Accession Number : ADD011548

Title :   A Method for Determining in situ the Absorption Coefficient of Particulate Media Using Pulsed Laser Technique.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Mooradian,G C ; Stotts,L B

Report Date : 09 Oct 1984

Pagination or Media Count : 7

Abstract : A true indication of a fluid's absorption coefficient takes into effect the contributing factors of absorption and particle multiple scattering. A pulsed optical source transmits radiation through a relatively large volume of a certain particulate fluid medium. A detector or irradiance meter is gated so as to provide waveforms on a monitor which are characteristic of the absorption and multiple scattering of the medium. Using the transmittance and multiple line spread of the received signal a nearly real-time in situ analysis can be performed to provide scientists, communications specialists, etc. with the capability to anticipate operational parameters.

Descriptors :   *Patents, *Absorption coefficients, *Optical detection, Light pulses, Radiation absorption, Particulates, Laser beams, Optical communications, Long range(Distance), Fluids, Scattering

Subject Categories : Physical Chemistry
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE