The Leaf Wetness Sensor is a Small circuit board this is mounted so it can be adjusted to different angles. The leaf wetness sensor is made up of two parts a Hobby board moisture circuit board And the leaf sensor
Solar radiation sensor, The Photodiode has been extended from the circuit board , and mounted in a table tennis ball this will protect the photodiode and allow enough light for the device to work the Ping Pong Ball is glued to a plastic tube , then mounted in to a waterproof box and sealed with sealant
Hobby board barometer It reads pressure from 28-32 inHg (948-1083 mb). It's resolution is 0.01 inHg (0.34 mb).
Instruments in the small Stevenson screen is a set of Sheathed ordinary Hygrometer . Met Office pattern (BS692). ) a standard minimum maximum temperature sensor, there is a small fan at the bottom this helps with air circulation
My first weather station was an Oregon scientific wireless model WMR928NX the manufacturers have stopped production on this model and now offering a WMR200 - Next Generation Weather Station as a replacement, I decided to go for a Proffessional 1 wire weather station system.
The following sensors are online ( Power injector,solar radiation sensor, barometer, out door temperature/humidity, wet bulb and dry bulb,Leaf wet sensor, soil moisture module using a specially designed in house sensor), concrete temperature sensor, soil temperature sensor@2 inches, rain gauge, snow sensor using a laser Sensor, Cloud sensor is a special designed infrared cloud temperature sensor, Dual Counter mod rain switch connected to a Rain Tracker Rain Gage - Model RG-10, the wind instruments were supplied by Inspeed and connected to a hobby board Anemometer Controller Board, rain duration sensor
There are several traditional instruments which we use for calibration purposes, we have lightning radar system which detects storms over Europe, we are also monitoring earthquakes around the world using a VS-1 SEISMOMETER, to keep our weather station time clock accurate we use a GPS system which synchronises the weather computer.
VORTEX WIND SENSOR Contests of a Inspeed E-VANE & Electronic Wind Direction Sensor these instruments are connected to a hobby board module these sensors are mounted on top of the house
New Solar radiation shield
-:Air temperature / humidity
Traditional Piche Evaporimeter
Sheathed Pattern Soil Thermometer
Sheathed Pattern Soil Thermometer
consists of a solid stem thermometer fitted into a transparent glass sheath. Each depth is established by inserting a steel tube into the ground, and lowering the thermometer by the chain down into the tube. The thermometer bulb is embedded in paraffin wax to give a slow response time enabling it to be withdrawn to take readings
28/07/2012
This instrument is not installed as we are waiting for a stainless steel Tube to be made
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Infrared cloud temperature sensor with UV sensor and solar sensor module made in-house
Rain gauge set to tip at 0.2mm this rain gauge is connected to a 1 wire counter,inside the rain gauge there is a heater and a thermostat which is designed to melt snow,
Rain duration sensor set to detect moisture from 0.001mm this device is connected to a hobby board counter module, as soon as any droplets of rain hit the lens weather display indicates very light mist, this device also is used as a rain duration sensor
Hobby boards 1 wire Lightning senor only records lightning counts
Soil moisture sensor consists of a new hobby board moisture module which is connected to 3 specially made sensing blocks
The cloud sensor consists of a one wire temperature sensor which is surrounded by insulation on the top of the temperature chip is a black metal disc,this is position so it is pointing at the sky weather display software works out the sky condition based on the temperature differential from the Air temperature,and cloud sensor temperature
09/04/16
Solar radiation screen has been replaced and updated with the more advanced system
In this solar radiation screen there is a temperature and humidity module the temperature sensing chip and humidity sensing aliment have been Extended from the circuit board to form two probes the humidity probe also has a protective nylon mesh cap this improved the response of the Humidity sensor there is a fan mounted at the bottom which is drawing air through the top and down over the sensors
Traditional Piche Evaporimeter
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09/04/16
Replacement radiation shield consists of a double wall insulated, fan system to draw the air over the sensors .This is made the sensors more accurate and a faster response