FOURIER TRANSFORM SPECTRAL DIFFRACTION METHOD USING PULSE LIGHT SOURCE

Title:

FOURIER TRANSFORM SPECTRAL DIFFRACTION METHOD USING PULSE LIGHT SOURCE

Document Type and Number:

Japanese Patent JPH055654

Kind Code:

A

Abstract:

PURPOSE:To adapt a conventional method to a pulse light source having a light emitting cycle longer than the reciprocal of twice the max. frequency possessed by an interferogram signal. CONSTITUTION:A pulse light source 1 is used as a light source and an interferogram is obtained from the output of a detector. 4 using a rapid scanning interferometer 2 and subjected to Fourier transform to obtain the spectrum of measuring light. In a lock-in amplifier 7 adapted when the output signal of the detector is present only in m/2tau

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Inventors:

MASUTANI KOJI

Application Number:

JP15833191A

Publication Date:

January 14, 1993

Filing Date:

June 28, 1991

Export Citation:

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Assignee:

JEOL LTD

International Classes:

G01J3/45; G01N21/65; (IPC1-7): G01J3/45

Attorney, Agent or Firm:

Hiroshi Nirazawa (7 outside)

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