On Thu, 11 Jan 2024 23:04:41 +1100, Chris Jones <lugnut808@spam.yahoo.com> wrote:>On 11/01/2024 6:02 am, Phil Hobbs wrote: >> On 2024-01-10 10:56, John Larkin wrote: >>> On Wed, 10 Jan 2024 14:59:28 +0000, manta103g@gmail.com (darius) >>> wrote: >>> >>>> Single point thermal imaging camera made of infrared thermometer >>>> >>>> Let me know your opinion and experience >>>> since high resolution thermal imaging cameras are still expensive >>>> so I plan to build a single point thermal imaging camera supported by >>>> mosaics scanning mechanics >>>> to get high resolution thermal imaging >>>> >>>> >>>> >>>> thank you >>> >>> A single-point sensor will probably be big so have poor spatial >>> resolution. And scanning will be very slow. >>> >>> Amazon has 256x192 thermal imager cameras, all done, starting around >>> $250. They probably don't focus close enough for electronics but that >>> could be fudged. Some software image enhancement might be possible. >>> >>> We have two FLIRs. One was very expensive and has a huge >>> adjustable-focus germanium lens. It's fabulous for scoping >>> electronics. >>> >>> Lens: >>> >>> https://www.dropbox.com/s/uda77g9w66x3u9f/Flir_E45_WA_Lens.JPG?raw=1 >>> >>> Dual NPN transistor, obviously not monolithic: >>> >>> https://www.dropbox.com/s/dd072w1z2gmfpbt/Dual_NPN.jpg?raw=1 >>> >>> PCB inner-plane short: >>> >>> https://www.dropbox.com/s/rxk5dd8i6gr74nq/PCB_Short.jpg?raw=1 >>> >>> (A bunch of amps burned that away.) >>> >>> >>> Our other IR imager was a gift from FLIR, a smaller fixed-focus thing, >>> pretty much useless for electronics: >>> >>> https://www.dropbox.com/scl/fi/6qrx4yyy63gxw5jec1rwa/BT3.JPG?rlkey=q9eb551ur73h5qucgyrck9tsi&raw=1 >>> >>> I'd like to have a small handheld imager, but it needs to focus up >>> close, which most don't do. >>> >> >> We have a FLIR-1, which attaches to a smartphone and works pretty well >> for troubleshooting boards.� It tries to get better resolution by >> combining the lowish-resolution IR image with a strongly edge-enhanced >> image from the phone camera, and then dorks the alignment to reduce the >> parallax effect. >> >> It was about $400 a year or two ago. >> >> Cheers >> >> Phil Hobbs > > >This one is interesing: > >https://www.youtube.com/watch?v=k4JajqJxxIc > >it seems to have a much higher frame rate than my Flir E4 (hacked into >an E8) which is limited to 9 frames per second I think to avoid being >subject to export controls.How close can it focus? Enough to resolve small parts on a board?
Single point thermal imaging camera made of infrared thermometer
Started by ●January 10, 2024
Reply by ●January 14, 20242024-01-14
Reply by ●January 16, 20242024-01-16
On 15/01/2024 8:30 am, John Larkin wrote:> On Thu, 11 Jan 2024 23:04:41 +1100, Chris Jones > <lugnut808@spam.yahoo.com> wrote: > >> On 11/01/2024 6:02 am, Phil Hobbs wrote: >>> On 2024-01-10 10:56, John Larkin wrote: >>>> On Wed, 10 Jan 2024 14:59:28 +0000, manta103g@gmail.com (darius) >>>> wrote: >>>> >>>>> Single point thermal imaging camera made of infrared thermometer >>>>> >>>>> Let me know your opinion and experience >>>>> since high resolution thermal imaging cameras are still expensive >>>>> so I plan to build a single point thermal imaging camera supported by >>>>> mosaics scanning mechanics >>>>> to get high resolution thermal imaging >>>>> >>>>> >>>>> >>>>> thank you >>>> >>>> A single-point sensor will probably be big so have poor spatial >>>> resolution. And scanning will be very slow. >>>> >>>> Amazon has 256x192 thermal imager cameras, all done, starting around >>>> $250. They probably don't focus close enough for electronics but that >>>> could be fudged. Some software image enhancement might be possible. >>>> >>>> We have two FLIRs. One was very expensive and has a huge >>>> adjustable-focus germanium lens. It's fabulous for scoping >>>> electronics. >>>> >>>> Lens: >>>> >>>> https://www.dropbox.com/s/uda77g9w66x3u9f/Flir_E45_WA_Lens.JPG?raw=1 >>>> >>>> Dual NPN transistor, obviously not monolithic: >>>> >>>> https://www.dropbox.com/s/dd072w1z2gmfpbt/Dual_NPN.jpg?raw=1 >>>> >>>> PCB inner-plane short: >>>> >>>> https://www.dropbox.com/s/rxk5dd8i6gr74nq/PCB_Short.jpg?raw=1 >>>> >>>> (A bunch of amps burned that away.) >>>> >>>> >>>> Our other IR imager was a gift from FLIR, a smaller fixed-focus thing, >>>> pretty much useless for electronics: >>>> >>>> https://www.dropbox.com/scl/fi/6qrx4yyy63gxw5jec1rwa/BT3.JPG?rlkey=q9eb551ur73h5qucgyrck9tsi&raw=1 >>>> >>>> I'd like to have a small handheld imager, but it needs to focus up >>>> close, which most don't do. >>>> >>> >>> We have a FLIR-1, which attaches to a smartphone and works pretty well >>> for troubleshooting boards. It tries to get better resolution by >>> combining the lowish-resolution IR image with a strongly edge-enhanced >>> image from the phone camera, and then dorks the alignment to reduce the >>> parallax effect. >>> >>> It was about $400 a year or two ago. >>> >>> Cheers >>> >>> Phil Hobbs >> >> >> This one is interesing: >> >> https://www.youtube.com/watch?v=k4JajqJxxIc >> >> it seems to have a much higher frame rate than my Flir E4 (hacked into >> an E8) which is limited to 9 frames per second I think to avoid being >> subject to export controls. > > How close can it focus? Enough to resolve small parts on a board? >https://youtu.be/phYknDDeWb8?t=474
Reply by ●January 21, 20242024-01-21
On Tuesday 16 January 2024 at 13:13:32 UTC, Chris Jones wrote:> On 15/01/2024 8:30 am, John Larkin wrote: > > On Thu, 11 Jan 2024 23:04:41 +1100, Chris Jones > > <lugn...@spam.yahoo.com> wrote: > > > >> On 11/01/2024 6:02 am, Phil Hobbs wrote: > >>> On 2024-01-10 10:56, John Larkin wrote: > >>>> On Wed, 10 Jan 2024 14:59:28 +0000, mant...@gmail.com (darius) > >>>> wrote: > >>>> > >>>>> Single point thermal imaging camera made of infrared thermometer > >>>>> > >>>>> Let me know your opinion and experience > >>>>> since high resolution thermal imaging cameras are still expensive > >>>>> so I plan to build a single point thermal imaging camera supported by > >>>>> mosaics scanning mechanics > >>>>> to get high resolution thermal imaging > >>>>> > >>>>> > >>>>> > >>>>> thank you > >>>> > >>>> A single-point sensor will probably be big so have poor spatial > >>>> resolution. And scanning will be very slow. > >>>> > >>>> Amazon has 256x192 thermal imager cameras, all done, starting around > >>>> $250. They probably don't focus close enough for electronics but that > >>>> could be fudged. Some software image enhancement might be possible. > >>>> > >>>> We have two FLIRs. One was very expensive and has a huge > >>>> adjustable-focus germanium lens. It's fabulous for scoping > >>>> electronics. > >>>> > >>>> Lens: > >>>> > >>>> https://www.dropbox.com/s/uda77g9w66x3u9f/Flir_E45_WA_Lens.JPG?raw=1 > >>>> > >>>> Dual NPN transistor, obviously not monolithic: > >>>> > >>>> https://www.dropbox.com/s/dd072w1z2gmfpbt/Dual_NPN.jpg?raw=1 > >>>> > >>>> PCB inner-plane short: > >>>> > >>>> https://www.dropbox.com/s/rxk5dd8i6gr74nq/PCB_Short.jpg?raw=1 > >>>> > >>>> (A bunch of amps burned that away.) > >>>> > >>>> > >>>> Our other IR imager was a gift from FLIR, a smaller fixed-focus thing, > >>>> pretty much useless for electronics: > >>>> > >>>> https://www.dropbox.com/scl/fi/6qrx4yyy63gxw5jec1rwa/BT3.JPG?rlkey=q9eb551ur73h5qucgyrck9tsi&raw=1 > >>>> > >>>> I'd like to have a small handheld imager, but it needs to focus up > >>>> close, which most don't do. > >>>> > >>> > >>> We have a FLIR-1, which attaches to a smartphone and works pretty well > >>> for troubleshooting boards. It tries to get better resolution by > >>> combining the lowish-resolution IR image with a strongly edge-enhanced > >>> image from the phone camera, and then dorks the alignment to reduce the > >>> parallax effect. > >>> > >>> It was about $400 a year or two ago. > >>> > >>> Cheers > >>> > >>> Phil Hobbs > >> > >> > >> This one is interesing: > >> > >> https://www.youtube.com/watch?v=k4JajqJxxIc > >> > >> it seems to have a much higher frame rate than my Flir E4 (hacked into > >> an E8) which is limited to 9 frames per second I think to avoid being > >> subject to export controls. > > > > How close can it focus? Enough to resolve small parts on a board? > > > https://youtu.be/phYknDDeWb8?t=474Thank you for mentioning the InfiRay P2 Pro. I have been wanting to buy a thermal IR camera for some time and this seemed a good trade-off between cost, size, performance and features. I got the Android version with close-up lens. It really is very nice! I bought it from Amazon (with a ~10% promotional discount) because I wanted it next day, not next month. Buying direct from China would have been considerably cheaper, but shipping times to the UK are quite long at the moment and of course there is more hassle if there is a problem. John
