An electrostatic discharge (ESD) question...
An electrostatic discharge (ESD) question...
(OP)
I have asked this question in onther forum with no luck, so I will try it here.
I inherited shock test equipment that is very crude, but the company has been using it for years. The vibrator is fasten to a patio paver and in turn sits in a wooden box full of sand. The wood, sand, and patio paver are insulators, can they generate a static charge; are they ESD safe? The vibrator is grounded, so I am not worried about "zaps", butI would rather be safe than sorry.
Your comments would be appreciated.
Thank you in advance.
Go Mechanical Engineering
Tobalcane
I inherited shock test equipment that is very crude, but the company has been using it for years. The vibrator is fasten to a patio paver and in turn sits in a wooden box full of sand. The wood, sand, and patio paver are insulators, can they generate a static charge; are they ESD safe? The vibrator is grounded, so I am not worried about "zaps", butI would rather be safe than sorry.
Your comments would be appreciated.
Thank you in advance.
Go Mechanical Engineering
Tobalcane
Go Mechanical Engineering
Tobalcane





RE: An electrostatic discharge (ESD) question...
If you are in an area where humidity is in the 10 - 25 percent range, there could be a risk that charges build up. But you can easily reduce that risk by adding some moisture to the sand and let it seep into the wood. You could also use conductive paint. Talk to 3M, they have lots of stuff for these things.
Gunnar Englund
www.gke.org
RE: An electrostatic discharge (ESD) question...
The area that it is in I think is humidiy controled, I have to look into that. But, do you know if the wood, sand, and pato paver is ESD safe? Do you know if the items can generate static?
Thanks again.
Go Mechanical Engineering
Tobalcane
RE: An electrostatic discharge (ESD) question...
As you can see, wood is neutral and not prone to building up any charge. There are several other sites that you can find if you google "triboelectricity" (that is what ESD and related things are called in academia).
Gunnar Englund
www.gke.org
RE: An electrostatic discharge (ESD) question...
Go Mechanical Engineering
Tobalcane
RE: An electrostatic discharge (ESD) question...
TTFN
RE: An electrostatic discharge (ESD) question...
Go Mechanical Engineering
Tobalcane
RE: An electrostatic discharge (ESD) question...
Im just thinking out loud...is it safe to say (according to Triboelectric Series) that the sand will charge up like glass?
Go Mechanical Engineering
Tobalcane
RE: An electrostatic discharge (ESD) question...
TTFN
RE: An electrostatic discharge (ESD) question...
You need gigaohms (1000 000 000 ohms) or more to have an ESD problem from the described setup.
Gunnar Englund
www.gke.org
RE: An electrostatic discharge (ESD) question...
Thanks for the information and thoughts on this matter.
If you want to add more comment, please do.
Go Mechanical Engineering
Tobalcane