Electronics > Projects, Designs, and Technical Stuff

Optically transparent electrical isolation of analog signal

(1/3) > >>

ricko_uk:
Hi,
what is the best solution to transfer with highest accuracy an electrical signal (0 to 5V - up to 30KHz) from outside a faraday cage to insode it?

1) I was wondering if there are optically-transparent RF-shielding materials and then use some optocoupling means?
2) maybe there are already ready-made module solutions?
3) magnetically couple? but I am looking for a good fidelity signal transfer...

Any suggestions?

Many thanks :)

mikeselectricstuff:
Fibre optic through a metal tube

tggzzz:
Digitise to whatever standard suits you, then use optical fibre to transmit the digits, reconstruct on the outside.

Since you didn't include a latency specification, you could also transfer the digits on paper or magnetic tape :)

ricko_uk:
thank you Mike,
nice idea about the optical fibre.
Any advantages using the tube over cutting a small round hole for the optical fibre into the enclosure? It would still leave that small area open, or am I missing something?

Thank you :)

mikeselectricstuff:
The tube just gives more isolation than a simple hole. bear in mind the hole may need to be big enough to get a connector through

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod