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

[Henri Shustak]

Sorry typo correction. Like the touch / flashlight function. If anyone was wondering what that meant.

> 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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>