Higher-order spectra in nanoparticle gas sensors Academic Article uri icon


  • It has previously been shown that resistance fluctuations in resistive sensors provide enhanced sensitivity and selectivity for gas detection. We report measurements and analysis of non-Gaussian components in nanoparticle Pd z ( WO 3)1- z film gas sensors, with z being 0.01 or 0.12, in different ambients. These components can be characterized by higher-order spectra. Contour plots are given of bispectra, and plots of integrated bispectra and trispectra. The phase of the integrated higher-order spectra is analyzed as well.

published proceedings


author list (cited authors)

  • Smulko, J. M., Ederth, J., Kish, L. B., Heszler, P., & Granqvist, C. G.

citation count

  • 9

complete list of authors

  • Smulko, JM||Ederth, J||Kish, LB||Heszler, P||Granqvist, CG

publication date

  • December 2004