VECTORIAL IMPEDANCE METER FOR GAS CHEMICAL ANALYSIS |
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| A. Fort, N. Machetti, S. Rocchi, N. Ulivieri, V. Vignoli |
- Abstract:
- In this paper two digital correction techniques are presented aiming at enhancing the measurement accuracy of an electronic nose. The equipment operates as a vectorial impedance meter in the frequency range 0-15 MHz. The digital correction techniques allow compensating for the conditioning electronic response. Linear behaviour is assumed, cross-talk, amplitude and phase distortions are accounted for by a black box two-ports model. The model parameters are evaluated either with a set of measurements, spanning the whole frequency range, and by a single measurement by exploiting autoregressive (ARX) models.
- Keywords:
- impedance measurement, black-box model, autoregressive model
- Download:
- IMEKO-WC-2000-EWADC-P616.pdf
- DOI:
- -
- Event details
- Event name:
- XVI IMEKO World Congress
- Title:
Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future
- Place:
- Vienna, AUSTRIA
- Time:
- 25 September 2000 - 28 September 2000