Title :
A Low Cost Digital Data Acquisition System for Infrasonic Records
Author :
Chilo, José ; Lindblad, Thomas
Author_Institution :
Gavle Univ., Gavle
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;
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
DOI :
10.1109/IDAACS.2007.4488367
