Low cost PC-based instrument for monitoring long period one- dimensional horizontal ground motion using Lehman Seismometer
Date
10-2002
Degree
Bachelor of Science in Applied Physics
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Nelio C. Altoveros
Abstract
A PC-based instrument for measuring long period horizontal ground motion was designed and implemented. The instrument made use of a Lehman seismometer sensitive to the horizontal direction of long period ground motion. An amplifier circuit was developed to increase the induced voltage generated by the sensor which arises from the relative velocity between of the seismometer coil and magnets. The instrument was interfaced to a microcomputer through its parallel printer port using a 12-bit analog-to-digital converter circuit. A software program using Turbo C was developed to automate monitoring and continuous recording of data. Collection, recording and analysis of data were done at the Physics Laboratory, IMSP, University of the Philippines Los Banos.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Calayag, Angelica Marie B., "Low cost PC-based instrument for monitoring long period one- dimensional horizontal ground motion using Lehman Seismometer" (2002). Undergraduate Theses. 10303.
https://www.ukdr.uplb.edu.ph/etd-undergrad/10303
Document Type
Thesis