Design of multi-spot sensor array detector for toxic gas based on spectral analysis

Hai-yang Liao; Peng Tian

doi:10.1117/12.870103

9 November 2010 Design of multi-spot sensor array detector for toxic gas based on spectral analysis

Hai-yang Liao, Peng Tian

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78530G (2010) https://doi.org/10.1117/12.870103
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

According to the requirement of single-component toxic gases recognition and trace concentration measurement, a novel gas-sensitive sensor array is developed, which chooses metallic porphyrin as sensitive material. Moreover, the multi-spot sensor array detector is designed based on the absorption spectrum measurement and multi-spot measurement. This paper focuses on the structural design of the system and the establishment of the spectral analysis method. The model of after-spectrophotometric structure is adopted by the detector. The entire hardware platform is implemented based on S3C44B0 & μC/OS-II embedded system. In addition, this paper puts forward a recognition model, that combines Principal Component Analysis (PCA) with BP Artificial Neural Networks (BPANN), and an algorithm for trace concentration measurement, based on visible light absorption spectrum analysis. The experimental results show that the correct rate of prediction for 50 unknown samples is 98%, and the maximum relative measuring error is 3%.

Citation Download Citation

Hai-yang Liao and Peng Tian "Design of multi-spot sensor array detector for toxic gas based on spectral analysis", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78530G (9 November 2010); https://doi.org/10.1117/12.870103

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available