One might comment about your own illiteracy. You might consider checking dictionary.com . That site will permit you to cite a word correctly and not appear short-sighted.
So, you are saying the power supply wasn't properly grounded and the output was float in reference to ground. Sounds like things were not properly installed and grounded. I don't go along with the Vandergraf garbage,
I agree, Rob. It's amazing that problems like this one ever get solved. This isn't just a glitch; it's a sub-system glitch, made even tougher to find because firmware was supposed to be the culprit.
You're lucky you were able to isolate it. I've seen many intermittent failures in the lab, which were impossible to reliability repeat, and thus diagnose. I suspect this is something that's very widespread, and accounts for a lot of in-the-field glitches.
Actually, the grounding precautions were not so much for the equipment, but for the safety of the developing prototypes and new product introductions.But the equipment is normally sitting right on the same bench as the product, which is the target of the precautionary measures. And yes, this was a recent practice used on manufacturing floors as late as last year when I was introducing a military computing device at a domestic OEM.
Wow, Jim. Is that type of restriction common these days? I would imagine there are ways to ground equipment that doesn't require personnel to wear such elaborate gear.
Boy does this bring back memories of grad school. We had an ultrafast-spectroscopy instrument that we assembled from $1.2 Million of lasers and fancy electronics equipment. In essence, our system was a very, very fast strobe light that would illuminate a repetitive chemical reaction at precisely the right time. We used a liquid nitrogen-cooled scientific CCD camera that would record the faint output signal viewed through a maze of optics and filters. We would darken the lab and use upwards of 20-min CCD exposures to collect the very faint signal. Every now and again our data would be extremely noisy and we would have to collect data again. After some major sleuthing, we discovered that one of the PCs on the far side of the lab running Windows3.0 had a screen saver consisting of a bouncing ball. All but the top 5% of the computer monitor was obscured by equipment and only when the image of the ball bounced near the top of the screen did the extra photons get entrained into our optics. I've disliked screen savers ever since...
UK-based Plastic Logic and French company ISORG have created what the pair tout as a first in flexible printed electronics: a large area, conformable, organic image sensor printed on plastic.
For 3D printing to make the jump from rapid prototyping to manufacturing, engineers will need to find easier ways to move products from their CAD screens to their printers.
Gigabit and PoE are two networking technologies moving ahead in tandem as industrial users power remote Ethernet devices such as IP security cameras at 1,000 Mbps over existing CAT5 cable.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
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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 ...
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.
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