Re: EMC of sticky tape....

"Ed Price" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> "Mike Harrison" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > Just noticed an interesting phenomenon today.. I was watching a fairly
>  weak TV signal, while taping
> > up a  parcel with a handheld tape dispenser - when I pulled some tape off
>  the roll, I saw
> > interference on the TV picture, presumably due to static discharge.
> >
> > How long before we see a mandatory emissions standard for adhesive
> tapes.....?
> 
> In the world of ESD control, the triboelectric effect you just saw is a
> common problem. There are special tapes available for production
> environments that minimize this effect. Beyond that, you can also get ESD
> effects from things like rattling the keys or coins in your pocket.
> 
> Since there are so many ways to create ESD events, it's a good idea to
> harden electronic devices to withstand a certain level of ESD. And I believe
> that EN61000 has a section that addresses exactly that.
> 
> Ed

Doug Smith, fairly well known in United States EMC circles, has a
demonstration showing that a few coins in a plastic "baggie" can
generate a lot of esd effects.  In a totally dark room, you can even
get a ffluorescent light to flicker.

H. R.(Bob) Hofmann