Analog compensation of parasitic sensor signals in a subsampling impedance analyzer circuit for resonating sensors

Many sensor signals are afflicted with unwanted components induced by parasitic but well known sensor effects. With utilization of digitizing interface circuits the suppression of these components is typically performed in the digital domain. Hence the effective resolution of the system is reduced,...

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Bibliographic Details
Published inProcedia engineering Vol. 5; pp. 57 - 61
Main Authors Niedermayer, A.O., Sell, J., Jakoby, B.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2010
Subjects
Harmonic
Impedance analyzer
Network analyzer
QCR
Resonating sensor
Subsampling
Harmonic
Network analyzer
QCR
Impedance analyzer
Resonating sensor
Subsampling
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Summary:Many sensor signals are afflicted with unwanted components induced by parasitic but well known sensor effects. With utilization of digitizing interface circuits the suppression of these components is typically performed in the digital domain. Hence the effective resolution of the system is reduced, especially when unwanted signal components are dominating the signal’s magnitude. In this contribution, a method of parasitic signal compensation as implemented in an impedance analyzer circuit for a quartz crystal resonating sensor is presented.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2010.09.047