The Pyranometer covers the solar radiation spectrum, extending from 300 to 2800 nm approximately, with an as flat as possible spectral sensitivity. As per the theory goes "the response to "beam" radiation varies with the cosine of the angle of incidence" while measuring the flux density or irradiance. This means that there is a full response when the sensor is hit by the solar radiation perpendicularly, when the sun at 90 degrees angle of incidence there is 0 responses, and when the sun is at degrees angle of incidence there are 0.5 responses.
Therefore following the definition it can be stated that the Pyranometer should have "directional response" or "cosine response" to come closer to the cosine characteristic. The Pyranometer has the following segments:
- Thermopile Sensor
- Metal Body
- Glass Dome
- Cable Gland
- Leveling Feet
- Signal Cable
- Rubber-o-ring
- Cap
- Connection block for cable cores
- Circuit board
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