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| The Following 27 Users Say Thank You to kimmoli For This Useful Post: | ||
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2014-02-16
, 17:37
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Posts: 562 |
Thanked: 2,744 times |
Joined on Dec 2013
@ Espoo, Finland
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#2
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"proof of concept" in progress.
Sensor devices finally available for purchase, delivery time 8-10 weeks
(Digikey does not sell to Europe)
Time to do some schematics/layout.
Got camera viewfinder up and running with mosaic -style semi-transparent overlay on it. (just random colors)
(QRScany by Yoktobit kicked me going)
Last edited by kimmoli; 2014-02-17 at 08:39.
Sensor devices finally available for purchase, delivery time 8-10 weeks
(Digikey does not sell to Europe)Time to do some schematics/layout.
Got camera viewfinder up and running with mosaic -style semi-transparent overlay on it. (just random colors)
(QRScany by Yoktobit kicked me going)
__________________
TOH ideas, concepts and creations since 2013 toholed tohuart toheink Heebo tohIRi i2ctool tohmm LeTOH FMTOH
TOH ideas, concepts and creations since 2013 toholed tohuart toheink Heebo tohIRi i2ctool tohmm LeTOH FMTOH
Last edited by kimmoli; 2014-02-17 at 08:39.
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2014-02-16
, 23:10
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Posts: 1,335 |
Thanked: 3,931 times |
Joined on Jul 2010
@ Brittany, France
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#4
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Thanks again Kimmoli, this subforum would not be the same without you. And the Jolla in general.
I'm in for one of this OH provided that the accuracy and reliability are good enough (can you elaborate on both these please?). I may use that for acquirig scientific data, and although these data would be preliminary only and not to be published, I need reliability (at least comparatively among measurements, not so interested in absolute accuracy of measurements).
Count me in in that case.
[Edit] Apparently accuracy is about d=2.5-3.0 (for high gain and low gain, respectively), which will likely be too high for me, unless you have other information Kimmoli.
Last edited by Kabouik; 2014-02-16 at 23:20.
I'm in for one of this OH provided that the accuracy and reliability are good enough (can you elaborate on both these please?). I may use that for acquirig scientific data, and although these data would be preliminary only and not to be published, I need reliability (at least comparatively among measurements, not so interested in absolute accuracy of measurements).
Count me in in that case.
[Edit] Apparently accuracy is about d=2.5-3.0 (for high gain and low gain, respectively), which will likely be too high for me, unless you have other information Kimmoli.
Last edited by Kabouik; 2014-02-16 at 23:20.
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2014-02-17
, 05:34
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
Joined on May 2012
@ Southerrn Finland
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#5
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Originally Posted by Kabouik
Unfortunately you cannot obtain better accuracy from sensors not of the externally cooled type. Bacground noise levels pretty much dominate the useful signal obtained from the device, and that is not likely to change due to the nature of infrared detection.
[Edit] Apparently accuracy is about d=2.5-3.0 (for high gain and low gain, respectively), which will likely be too high for me, unless you have other information Kimmoli.
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2014-02-17
, 06:25
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Posts: 562 |
Thanked: 2,744 times |
Joined on Dec 2013
@ Espoo, Finland
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#6
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Ofcourse it is not a scientific instrument... (comp with juiceme)
But i think there are applications for this too. Finding hotspots, leaking points in your house during winter, electronics fault-finding and more,
But i need a prototype before i can say more.
But i think there are applications for this too. Finding hotspots, leaking points in your house during winter, electronics fault-finding and more,
But i need a prototype before i can say more.
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2014-02-17
, 09:36
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Posts: 738 |
Thanked: 819 times |
Joined on Jan 2012
@ Berlin
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#8
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Originally Posted by TemeV
~40$
This is quite interesting project. What is the price of the sensor? I would have use for a cheap thermal imager.
http://www.digikey.com/product-detai...9-6-ND/3461620
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2014-02-17
, 11:54
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Posts: 9 |
Thanked: 7 times |
Joined on Jan 2014
@ Oxford, UK
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#9
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There exists also MLX90620, a 16x4 sensor [1] which you can get for ~60 USD [2].
stefan
[1] http://www.melexis.com/Infrared-Ther...Array-776.aspx
[2] http://uk.futureelectronics.com/en/t...0-TU.aspx?IM=0
stefan[1] http://www.melexis.com/Infrared-Ther...Array-776.aspx
[2] http://uk.futureelectronics.com/en/t...0-TU.aspx?IM=0
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2014-02-17
, 12:14
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Posts: 562 |
Thanked: 2,744 times |
Joined on Dec 2013
@ Espoo, Finland
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#10
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Altough (as said before) Digikey does not sell these to EU
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| Tags |
| infrared, jolla toh |
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All times are GMT. The time now is 20:06.
TOH with 8x8 grid thermal imaging sensor - Application to overlay temperatures over camera image.
Sensor: Panasonic GridEYE AMG8832 (measurement range -20 to +100 C)
First assembled board:
(Original discussions here: http://talk.maemo.org/showthread.php...64#post1408564)
TOH ideas, concepts and creations since 2013 toholed tohuart toheink Heebo tohIRi i2ctool tohmm LeTOH FMTOH
Last edited by kimmoli; 2014-04-17 at 14:30.