Welcome to Weather-Above
Sensor connected
to an analog clock,
The sunshine recorder has been built in-house, it is designed to record how much sunshine has been captured during each day. The device has an analogue clock which displays how much sun we have received, and a output for a EL-USB-5 Counter, Event and State USB Data Logger ,giving you an accurate account of the duration of sunlight each day. It is a very versatile mobile unit intended to be used in a variety of areas. I will put more details on the website once I have completed 12 months of testing. This instrument could also be converted for a USB port and a one wire weather station add-on.
The Campbell–Stokes recorder (sometimes called a Stokes sphere) is a kind of sunshine recorder. It was invented by John Francis Campbell in 1853 and modified in 1879 by Sir George Gabriel Stokes. The original design by Campbell consisted of a glass sphere set into a wooden bowl with the sun burning a trace on the bowl. Stokes's refinement was to make the housing out of metal and to have a card holder set behind the sphere.
The unit is designed to record the hours of bright sunshine which will burn a hole through the card.
EL-USB-5
Counter, Event and State USB Data Logger
EL-WIN-USB (CONTROL SOFTWARE)
The software allows the following parameters to be configured:
• Logger name
• Record events, record state changes or count
events
• Triggering on rising of falling edges (see ‘Edge
Triggering’ section)
• Voltage or Volt free contact triggering
• Flash LED on event/state change
• Voltage range
• Time period for event counting (i.e count the
number of events every 10 seconds) can be set to
any period between 1 second to 99 hours. Maximum number of
events per time period is limited to 65,000.
First rough draft on how to make this device. please click on the link below for the PDF file
Added a solar panel to charge the 3 rechargeable AA batteries
21/04/13 Added a silver plastic transparent filter this makes a big difference to the calibration, and as made the instrument very accurate
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Updated 31/03/2013