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A Low Cost Digital Data Acquisition System for Infrasonic Records

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2 Author(s)
Chilo, J. ; Gavle Univ., Gavle ; Lindblad, T.

This paper describes a new digital data acquisition system that can be used to record signals from infrasound events. The system includes a QF4A512 programmable signal converter from Quickfilter Technologies and a MSP430 microcontroller from Texas Instruments. The signal output of the infrasound sensors is converted to digital via a 16-bits analog to digital converter (ADC). To prevent errors in the conversion process, Anti-Aliasing Filters are employed prior to the ADC. Digital filtering is performed after the ADC using a digital signal processor, which is implemented on the QF4A512.

Published in:

Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2007. IDAACS 2007. 4th IEEE Workshop on

Date of Conference:

6-8 Sept. 2007

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