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Improving the measurement accuracy of hydrogen cyanide sensor by using DSP technique

N. NI1,* , C. C. CHAN1

Affiliation

  1. Network Technology Research Centre, Nanyang Technological University, Research TechnoPlaza, #04-12, XFrontiers Block, 50 Nanyang Drive, 637553, Singapore

Abstract

Finite impulse response digital filter is used to improve the measurement accuracy of hydrogen cyanide gas sensor. Simulation and experimental results show that the minimum detectable gas concentration of about 0.1ppm is achieved by using direct spectroscopy technique at the wavelength of 1537.299 nm while the input power of the light source is 1 mW..

Keywords

Hydrogen cyanide gas sensor, Finite impulse response digital filter, Direct spectroscopy technique, Measurement accuracy.

Submitted at: July 10, 2006
Accepted at: July 20, 2006

Citation

N. NI, C. C. CHAN, Improving the measurement accuracy of hydrogen cyanide sensor by using DSP technique, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 4, pp. 1613-1615 (2006)