IR Absorbent Material

Inside the Roomba and Scooba and more, Cool mods, Repair and Upgrades - including the all new iRobot Create Kit. Let's void that warranty baby!

IR Absorbent Material

Postby glnc222 » February 2nd, 2016, 7:27 pm

This type of expensive IR material is absorbent, not reflective. Unlike common materials, it can fool the cliff/drop sensors of robots, and make "keep off", "keep out" boundary markers using the optical cliff sensors. Too expensive to be practical, compared to magnetic strips used with Neato Robotics. Shows what is really needed to fool those sensors compared to visibly black ordinary textiles etc.
http://www.ebay.com/itm/330970582002?_trksid=p2057872.m2749.l2649&var=540318368425&ssPageName=STRK%3AMEBIDX%3AIT
Last edited by glnc222 on February 23rd, 2016, 8:30 pm, edited 1 time in total.
glnc222
Robot Master
 
Posts: 4370
Joined: January 23rd, 2012, 9:19 pm
Location: North Carolina, U.S.

Re: IR Aborbent Material

Postby CleanMe » February 23rd, 2016, 1:27 pm

Here's another possibility. Matte black photofoil (or cinefoil) is inexpensive and might be useful for boundary markers. It's claimed to be light absorbing for use in photography when stray light needs to be contained. Supporting that claim, one review on Youtube said it can be used by photographers to reduce the brightness of adjacent items or surfaces.

Youtube videos show slight reflections when the material is wrapped around very bright photography lights, but maybe the material will absorb enough light to fool the cliff/drop sensors of robots. The material is heavy aluminum foil that can be cut or molded to suit your needs. I searched but couldn't find a reference to this material on Robotreviews.

Cost: Less than $20 including shipping, for a roll 12 inches x 10 feet.

https://www.rosco.com/FTVP/cinefoil.cfm
http://amzn.com/B005NEJ13A
CleanMe
Robot Addict
 
Posts: 162
Joined: August 7th, 2010, 12:30 am

Re: IR Absorbent Material

Postby glnc222 » February 23rd, 2016, 8:35 pm

The IR spectrum characteristics are not known, and visibly black is not indicative. Need a smaller piece at less cost for testing. Matte black paint even made for IR absorption does not work, unless very expensive. (Except on Roomba's which seem to have unusual proprietary IR sensors, probably made for other, military products where they work for different applications.)
glnc222
Robot Master
 
Posts: 4370
Joined: January 23rd, 2012, 9:19 pm
Location: North Carolina, U.S.

Re: IR Absorbent Material

Postby BeinerF » June 9th, 2017, 3:09 am

This might be an option.
https://youtu.be/hulHqX9UJYI
The coating is a nano-x product.
See last entry in the following PDF
https://www.nano-x.com/app/download/749 ... 4rz%202015)%20English.pdf?t=1455704798
BeinerF
 
Posts: 1
Joined: June 9th, 2017, 2:58 am


Return to Robotic Hacking

Who is online

Users browsing this forum: a1robotrepair, Gilthorx and 432 guests