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Products => Thermal Imaging => Topic started by: madsbarnkob on July 04, 2020, 06:25:55 pm

Title: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: madsbarnkob on July 04, 2020, 06:25:55 pm

For as long as I have done electronics, I have dreamed about owning a thermal camera. Actually from my time in the army many years back I have dreamed about the huge thermal camera with cryo-cooled optics that we used for some anti-vehicle systems. Many times have I checked ebay and skipped the idea again, due to price.

My research showed me that there is a huge difference from the very cheap 8x8 pixel thermal cameras bare PCB modules, to the 32x32 handheld and up to the 160x120++ versions. The price seems to quadruple with the pixel count. I skipped looking at the smartphone versions as I wanted a stand alone model that was not dependant on a certain app and smartphone firmware to work.

In this video I am testing the HTi HT02D Thermal camera that I was able to get at 100$ on offer. This is not a paid/non-paid advertisement, my own money, test and conclusion.

Best bet to find these at a decent price is to run through ebay and send off a lot of "make offer" of 100$ on the 150-200$ auctions. But is it worth it? Lets find out!

https://www.youtube.com/watch?v=Rhn2QgQ4_f0 (https://www.youtube.com/watch?v=Rhn2QgQ4_f0)

Conclusion: You get thermal imaging with a fairly good temperature range that indicates precise enough to find the hottest chip on a PCB. Resolution and focal distance is not suited for small electronics, future improvements with a ZnSe laser lens for 4" focal distance will be an idea. Mis-alignment of thermal and normal camera is kind of a minor thing with the low resolution, but it is still a nuisance.

A future video will feature a teardown of the unit to see what sensor and electronics is used in this unit.

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Ultrapurple on July 06, 2020, 08:38:03 am

Quote from: madsbarnkob on July 04, 2020, 06:25:55 pm

The price seems to quadruple with the pixel count.

I've been looking at this for some time and if you divide the cost of a camera by the number of pixels you get a surprisingly straight line (certainly once you cross the 160x120 threshhold).

There are obvious reasons for divergence - a high-end, calibrated camera with exquisite optics will be correspondingly more expensive - but, by and large, expect to pay something like 1 to 1.5 US cents per pixel. (As resolution increases the cost per pixel reduces slightly).

By my calculation a 1280x960 uncooled LWIR camera should cost about $12,000. We can but hope.

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Vipitis on July 06, 2020, 02:53:22 pm

I guess nobody really had the motivation to build the spreadsheet and run the price analysis.

I will let you know what the price for 1920x1200 (https://www.sierraolympic.com/products/details/vayu-hd) pixels is - should I hear back from Sierra Olympic.

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Ultrapurple on July 07, 2020, 11:40:56 am

The video quality from those Sierra Olympic cameras looks stunning.

When I win the lottery...

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Lord of nothing on July 14, 2020, 06:26:22 pm

I put this in the room: https://www.hikvision.com/en/products/Thermal-Products/ (https://www.hikvision.com/en/products/Thermal-Products/)

And this: https://www.eevblog.com/forum/thermal-imaging/ht-18-image-noise/ (https://www.eevblog.com/forum/thermal-imaging/ht-18-image-noise/)

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Ultrapurple on July 16, 2020, 08:46:45 am

@Lord of nothing - I didn't spot anything higher than 640x512 on the Hikvision site. Did I miss something?

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Lord of nothing on July 19, 2020, 10:45:16 am

 ;D I font know all there Products.
Well my price for that is 575€ sound good.

Title: Re: 100$ Thermal Camera 32x32 Pixel. HTi HT-02D Unboxing And Test (future teardown)
Post by: Lord of nothing on July 19, 2020, 03:00:25 pm

 :scared: I orderd the HT-19 it seem to there newest model.
I got them for € 424,62 and I should get 20% Cash back. If the gave it to me its damn cheap.
HT-18: 220*160
HT-19: 320*240