are two battery systems; megga lead acid traction batteries and lithium primaries. The battery charger had .1 farad capictor which required discharge in 30 sec to less that 30 V and the circuit had to be redundant. If the drawer is pulled out for maintenance the caps are discharged so as to not shock and possibly kill someone. In the lab we are doing reseach to make sure we have met all the specs. We have a device to defeat the micro switch that completes the circuit when the drawer is pulled out. We installed the ciruit and defeat test aid. I left for the weekend knowing there would be testing. So the last words to the other engineer and tech was Don't forget the interlock defeat. I got in Monday morning and did I ever hear about it. They forgot. The four wire wound resisters blew like dynamite. There was white powder over everything from the ceramic core. And the wire sprange out of each of the Al houseings of the resisters. No one forgot after that.
I agree William L Weaver, it was the manned space program, specifically Neil Armstrong and Buzz Aldrin, walking on the moon that made me want to be an engineer. I was 5 in July 1969, and I caught the Apollo bug bad. I knew that we could send men to the moon, then we could do anything.
I have the opportunity to manufacture product that is used by emergency crews when they need to help people. It is a great feeling to see a firefighter using one of your chainsaws to help people in need.
I like finding simple solutions to complex problems, whether it be a circuit with a handful of components or a fragment of code that only requires a few lines. As Engineers we tend to over-design so I really love it when a simple solution can be found.
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
In a world that's going green, industrial operations have a problem: Their processes involve materials that are potentially toxic, flammable, corrosive, or reactive. If improperly managed, this can precipitate dangerous health and environmental consequences.
With LEDs dropping in price virtually every year, automakers have begun employing them, not only on luxury vehicles, but on entry-level models, as well.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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