ocr: Advantages over the dispersive method: Multiplex: Spectra can be obtained rapidly because all wavenumbers are measured simultaneously. Thus, the signal-to-noise ratio can be increased by averaging multiple scans. Throughput: Weak signals can be measured because more light reaches the detector. Opaque or retlective samples can be used. Precision: The wavenumber scale is very precise because it is internally calibrated with a laser.
