Design and implementation of seismic data acquisition system using PC/104

Abstract

The seismic data acquisition system from analog to digital data converter has been integrated to develop acquisition device. Contrary to the digitizers currently in use, seismic data acquisition using PC/104, or industrial personal computer, turned out to be able to produce a less expensive digitizer (analog to digital converter) proven able to overcome issues of portability, efficiency, and durability. PC/104 used in this study was Arbor production with the EmCORE n-511 serial number within operating system, and the programming languages are DOS 6.02 and C, respectively. This research resulted in a design of a prototyping device based on PC/104 and created a program to record seismic data. The program was compiled in the Microsoft Windows XP operating system environment using Borland C 5.02 software. The input range of the data acquisition system that has been tested is ± 10 V. The performance test results show a resolution of ± 0.915 mV, a linearity of 0.2% full-scale reading, instrument work noise is ± 1.2 mV with a maximum frequency distortion of 2%. The instrument performs well at a rate of 10 Hz to 5000 Hz, but the software has a limited capacity of only 1000 Hz. From the results of a comparative test with Digitizer Güralp Type CGM-DM16R8, the value of the RMS error is 4.64%.