lumen aeternum
Enlightened
- Joined
- Sep 29, 2012
- Messages
- 890
from 2012. I cannot find the actual instructions though
https://www.newscientist.com/article/mg21328546-200-thermal-flashlight-paints-cold-rooms-with-colour/
snip
, the thermal flashlight prototype costs about $40. What's more, it can easily be assembled by someone with no electronics expertise. To prove how easy it is, visitors to the Citizen Cyberscience Summit in London last month were shown how to build their own devices by fastening probes and wire to a circuit board. They used recycled VHS cases to house their creations.
"The thermal flashlight can be easily assembled by someone with no electronics expertise"
The thermal flashlight is built around a single infrared thermometer. This scans an area of wall and picks up varying levels of radiation emanating from it. This temperature information is fed into a microprocessor, which controls a multicoloured LED light. Shine the flashlight against a surface and the colour shows you a real-time temperature reading. Areas of the wall with a cooler temperature show up blue, while red light shines on patches that register as warmer. An image of the light-painted room showing exactly where heat is leaking can then be captured using a webcam with an online app called Glowdoodle or just standard time-lapse photography.
The team hopes that such pictures can be used to confront landlords who are not insulating their apartments sufficiently. In New York, for example, landlords must make sure their apartments are at 20 °C if the outdoor temperature falls below 12.8 °C between 6am and 10pm.
snip
https://www.newscientist.com/article/mg21328546-200-thermal-flashlight-paints-cold-rooms-with-colour/
snip
, the thermal flashlight prototype costs about $40. What's more, it can easily be assembled by someone with no electronics expertise. To prove how easy it is, visitors to the Citizen Cyberscience Summit in London last month were shown how to build their own devices by fastening probes and wire to a circuit board. They used recycled VHS cases to house their creations.
"The thermal flashlight can be easily assembled by someone with no electronics expertise"
The thermal flashlight is built around a single infrared thermometer. This scans an area of wall and picks up varying levels of radiation emanating from it. This temperature information is fed into a microprocessor, which controls a multicoloured LED light. Shine the flashlight against a surface and the colour shows you a real-time temperature reading. Areas of the wall with a cooler temperature show up blue, while red light shines on patches that register as warmer. An image of the light-painted room showing exactly where heat is leaking can then be captured using a webcam with an online app called Glowdoodle or just standard time-lapse photography.
The team hopes that such pictures can be used to confront landlords who are not insulating their apartments sufficiently. In New York, for example, landlords must make sure their apartments are at 20 °C if the outdoor temperature falls below 12.8 °C between 6am and 10pm.
snip
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