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TII Spectrometry Documentation - Home TII Spectrometry Documentation - Home
  • Tokyo Instruments
  • 1. Installation
  • 2. Recording Spectra
    • 2.1. General Use
    • 2.2. Supported Devices
    • 2.3. Using Multiple Spectrometers
    • 2.4. Time-Lapse Recordings
  • 3. Analysis
    • 3.1. Time-Lapse Analysis
    • 3.2. Colorimetry
    • 3.3. Radiometry
    • 3.4. Modeling
  • 4. Application Examples
    • 4.1. The Solar Spectrum
    • 4.2. Colorimetry of Light Sources & Color Charts
    • 4.3. Radiometric Analyis of Light Sources
    • 4.4. Plastic Identification
    • 4.5. Remote Control
  • 5. Appendices
    • 5.1. Fast Fourier Transform (FFT) Applied to FTIR Data
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Appendices

5. Appendices#

  • 5.1. Fast Fourier Transform (FFT) Applied to FTIR Data
    • 5.1.1. Phase Correction
    • 5.1.2. Extracting the Sample Spectrum
    • 5.1.3. Results
    • 5.1.4. An Annotated Example
      • 5.1.4.1. Loading CSV Data
      • 5.1.4.2. Padding
      • 5.1.4.3. Phase Extraction
      • 5.1.4.4. Calculating the Spectrum
      • 5.1.4.5. Calculating the Wavenumber Axis
      • 5.1.4.6. Apodization

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5.1. Fast Fourier Transform (FFT) Applied to FTIR Data

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