TITLE

Development of DMA-Faraday Cup Electrometer system for measurement of submicron aerosol particles

AUTHOR(S)
Shimada, Manabu; Iskandar, Ferry; Okuyama, Kikuo
PUB. DATE
August 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 534 Issue 1, p773
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A measurement system consisting of a Long Differential Mobility Analyzer (LDMA) and a Faraday Cup Electrometer (FCE) was developed to investigate the performance of the system for measuring the size distribution of submicron airborne particles. The LDMA was designed to have an extended classification zone in order to classify particles up to 1 μm. A new data reduction program was prepared to convert the electrical mobility distribution data obtained with the FCE into a particle size distribution. By using the program, the size distribution of TiO[sub 2] particles determined by the present system agreed with that measured by a combination of the LDMA and a condensation nucleus counter. The system was also evaluated using polydispersed, submicron SiO[sub 2] particles generated by a spray drying method. The results show that the present system performs well and is a useful tool available for measuring particles size over a wide range.
ACCESSION #
5669651

 

Related Articles

  • Mass balance of aerosol particles as a function of their size. Molna´r, A.; Me´sza´ros, E.; Feczko´, T.; Temesi, D. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p751 

    Atmospheric aerosol particles play an important part in the control of the state of the atmosphere. Since the effects of the particles depend on their size and chemical composition, the determination of the mass balance as a function of the size is of particular importance. The chemical mass...

  • Novel measurements of atmospheric aerosol properties. McMurry, Peter H.; Dick, William D.; Wang, Xin // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p699 

    Methods that were recently developed in our laboratory to measure fundamental aerosol properties including density, water content, refractive index and shape are discussed. All of these techniques involve measurements on particles that have first been classified according to electrical mobility...

  • Aerodynamic particle size registration by TV-methods. Kolomiets, S. M. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p804 

    A possibility is shown to simultaneously determine the aerodynamic and geometrical sizes of suspended particles at some modification of the known television methods. Under certain conditions it is possible to estimate particle matter density A relative error in the determination of the density...

  • An improved multigain range linear current electrometer. Rajput, S. S. // Review of Scientific Instruments;Jun2003, Vol. 74 Issue 6, p3120 

    The JFET switch properties set the measurement range of a multiple gain range current electrometer and affect its performance at large input currents through the introduction of nonlinearities in the resultant current measurements. Drain saturation current (I[sub dss]) and leakage current (I[sub...

  • PARFORCE: Objectives and achievements. O’Dowd, C. D.; Ma¨kela¨, J. M.; Korhonen, P.; Ha¨meri, K.; Va¨keva¨, M.; Pirjola, L.; Hansson, H-C; Jennings, S. G.; de Leeuw, G.; Kunz, G.; Berresheim, H.; Harrison, R. M.; Allen, A. G.; Viisanen, Y.; Kulmala, M. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p827 

    Understanding the formation of natural particles in the atmosphere, and their growth to radiatively active sizes, is critical to quantifying the role of anthropogenic emissions on cloud formation, climate change and public health. Only a few regions have been identified as strong natural sources...

  • Long-term measurements of events of new particle formation at Hohenpeissenberg: Methods of analysis and climatology. Birmili, W.; Wiedensohler, A.; Plass-Du¨lmer, C.; Berresheim, H. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p819 

    Atmospheric new particle formation is investigated, based on long-term observations of the aerosol number size distributions, relevant gaseous components including H[sub 2]SO[sub 4] and OH, and meteorological parameters. Measurements were conducted at Meteorological Observatory Hohenpeissenberg,...

  • Particle image formation by TV-analyzer “ARFA”. Kolomiets, S. M. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p808 

    The peculiarities of suspended particle images construction in the television aerosol size and shape analyzer "ARFA" are considered. It is shown that under certain conditions images positions relative to some certain point in the registration plane determine unambiguously the particle position...

  • Vertical distribution characteristics of atmospheric aerosols in Liaoning, NE China. Jun, Yang; Deping, Zhou; Fujiu, Gong; Jianchun, Gao; Zihua, Li // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p747 

    16 aircraft missions were conducted for the measurement of atmospheric aerosols in separate days of late spring and early summer of 1996 and 1997. The paper deals with detailed analysis of the variation in vertical distributions of the concentration of the particles and their size distribution...

  • A balloon-carried electrometer for high-resolution atmospheric electric field measurements in clouds. Harrison, R. Giles // Review of Scientific Instruments;Jun2001, Vol. 72 Issue 6, p2738 

    A disposable sensor for electric field measurements within clouds is described, which operates in conjunction with a standard meteorological radiosonde carried beneath a helium balloon. The radiosonde supplies telemetry and meteorological data. The sensor is constructed to measure electric...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics