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university:courses:alm1k:alm-lab-pv [16 Jan 2017 20:40] – [Procedure:] Doug Mercer | university:courses:alm1k:alm-lab-pv [16 Jan 2017 20:42] – [Procedure:] Doug Mercer | ||
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Ideally you should take data outside under constant temperature and sunlight conditions - i.e. no clouds. This may not always be practical depending on the computer used with the M1000 hardware. A sun facing window would work but it would be best to open the window and remove any shades or screens that might reduce the amount of sunlight. You should also make your measurements quickly to avoid the heating of the panel from the direct sunlight that may then change the characteristics during the data-collection. Make sure that you don't cast any shadows or reflections over the panel during the experiment. Once you have fixed the position of the panel with relation to the sun it is NOT TO BE MOVED DURING THE EXPERIMENT. | Ideally you should take data outside under constant temperature and sunlight conditions - i.e. no clouds. This may not always be practical depending on the computer used with the M1000 hardware. A sun facing window would work but it would be best to open the window and remove any shades or screens that might reduce the amount of sunlight. You should also make your measurements quickly to avoid the heating of the panel from the direct sunlight that may then change the characteristics during the data-collection. Make sure that you don't cast any shadows or reflections over the panel during the experiment. Once you have fixed the position of the panel with relation to the sun it is NOT TO BE MOVED DURING THE EXPERIMENT. | ||
- | Once you have obtained an I/V plot using the Waveforms software, export a data file in .csv format. Load the .csv data file into a data analysis software program like MatLab or a spreadsheet (Excel). You should have adjusted the horizontal time base of the scope to display a little more than one sweep of the voltage ramp. Your output data file will probably contain more than one set of voltage and current values from 0 to V< | + | Once you have obtained an I/V plot using the Waveforms software, export a data file in .csv format. Load the .csv data file into a data analysis software program like MatLab or a spreadsheet (Excel). You should have adjusted the horizontal time base of the scope to display a little more than one sweep of the voltage ramp. Your output data file will probably contain more than one set of voltage and current values from 0 to V< |
Repeat taking data for other positions where the panel faces away from the sun. | Repeat taking data for other positions where the panel faces away from the sun. |