Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [faraday-cage]

Use this tag when the topic is related to shielding of sensitive electronic circuits where outside influences (whether electric or magnetic) may influence how they operate so must be eliminated.

1
vote
2answers
47 views

Testing the RF properties of an enclosure

I need to measure RF (cellular) blocking properties of an enclosure. Is there an off-the-shelf set of tools for doing this? I'm assuming a MHz signal generator and an oscilloscope with an antenna ...
1
vote
2answers
268 views

Grounding A Faraday Cage On The Seventh Floor

I am working on a project for my physics class to test the resistance of various flames. This will involve using a spark gap with high voltage and I am in the process of building a small Faraday Cage ...
6
votes
2answers
155 views

Digital Signal Cables Penetrating a RF Shielded Room

Disclaimer: I'm not a trained electrical engineer...I'm a recent Computer Science grad with about ten years experience as a RF test tech. I don't know everything, and to me, experience reigns supreme ...
0
votes
1answer
374 views

Will a cheap RFID reader work behind a 2mm aluminium sheet?

I'm building a information contact panel that will serve as a point of communication between employees and their company. Part of this process involves putting an ID card to the panel, so it can be '...
0
votes
0answers
77 views

RF Interference and Metal Enclosure

We have a product (optical detector), one client had an issue with false alarms due to their radios they use on site. Did some modifications, added a ferrite bead to the cable and put a driven guard ...
0
votes
4answers
2k views

Faraday cage with a RF WIFI router inside - does the electricity “evaporate”?

I have a Faraday Cage and inside there is a WIFI router whose RF I am trying to contain. The cage is made of aluminium mesh with hole sizes of 3 mm or so. What happens to the RF electricity coming ...
2
votes
1answer
509 views

ungrounded chassis shielding

I'm looking into whether an ungrounded metal box provides good/bad EM shielding. This thread seems like a definite "good", for reasons of the box acting as a faraday cage : How much shielding does an ...