01 February 2018 - Infra Red camera comparison
It is great to have a decent infra-red camera to do 'proper' thermal imaging surveys (and it would be nicer to have a selection), but these cameras are expensive and therefore if not specifically doing an infra-red survey we tend not to bring it to other survey and test types.
But it would be nice to have one to hand. Therefore, we bought a CAT S60 phone with inbuilt basic flir camera. That was nice, but didn't quite fit all the things we would have like from even a simple camera. So we bought the Seek Reveal Pro also!
Below are what we have found to be some of the pro's and con's of these cheaper but still handy cameras - a mini review of the CAT S60 and SEEK Reveal Pro.
|CAT S60||SEEK Reveal Pro||'Good Cameras'|
|Price||€600 to €700||€600 to €700||Probably over €5000 for 'good cameras'|
|Resolution||60x80||320x240 ✔||Min 320x240|
|Visible image||Yes, takes a visible image at the same time, can be accessed using the flir tools. ✔
Careful - the resolution is poor.
|none||May or may not, depending on the model|
|Software||Works with Flir tools, so quite good ✔||None - the pic you take is the pic you have, as a png, not modifiable|
|Start up||Reasonable - but if you have a pin on your phone, you need to unlock, start flir... might take 20secs to get the first image. You may even have had the device off, as we often do, to conserve battery, so that adds about 30 seconds start-up. And if you were rushing you may have pressed a different icon than the flir icon||Even from dead start, image can be taken in just about 5-6 seconds ✔|
|General Notes||Really wanted to get this as a back up to not just the main camera but also as a phone, if it was ever needed. Have not used the other functions, it is basically a hardy but otherwise middle of the road android smart phone. The visible image camera is mediocre. Some more points:
|| This device just feels really good in the hand. The face-up screen is very handy, and the LED torch on it is absolutley excellent, and continues to work even if the power has drained too much for the camera to operate. Some other points:
Below are some direct comparison images with our 'good' camera at its standard 320x240 resolution, and the SEEK Reveal Pro, and the CAT S60 set to 320x240. See what you think yourself. The visible images are those taken with the CAT S60 at the same time as the thermal image for that camera.
|Impac Thermotracer 7700||SEEK Reveal Pro||CAT S60|
30 January 2018 - 2017 in Airtightness
Just for interest: the best and worst tests of the year in 2017. Unlike the other years, I will add a bit of context here.
|Best Air Permeability test||Worst Air Permeability tested
|Worst Air Permeability tested
|2||0.31 (4 times)||7.94||14.13|
|Notes|| 1 - both semi-d spec build timber frame house
2 - 2 semi D spec build timber frame,
1 timber frame self build
1 block built, wet plastered self build
3 - both semi-d spec build timber frame house
| 1 - office building (roof not properly sealed)
2 - Penthouse apartment
3 - Infill site, block build
| 1 - block built house, ca year 2000
2 - extensive renovation of ca 1960's house,
preliminary as works underway
3 - timber frame - ca year 2010
The readings are in m3/hr.m2.