Microcomputer-based instrument for detecting mango pulp weevil (Sternochetus frigidus Fabr.) infestation using a piezoelectric vibration sensor
Date
3-2001
Degree
Bachelor of Science in Applied Physics
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Nelio C. Altoveros
Abstract
A microprocessor-based instrument for detecting mango pulp weevil (Sternocheius frigidus) was designed, implemented, and evaluated. The instrument uses a piezoelectric vibration sensor to sense the vibrations produced by the mango pulp weevil (MPW). An amplifier circuit was used to amplify the analog signals detected by the sensor The instrument was interfaced to a Pentium 166 microcomputer through a custom-made analog-to-digital converter (ADC) card. A program was developed using C programming language that automatically gathers, analyzes, and stores the data Three hundred mangoes were tested to evaluate the accuracy of the instrument. Of the 120 infested mangoes, only 44 of them were detected (36.66%). A higher accuracy was obtained in detecting the clean mangoes. One hundred twenty seven out of 180 clean mangoes were correctly identified (70.55%). Total instrument accuracy was computed to be 57.0%. The instrument can be applied to detection protocol and bioacoustics research once it is improved.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Sese, Rogel Mari D., "Microcomputer-based instrument for detecting mango pulp weevil (Sternochetus frigidus Fabr.) infestation using a piezoelectric vibration sensor" (2001). Undergraduate Theses. 10520.
https://www.ukdr.uplb.edu.ph/etd-undergrad/10520
Document Type
Thesis