Development of photovoltaic prototype device for estimating projected leaves area

The aim of the current study was to developed a solar leave area meter to measure leaves area fast and accurate of Guava and Lemon leaves. As well as, validated this method by comparing it with the mechanical planimeter model Placom standard leaf area, image processing method and leaf area meter model (LI-COR, 30000A). This technique is depending on a projected area on the photovoltaic solar panel that change of the produced electric power due to the captured light. The accuracy and precision of this method were compared to that of a digital mechanical drawing planimeter method. The result indicated that the maximum accuracy percent of the area was 99.92 % and 99.60 % for using leaf area meter model (LI-COR, 30000A) and mechanical Planimater method respectively. On the other hand, the maximum accuracy percent of the area was 96.82% and 100% using a developed solar area meter and standard LiR COR instrument respectively.