HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/4  >  >>
Rob Spiegel
User Rank
Blogger
Re: One static charge after another
Rob Spiegel   6/11/2013 9:46:31 PM
NO RATINGS
Thanks TJ. I look forward to seeing them.

econobiker
User Rank
Iron
Re: One static charge after another
econobiker   6/10/2013 2:16:35 PM
NO RATINGS
nichollr wrote:

"I've noticed at our local Walmart that as I push some of the carts, I get a static discharge through my hands.  It's really uncomfortable.  Have other's noticed this same problem?"

Often you will see some versions of  shopping carts with a discharge strap or small chain hanging down rubbing the ground.  This also seems to be a greater problem with the newer plastic carts than the older metal carts... There has been alot of info about this problem with a specific retailer which you can find by searching: Wal-mart shopping cart static electricity shock.

John E
User Rank
Silver
Re: One static charge after another
John E   6/7/2013 6:25:48 PM
NO RATINGS
I once worked for a contract ICT test house developing test programs and fixtures.  Our test head (HP3065) and debug bench was in a "static controled" room with a disapative carpet.  One day durring the winter, I walked accros that rug, reached down into the empty patch bay of the test head and drew a 1" arc to one of the test card connections; it hurt like heck and I jumped back.  I immediatley grabed the diagnostics fixture, and found that we had a dead analog card.  It took two day of down time for HP to find the problem and get us a replacement card.  So much for the anti static carpet.  We got a lot more serious about wrist staps after we learned that we could not rely on the carpet any more.

Rob Spiegel
User Rank
Blogger
Re: One static charge after another
Rob Spiegel   6/7/2013 5:56:12 PM
NO RATINGS
Hey, 3Drob,

I'd like to use this story as a Made by Monkeys blog. 

You can send it along to rob.spiegel@ubm.com

Thanks.

Rob Spiegel
User Rank
Blogger
Re: Painful excersize
Rob Spiegel   6/7/2013 5:52:59 PM
NO RATINGS
Hey, g-wiz, this would make a good Sherlock Ohms posting. Could you send it along with a bit more detail -- to fill out the length -- and include a short two- to four-sentence bio?

You can send it to rob.spiegel@ubm.com

dbues
User Rank
Gold
Re: I guess not every company focuses on ESD
dbues   6/7/2013 6:45:16 AM
NO RATINGS
JimT, thanks for the feedback!!!  Comes from having an English teacher for a Mom....

dbues
User Rank
Gold
Re: One static charge after another
dbues   6/7/2013 6:43:58 AM
NO RATINGS
3drob, I know what you mean.  We had a guy years back that used to flick his cigarette ashes into our chassis.  Drove QA nuts!!!  He's the same guy that designed everything with discrete J-K flip flops.

 

Everybody assumed he was a genius because all his designs worked, but nobody understood them.  Luckily for me, he left before I had to debug anything he designed.

dbues
User Rank
Gold
Re: ESD discharge
dbues   6/7/2013 6:40:30 AM
NO RATINGS
Thanks for the tip, Frank.  I'm trying it now.

Ralphy Boy
User Rank
Platinum
Re: One static charge after another
Ralphy Boy   6/6/2013 10:55:01 PM
NO RATINGS
Yeah 3drob... We get that too sometimes. I've been told by one EE that he's never zapped a board... 'Yet' is what I replied.

We have below 1% humidity in the dryrooms and an over active air exchange in one of those creates a bit of a breeze too. We do a good job of maintaining boot straps, wrist straps, ESD Lab coats as SOP in those... and we still get the occasional fire, so far though those always seem to be non-static events. Friction; go figure.

etmax
User Rank
Gold
Re: Modern ESD Testing
etmax   6/6/2013 10:16:12 PM
NO RATINGS
Hi Jim,


I read William K's reply and his point really suggests that as consumers we should only buy CE marked products which actually MUST go through this testing to be allowed to apply the logo. That way the shonky operators cease to sell products and we all benefit. The purpose of the CE mark was to lift product quality to a minimum standard deemed necessary for the application. In the EU it's enforced and placing a CE mark without complying results in fines and worse a need to remove the mark. Designing for ESD places some real challenges on the designer adding great skills and improving employment prospects (at least where it's mandatory :-) ).

<<  <  Page 2/4  >  >>


Partner Zone
Latest Analysis
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team 100 to make (about $161 US).
At Medical Design & Manufacturing Midwest, Joe Wascow told Design News how Optimal Design prototyped a machine that captures the wing-beat of a duck.
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service