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solar radiation sensor

Discussion of version 3 of Cumulus, which runs on Windows, Linux, and OS X. All Cumulus MX queries in here, please.
dazza1223
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solar radiation sensor

Postby dazza1223 » Fri Aug 03, 2018 11:21 pm

hi has any one made there own solar radiation sensor?

like Davis VP2 with solar radiation sensor,

if so how?

AllyCat
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Re: solar radiation sensor

Postby AllyCat » Sat Aug 04, 2018 4:17 pm

Hi,

Not really an MX topic, but the Davis sensors are often considered as "reference" products which use specialised components such as a Teflon (PTFE) "Lens" in both, and a very expensive optical filter in the UVIndex sensor. Also, they are all individually calibrated, so not normally suited to a DIY project.

There was the very long Sunshine Recorder thread which resulted in a small-scale "production" version, but you might do better to investigate the Weatherduino Solar Sensor thread on their forum. It's significant that the designer/developer will only supply the PCB to "advanced" (experienced) users because of the very real complications of calibration and weatherproofing, etc.

Cheers, Alan.

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mcrossley
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Re: solar radiation sensor

Postby mcrossley » Sat Aug 04, 2018 9:13 pm

I made a serviceable one using a photo diode, and a UV sensor with a Reyax UVI-01.

Unfortunately I lost the final cct diagrams, but a friend has replicated them successfully. Best to have some electronics experience before attempting this.

As Alan says, the electronics is half of it, the other challenge is mounting to get a cosine response and sealing it etc. I used a white perspex filter.

The housing now needs realigning as it is tilted to the north, but it's a faff to realign up above the roof.

dazza1223
Posts: 344
Joined: Sun Jan 25, 2015 8:41 pm
Weather Station: Davis Vantage Vue
Operating System: raspberry pi 3
Location: worthing
Contact:

Re: solar radiation sensor

Postby dazza1223 » Sun Aug 05, 2018 7:40 pm

thank guys ive beed reading about getting the raspberry pi solar sensor kit or will that not help ;)

AllyCat
Posts: 1042
Joined: Sat Feb 26, 2011 1:58 pm
Weather Station: Fine Offset 1080/1 & 3080
Operating System: Windows XP SP3
Location: SE London

Re: solar radiation sensor

Postby AllyCat » Mon Aug 06, 2018 3:13 pm

Hi,

You need to post a link to the "Pi solar sensor kit". I could only find some generic "sensors" kits (IMHO not much more than "toys") and a solar charging kit, neither of which are likely to be of much use for serious measurements. The Davis solar sensors cost hundreds of £££s, mainly for good reasons.

Cheers, Alan.


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