Microcontroller-based instrument for measuring hydrogen sulfide with data logging system
Date
10-2005
Degree
Bachelor of Science in Applied Physics
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Nelio C. Altoveros
Abstract
microcontroller-based instrument for measuring hydrogen sulfide with data logging system was designed, calibrated and implemented. The instrument made use of a three-electrode electrochemical sensor, specifically, 4HS Citicel H2S sensor, which was calibrated by applying different gas concentrations and comparing the instrument's reading with the reading (in ppm) of a commercially available BW GasAlert H2S meter. The study has four main parts namely hardware design, software design, instrument calibration and instrument testing. An ATMEGA16L microcontroller was used as the main controller for data retrieval, collection, processing and display. The instrument was used to determine the level of hydrogen sulfide emission in Mudspring, Mt. Mak-fling, Laguna. With 0.7 ppm as the highest one-minute concentration average acquired from the three trials held at the said site, it was experimentally verified that the level of HIS concentration in Mudspring is below the 10ppm threshold limit set by the American Conference of Governmental Industrial Hygienists. Since the concentration was below the threshold limit, it was concluded that the H2S emission in Mudspring does not pose adverse health effects to humans.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Lago, Jenie Marie L., "Microcontroller-based instrument for measuring hydrogen sulfide with data logging system" (2005). Undergraduate Theses. 10438.
https://www.ukdr.uplb.edu.ph/etd-undergrad/10438
Document Type
Thesis