Why destroy a perfectly good thermometer when you could destroy a perfectly good thermometer? That's what I say. Enjoy!
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#franlab #LED #teardown
- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
I'm pretty sure for human temperature they have an algorithm that concerts external skin temp to internal temp. As I can take a FLIR and regular point and shoot temp gun and get the same temp say 94⁰ but the medical one will show 98.6⁰
With that, I'm surprised on that one you were able to go through different menus to take regular readings instead of medical use.
So Big Clive has the Vise of Knowledge and Fran has the Iron Maiden.
I can never fix the rubber connectors to the LCD once I unstuck them the pcb
Wow. The LCD screen, its connections, and that diffuser panel would be things to see under the microscope.
Something about the blue and white color scheme made me think “I bet that’s for human temperatures”. I think you want a black and yellow one. 🙂
You've come along way baby 😊
When you take the face off It's Killroy… Killroy 😮
I'd have liked to have seen the backlight LED lit.
fascinating..what's the distance-to-spot ratio for that unit? simply bypassing the warning systems may not make it suitable as a general purpose device
Oh yeah, I factory delete those buzzers from devices all the time. I really hate the noise they make, and I honestly don't think there's a need for any devices to make a beep or alert noise. Aside from smoke detectors, of course.
Good old American screwdriver and chisel, works every time. Also that red handled thing helped too, whatever that was.
Some years ago I made an LED (set) backlight panel. My first tests were with a single LED, but it did not even start to be covering the whole area. Then I used a string of multiple ones along the edge of the acrylic plate. Much better near the edge, but not so further away. Then I got the machine shop drill partial holes in a grid to the plate surface. MUCH better, but apparently the depth of those partial holes should be varied or probably their density should be progressive to scatter less light close to the LED and more farther out. I would have liked to see your commercial spreader exposed! I sort of started suspecting that the white layer on top had "nubs" to make contact to the acrylic surface, thereby serving the same scattering as my drilled semi holes, only way cheaper to make. — Could you possibly return to this point of technical interest?
As to the thick tube, I think it serves two purposes. One is to provide a thermal mass for a reference temperature. The other one is to limit the angle of view.
Finally, I concur with some other comment, suggesting that the second chip almost certainly would store your settings for the next time. But there is probably more than just the low and high values, when you expand the range. I would assume there could be some linearization data as well, i.e. at least two point (or more) calibration stored.
A side note, I have had for at least 20 years a Fluke IR attachment for a DMM. It has served me well, but some years ago I added another IR device, a Flir 1, for my iPad Mini. That gives me a color coded map of hot spots on my PCBs. The only problem is its update rate – I need to avoid too fast movements. Otherwise, I wish you many more opportunities of seeing and showing what the odd devices have "eaten".
The problem is that it does not have an emissivity control. Not every surface emits IR efficiently.
IR sensors tend to have a germanium window above a thermopile and a thermistor to measure the temperature of the cold junctions of the thermopile.
I love how [certain other channels] carefully slide a spudger to separate plastic parts…then Fran comes along with a hammer and chisel and gets the job done in seconds. Well done, Fran!
WTF Fran, why are my comments hidden from my other YT account? i presume i have said something you did not agree with. just as i was thinking about being a patreon as well. your loss.