PC-based instrument for monitoring global solar radiation using a photo transistor matrix
Date
3-2004
Degree
Bachelor of Science in Applied Physics
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Zaldy A. Andales
Abstract
This study aimed to design and implement an instrument for PC-based monitoring of global solar radiation. This was done with the use of a phototransistor matrix device interfaced to a computer through analogue multiplexers and an Analogue-to-Digital Converter Softwares were implemented to access the instrument hardware through the parallel port. Calibration was done on the instrument. The calibration equation was found out to be an exponential function given by y = 0.56466- exp(x/1.87705) and had a correlation coefficient of 0.9778, of which is within the tolerable instrument error of 10%. Data was gathered at the rooftop of the Institute of Computer Science Annex and at the National Agromet Station, UPLB A comparative analysis was done between the implemented instrument and the instruments used at the local weather station, National Agromet Station. Possible sources of the errors seen from the analysis were stipulated. The study was also able to implement an instrument that cost only $120.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Altoveros, Mark Lester L., "PC-based instrument for monitoring global solar radiation using a photo transistor matrix" (2004). Undergraduate Theses. 10349.
https://www.ukdr.uplb.edu.ph/etd-undergrad/10349
Document Type
Thesis