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Photometer, Albedometer, Spectrophotometer, Pyrheliometer, Recorder
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| Sun Trackers and their Applications | ||||||||||||||||
| Solar radiation is normally measured using a pyranometer that sees the whole hemisphere above it, the 'global' solar radiation. However, it is often necessary to accurately measure the 'direct' radiation coming only from the sun. This is done by a pyrheliometer that has a view slightly larger than the sun and its aureole and does not see the rest of the sky. | ||||||||||||||||
| The new Kipp & Zonen SOLYS 2 Sun Tracker is proving to be a major success and we are increasing production to keep up with demand. It is the only fully automatic sun tracker that does not require a computer and software for installation. The integrated GPS receiver automatically configures location and time data. | ||||||||||||||||
| SOLYS 2 is cost effective and simple to use whilst meeting the requirements of the BSRN. It is very efficient, ideal for operation at remote locations using solar power, and the belt drive system requires no maintenance. | ||||||||||||||||
| Sun Tracker 2APin Spain | ||||||||||||||||
| The Kipp & Zonen 2AP Sun Tracker has been in production for many years and over 400 units are in use around the world as the basis of top quality solar monitoring stations. The high power motors and precision gear drives have the torque to break ice and to operate in high winds, enabling operation in extreme conditions, from deserts to Antarctica. 5 A unique feature of the 2AP is the positioning capability. When connected to a PC it can perform a sequence of pre-programmed movements to point at a series of targets. | ||||||||||||||||
| To make accurate measurements the pyrheliometer must point precisely at the sun and this is achieved using an automatic two-axis sun tracker. An optional shading assembly can be fitted to block the direct solar radiation from reaching a second pyranometer, mounted on the tracker so that the 'diffuse' radiation from the sky can be measured. The sun tracker follows the solar arc using stepping motors, controlled by a micro-processor, that drive through belts or gears to provide horizontal (azimuth) and vertical (zenith) movement. An on-board programme requires accurate longitude, latitude, altitude, date, and time information for the measurement site. It then calculates the current sun position and points the tracker towards it. A sun tracker with pyrheliometer, pyranometer and shaded pyranometer makes a high quality solar monitoring station measuring direct, global and diffuse radiation. Such stations are widely used in meteorological networks providing data to weather forecasting models and for climate studies. The highest quality is the Baseline Surface Radiation Network (BSRN). Other applications include atmospheric chemistry research, pollution forecasting and materials testing. With increasing interest in renewable energy, good quality solar radiation data is becoming increasingly important. For electricity production (photo-voltaic systems) and thermal energy (solar collectors) the direct component is of particular interest. Activities include research and development, quality control, determination of optimal locations, monitoring installed systems and predicting the output under various sky conditions. | ||||||||||||||||
| Whatever your sun tracking need, Kipp & Zonen can provide the solution ■ | ||||||||||||||||
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