A Low Cost Digital Data Acquisition System for Infrasonic Records

Author

Chilo, José ; Lindblad, Thomas

Author_Institution

Gavle Univ., Gavle

fYear

2007

fDate

6-8 Sept. 2007

Firstpage

35

Lastpage

37

Abstract

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.

Keywords

analogue-digital conversion; data acquisition; digital filters; digital signal processing chips; microcontrollers; MSP430 microcontroller; QF4A512 programmable signal converter; analog to digital converter; antialiasing filters; digital data acquisition system; digital signal processor; infrasonic records; infrasound sensors; Analog-digital conversion; Costs; Data acquisition; Digital filters; Digital signal processors; Filtering; Finite impulse response filter; Frequency; Microphones; Signal processing; Data Acquisition; Digital Filtering; Digital Signal Processor; Infrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Dortmund

Print_ISBN

978-1-4244-1347-8

Electronic_ISBN

978-1-4244-1348-5

Type

conf

DOI

10.1109/IDAACS.2007.4488367

Filename

4488367