Title :
High-resolution multi-channel instrument for resonant sensor array
Author :
Ferrari, P. ; Flammini, A. ; Marioli, D. ; Taroni, A.
Author_Institution :
Dept. of Electron. for Autom., Brescia Univ., Italy
Abstract :
The problem of the instrumentation for resonant sensor arrays and in general, of the first elaboration electronics is considered. A new multi-channel instrument for frequency measurements has been developed using a numerical approach that improves noise immunity and decreases measuring time with respect to standard counting techniques. A smart least squares method for achieving compression of measurements is also presented. This method is useful for long acquisition campaign involving a great quantity of data. Finally some experimental results are reported to demonstrate the performance of this instrument
Keywords :
array signal processing; computerised instrumentation; digital signal processing chips; electric sensing devices; frequency measurement; microbalances; pulse height analysers; sensor fusion; DSP core; compression of measurements; decimator filter; digital measurement; frequency lock circuit; frequency measurements; high-resolution multichannel instrument; noise immunity; programmable counter; resonant sensor arrays; smart least squares method; Frequency measurement; Instruments; Intelligent sensors; Least squares methods; Measurement standards; Noise measurement; Resonance; Sensor arrays; Standards development; Time measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.929483
