Welcome! Log In Create A New Profile

thermoplastics and wireless transmission

Posted by dslc

dslc

thermoplastics and wireless transmission
July 30, 2011 12:32PM

Registered: 17 years ago
Posts: 137

Say I wanted to use a 36 kHz infra-red receiver for a project, and wanted to enclose the receiver in a mini-channel to limit its field of view. Could PLA or ABS be used to accomplish this? i.e. could it block wireless signals around that frequency? Would it depend on the colour?

Reply Quote

VDX

Re: thermoplastics and wireless transmission
July 30, 2011 05:04PM

Admin
Registered: 16 years ago
Posts: 13,888

dark/black plastics are good for shielding NIR ... 'wireless signal' is mostly used for radio frequencies (often around 2,44 GHz), what's shielded with conductive materials ...

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

Reply Quote

dslc

Re: thermoplastics and wireless transmission
August 03, 2011 01:39PM

Registered: 17 years ago
Posts: 137

Ok - thanks for picking up on my sloppy terminology.

Anyway, I'll probably try this once/if I get a reprap up and running.

david

Reply Quote

MarcusWolschon

Re: thermoplastics and wireless transmission
August 30, 2011 09:38AM

Registered: 14 years ago
Posts: 573

infra-red should be like 600GHz-430 THz, very far from your 36 kHz.
36 kHz would be sound waves.
Typo?

-------------------------------------------
* homeprototype free 3d design repository
* Blog
* Google+

Reply Quote

Greg Frost

Re: thermoplastics and wireless transmission
August 30, 2011 10:00AM

Registered: 13 years ago
Posts: 486

36 kHz is a common modulation freq for IR signals (as is 48 kHz).

Reply Quote

MarcusWolschon

Re: thermoplastics and wireless transmission
August 30, 2011 10:07AM

Registered: 14 years ago
Posts: 573

Thanks

-------------------------------------------
* homeprototype free 3d design repository
* Blog
* Google+