[chbot] Wanting real data - How best to mount sensors outside in the elements?

[Henri Shustak]

Not my idea. But I really, think it would be awesome if Phones had infrared LED’s flood light (you know like the touch) so you could look around in the dark with a phone. Maybe have an app filter which makes the screen red, maybe it would preserve your night vision?

Seems like all manufactures to date have overlooked how this may work. Perhaps they tested it and it is not as good as I think it would be. Maybe there needs to be a mechanical component. But surely with manufactures including so many cameras, one more camera is not going to add lots more weight. As such, you could have a dedicated IR sensitive camera. 

Also, have any of you seen those studio cameras which can basically see in the dark and record / stream video. I think it was a canon that I saw that had some ridiculous ISO.



> On 29/05/2020, at 8:25 PM, Richard Jones <richardandjanenz at gmail.com> wrote:
> 
> Some of the best weather proof enclosures leak eventually as they age. I have seen drain holes drilled to release the water trapped inside IP68 certified weatherproof enclosures.
> 
> For infra red investigations a mobile phone camera sees infra red from IR remote controls quite well, so you may be able to use this feature as a crude test for infra red transmission through different filter / enclosure materials.
> 
> Richard Jones
> 
> On Fri, May 29, 2020 at 4:47 PM Quentin McDonald <dqmcdonald at gmail.com> wrote:
> I would second the waterproofed one-wire sensors, they seem pretty robust. Have been measuring ground temperature for a while now. I've also had reasonable luck with Sistema food storage containers as a cheaper solution compared to true weatherproof enclosures. They do eventually pick up some UV damage but are so cheap it hardly matters. 
> 
> I do have a question of my own. I want to augment my weather station with a UV sensor and an infrared thermometer module to measure sky temperature. But how to weatherproof them? From what I gather some types of acrylic are UV transparent but how does one know which? And for IR  - can you even have something between the sensor and the object you are trying to measure? I did wonder if perhaps just a long thin tube to collimate it (since I only want to measure a small section of the "sky" anyway). Then just hope for the best with rain getting in...
> 
> 
> Quentin
> 
> On Fri, May 29, 2020 at 2:17 PM Robin Gilks <robin at gilks.org> wrote:
> 
> > Hey all list dwellers,
> >
> > I'm looking for advise, suggestions and general pointers to what other
> > have done in order to get various types of sensors working out in the real
> > world - that is beyond the bench.
> >
> > What sensors perform better / marginal, what methods provide the best
> > mechanical / environmental protection.
> >
> > Where should I position say an outdoors temperature sensor?
> >
> > Mostly I'm after less of the theory and more of the I tried this but it
> > mutated a spider which ate my cat kind of thing. So don't do that.
> >
> > Thanks for reading, stay safe. Wash your hands.
> >
> > Regards,
> > Andrew
> 
> I've been using 1-wire ds18b20 for some 15 years and the ones that are in
> a sealed stainless tube seem very reliable outside - I have one on the
> roof of the pump shed in full sun to get the sky temperature and one in a
> hedge for the shade temperature on my irrigation controller. They is used
> for frost detection. Hadley down at Nicegear has them in stock, in fact
> the ones I'm using at present I got from him some 5 years ago.
> 
> The BME280 I use in my weather station does temperature, humidity and
> pressure and is fine so long as it is kept out of direct influence with a
> Stevenson screen (its a bit delicate). I made mine from upturned flowerpot
> saucers, threaded studding with spacers between like this:
> http://gilks.ath.cx/gallery3/Building-a-PJ-inverter/IMG_5661
> 
> Other sensors, I would go for automotive types are they are going to be
> very robust to start with!
> 
> -- 
> Robin Gilks zl3rob/g8ecj
> Internet: g8ecj at gilks.org    http://www.gilks.org
> 
> 
> 
> 
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