Products > Thermal Imaging

Infiray C210 Thermal Camera review

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frankvh2:
Getting us back on the C210 track....

The latest software link that was posted, v1.16.  My Chinese is very limited  :-DD  I ended up with a download named "DeliveryTool". Is that correct?

Thanks.

wavepax:
Yesterday I installed the Infiray Thermographic Analysis Software on a Windows 7 x64 PC and a Windows 10 PC.   For Windows 7, I received an error message.   I sent the below email yesterday and received a reply today that fixed the error.   Attached is a dll file needed to fix the error.   No error when installing on a Windows 10 PC, but the interface comes up in Mandarin.   Clicking the globalT icon at the top gives the option to switch to English.

By the way, seeing the spirit of others helping each other in this thread inspired me to register and post here to inform and help others.   This is my ZeroPoster electrical engineer Internet good deed for the day.

Before seeing this thread, I ordered a C200 along with 10cm focal length lens from the same place that you all linked to in this thread.   That focal length, along with the field of view of the C200, is good enough to put all the pixels on a 10cm x 10cm circuit all at once into focus.   

I've been waiting decades for an affordable thermal camera with good enough microbolimeter array resolution -- spatially (256×192 pixels), temperature (0.1C) and time (25 Hz frame rate) wise along with a dynamic temperature range of -20C to 550C (over two different gain settings).   THE NETD (noise equivalent temperature difference) is < 40mK.   Shipped to my door in the US, it was USD$298.    The C200 Pro has the same specs except better temperature resolution (0.04C) and timed photography.   I didn't see the C200 Pro price anywhere on Dec 15, 2021.   Perhaps it is sold on taubau, which pretty much restricts sales to China-phoned people, and the website is in Mandarin, requiring a Google translation.   

The next step up in spatial resolution, the M300, was priced at USD$3200 on Dec 15, 2021 and has 384x288 thermal pixels, variable focus to 10cm, slightly larger screen, but the same temperature resolution as the C200 (0.1C).  The T3S, a smartphone addon thermal camera, has 384x288 thermal pixel resolution and costs USD$800 + tax.

In addition to detecting shorts and failed components on a PCB (printed circuit board), the C200 is useful to detect gas leaks, like in the exhaust gas piping in a vehicle.   The C200 is good enough to see if insulation was installed correctly in the walls of houses and buildings.   Pointing the C200 at the ceilings and walls of my house shows the lower ceiling temperatures at the framing compared to the insulation between the framing.   Youtube has videos of the C200 being used to detect people and animals at night.   Latent hand print heat is easily detected as long as you have enough pixels to resolve at the viewing distance.

Be careful about some of the rebranded models on ebay.   Some look like the above C200, but actually are a C200K which restricts the temperature range to human skin surface temperature ranges and is designed to detect elevated temperature from an infection.

I am amazed that uncooled microbolimeter arrays can have such good temperature resolution.   Perhaps Dave can look into the physics and engineering and create a video explaining how these uncooled microbolimeter arrays achieve such low temperature resolution at low noise.   I'm guessing that they integrate in time to help lower the thermal noise.

________________________email

After installing any of the below versions of the Thermographic Analysis Software on my Windows 7 x64 PC,

IRPT_TAS_V114
IRPT_TAS_V115
IRPT_TAS_V116


I run the program

IRPT_TAS which links to "C:\Program Files (x86)\IRTools\IRPT_TAS_V116\IRay Camera Controller.exe"


and I receive the following error:

"The procedure entry point clReleaseDevice could not be located in the dynamic link library OpenCL.dll"

I get the same error message no matter which version of the software I install.

Please advise how to fix this.   I was able to install the same software on a Windows 10 machine, but I need it to run on a Windows 7 x64 PC.


_________________________ Reply email

Sorry for the trouble caused to you. I sent you a opencl.dll file ,please copy it to the IRPT root path.

Please find the attached file for your reference.

if have any other questions,please let me know.

best regards,
--------------
Martin                                                     
Technical Support Department                           

_________________________ My reply

Per your instructions, I placed the OpenCL.dll file into the IRPT root path.   The software now runs.   The interface was in Mandarin, but I clicked on the globeT icon at the top, and it had an option to switch to English.

When I exited the app, I received the following error:

"IRay Camera Controller.exe - Fatal Application Exit
Fatal Error"

After I closed the error message popup dialogue, the app seemed to close.  Please advise how to eliminate this error message.

Bill W:

--- Quote from: wavepax on December 15, 2021, 07:07:48 pm ---
I am amazed that uncooled microbolimeter arrays can have such good temperature resolution.   Perhaps Dave can look into the physics and engineering and create a video explaining how these uncooled microbolimeter arrays achieve such low temperature resolution at low noise.   I'm guessing that they integrate in time to help lower the thermal noise.


--- End quote ---

Temperature resolution and NETD are not the same.  A still frame can have quite high noise - ie standard deviation of data maybe 400mK.
Spot temperature readouts will certainly be averaged over at least 1 second - 25 frames - more likely 32 or 64 for computing simplicity.

Essentially each pixel is a thermistor hanging in a vacuum on thin legs.  The material might be silicon (A-Si) or Vanadium oxide (VOx).
VOx has a better response (resistance change per temperature change) but was less favoured for processing reasons so A-Si is still going with some suppliers.  All things being equal a VOx should be a better image, but the gains are usually spent on cheapening other parts like lenses or the detector pixel size.

When you focus a thermal scene on the pixels they change temperature very slightly, and so change resistance.
Each one is in turn connected to an R-C integrator opamp for one TV line, fed from a bias voltage and the resultant voltage that accumulates is read out, typically by a 14 bit ADC.

The difficulties are that the 'thermistors' are far from identical, nor are the R-C integrator op-amps, so there is a lot of fixed pattern with relatively little scene (more scene in a VOx than an A-Si).
That is where calibrations and some frame-level maths comes in.
Noise mainly comes from the sensor bias(es), the ADC biases, and the ADC quantisation.  There may also be some worse quantisation later on in the image maths, and in the display side.  However once displayed at video rates you have the human eye-brain averager working for you.


Bill

jmw:
Thinking of ordering one of these off Aliexpress for general use. Anyone know why UNI-T is selling a competitor's product through their store at a huge discount to the "official" price?

JacquesBBB:

--- Quote from: littleboot on September 29, 2021, 08:59:35 am ---
--- Quote from: jairbj on September 20, 2021, 01:45:57 am ---My macro lens has arrived.

Lens: https://www.aliexpress.com/item/32241074105.html
Diameter: 20mm
Focal Length: 50.8mm

I attached some images.

Also posted the build of my lens holder here:
https://www.thingiverse.com/make:968854

--- End quote ---
Thank you for creating the lens holder!, I will 3D print one for myself. Very nice design using the rubber bands :-+

--- End quote ---


Just to correct  some possible misunderstanding : jairbj did not create the model. He just printed it  and posted his print. He properly refers to the original
model https://www.thingiverse.com/thing:4901923 . It happens that I am the proud creator of this masterpiece, including the rubber bands holders :) 

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