Thermal photography
thermal-photography

Thermal infrared cameras are designed to take photos or videos of heat (not to be confused with [near infrared cameras](/wiki/multispectral-imaging)). Some of these are tuned specifically for gases, and can be used to image #methane. ## Applications Thermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Specific models of FLIR brand cameras, known as the FLIR GasFinder (http://www.flir.com/ogi/display/?id=55671). See [GasFinder](#gas+finder) below for more. Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the [Gowanus Canal](/place/new-york-city). ## Questions [questions:thermal-photography] *** ## DIY Approaches There are three Do-It-Yourself prototypes in development to try to do this more cheaply than the off-the-shelf options. These projects were started a few years ago and may not be active: * A **[Thermal Flashlight](/wiki/thermal-flashlight)**: a RGB LED flashlight with a non-contact infrared sensor that "paints" the temperature of the surface directly on the wall for capture with a second timelapse camera. * A [Thermal Fishing Bob](/wiki/thermal-fishing-bob): dragging a thermometer through the water, taking contact measurements mapped to a RGB light, also for capture with a second timelapse camera. * A [scanning thermal camera](/wiki/scanning-thermal-camera) on a LEGO turntable (software also in development) that sweeps back and forth across a scene, recording the temperature variation to build up an image. ## Problem Why make a DIY version? "FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. The goal of these DIY thermal camera projects is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets. **** ## Activities [activities:thermal-photography] ...


Author Comment Last activity Moderation
loganw "Cool! I was thinking about attaching a peltier cooler to it. I can't find much info on what that does to a thermopile sensor though, since they bas..." | Read more » almost 8 years ago
mathew "I found this handy thermoelectric cooler module calculator: http://tetech.com/peltier-thermoelectric-cooler-module-calculator/ " | Read more » almost 8 years ago
mathew "great to see these initial assumptions! and awesome work on finding both a low-cost sensor and a low-cost filter. The FLIR Lepton thermal images a..." | Read more » almost 8 years ago
John_Wells "Rather than hire one for a limited period, it would be much better to own one (or more) cooperatively. " | Read more » almost 8 years ago
John_Wells "Here are the phone compatibility requirements: http://www.flir.com/flirone/android/#androidCompatibility Minimum Requirements: 'At least Android V..." | Read more » almost 8 years ago
warren "I wonder if Home Depot or other big-box hardware stores rent these as they used to (and maybe still) rent lower-resolution thermal imagers -- it us..." | Read more » almost 8 years ago
John_Wells "Outflows would not be a problem, as the imager is sensitive down to a difference in temperature of 0.1°C. It will also pick up developing faults/ov..." | Read more » almost 8 years ago
cfastie "It still seems a little expensive to fly a thermal imager, but the FLIR One is US$250 and needs more or less any old smartphone. So it's not too ba..." | Read more » almost 8 years ago
eustatic "very cool, I've been curious about flying with the updated FLIR for smartphones, but haven't had the budget. Local levee authorities have been ask..." | Read more » almost 8 years ago
switchmod3 "Hi @ajawitz, Do you happen to have a binary dump of the EEPROM that's on the Radio Shack pocket IR thermometer? My unit is spitting out an "Er 5" ..." | Read more » almost 9 years ago
ajawitz "I've been slowly building a "buoyancy-driven underwater glider" robot, as an extension of the thermal fishing bob concept. It now has a dedicated ..." | Read more » almost 9 years ago
lperovich "Nice tests! A few comments: Good catch on the 3.3V/GND errors in the diagram. Here's the updated image: "The input code and the LED code need..." | Read more » about 9 years ago
warren "Oops, digispark: http://digistump.com/products/1 " | Read more » about 9 years ago
warren "Hi, just wanted to confirm that you're using multiple thermistors to get multiple depth measurements, and not to speed up your temperature readings..." | Read more » about 9 years ago
nshapiro "Here is some alternative tech to the FLIR-- hyperspectral camera for methane visualization (which is one of the most expensive gases to monitor). M..." | Read more » over 9 years ago
warren "So, does priority date allow them to back-date the effective date of their patent to before we independently published? I guess I thought "first to..." | Read more » over 9 years ago
lmc6399group "@cfastie We would probably add a gradient of colors (in the code) to indicate more varied temperatures than just hot/cold. Given how close we have ..." | Read more » over 9 years ago
mathew " " | Read more » over 9 years ago
cfastie "This is the best story ever of jumping into a Public Lab tool and making it better. This great video should be embedded in the research note above:..." | Read more » over 9 years ago
gbathree "I'm also very curious to see how this progresses. " | Read more » over 9 years ago
warren "Here are some potentially helpful notes from OSHWA: http://www.oshwa.org/2013/12/05/open-hardware-legal-meetup-nyu-nov-11/ " | Read more » over 9 years ago
donblair "I myself am really curious about this issue in general, especially as I dive more into developing open environmental monitoring hardware :) Maybe ..." | Read more » over 9 years ago
mathew "Well, I saw the device and did a patent search for Black & Decker-assigned patents and thermal sensing-- it didn't take too long. does their c..." | Read more » over 9 years ago
sara "Interesting Matt, how did you find out about their patent? I wonder if the Berkman Center for Internet and Society would be interested in discussin..." | Read more » over 9 years ago