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Remote spectroscopy for raman and brillouin scattering Patent #: 5262644
ApplicationNo. 284213 filed on 08/02/1994
US Classes:250/341.1, With irradiation or heating of object or material250/341.8, Measuring infrared radiation reflected from sample356/301With Raman type light scattering
ExaminersPrimary: Fields, Carolyn E.
Assistant: Glick, Edward J.
Attorney, Agent or Firm
Foreign Patent References
International ClassG01N 021/47
Foreign Application Priority Data1993-08-05 JP
AbstractAn apparatus and a method for measuring concentrations of components with light scattering allows measurement of concentrations of components in a measuring object to be accomplished in non-destructive fashion by using light in near-infrared wavelength ranges with good transmissivity and relatively low light quantum energy. The apparatus is composed of a light irradiator (1) for irradiating excited light in a near-infrared wavelength range to a measuring object (16), a photodetector (2) for receiving and spectrally separating Raman scattered light derived from the measuring object (16), and an arithmetic unit (3) for calculating concentration of a component in the measuring object (16) from intensity of the Raman scattered light and outputting a calculation result.