Simulation on the particle flow in laser airborne particle counting sensor

Jiancheng Lai; Ting Zou; Chunyong Wang; Wei Yan; Yunjing Ji; Zhenhua Li

doi:10.1117/12.2070241

11 November 2014 Simulation on the particle flow in laser airborne particle counting sensor

Jiancheng Lai, Ting Zou, Chunyong Wang, Wei Yan, Yunjing Ji, Zhenhua Li

Proceedings Volume 9274, Advanced Sensor Systems and Applications VI; 927413 (2014) https://doi.org/10.1117/12.2070241
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Laser airborne particle counting sensor (LAPCS), based on light scattering of particle, is specially used in clean environment monitoring. LAPCS samples the air by a pump, and uses a laser illuminating the sampled air in the chamber, then counts the total number of scattering signal and its amplitude distribution, which can characterize the number of particles and size distribution. The structure of air-flow-path in LAPCS directly influences the flow of sampling air, the particle trajectories and velocity distribution in chamber that will influence the performance of LAPCS. In this paper, a finite element arithmetic based on Ansys Fluent14 software environment was developed to simulate the air flow and particle flow in LAPCS. Based on numerical calculations, velocity distribution of airflow and particle trajectories in chamber of LAPCS with different nozzles are presented intuitively. A few particles probably are disturbed outside the air-flow path and pass the photosensitive area many times, which can make the LAPCS iteration count. The results can provide a theoretical basis for optimizing design of the LAPCS.

Citation Download Citation

Jiancheng Lai, Ting Zou, Chunyong Wang, Wei Yan, Yunjing Ji, and Zhenhua Li "Simulation on the particle flow in laser airborne particle counting sensor", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 927413 (11 November 2014); https://doi.org/10.1117/12.2070241

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