Calibration for fabry perot spectral measurements

    公开(公告)号:US10578487B2

    公开(公告)日:2020-03-03

    申请号:US15709370

    申请日:2017-09-19

    Abstract: A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity transmitted through the tunable Fabry-Perot etalon. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements using multiple source wavelengths and multiple settable gaps.

    SIGNAL PROCESSING FOR TUNABLE FABRY-PEROT INTERFEROMETER BASED HYPERSPECTRAL IMAGING

    公开(公告)号:US20180128682A1

    公开(公告)日:2018-05-10

    申请号:US15793800

    申请日:2017-10-25

    CPC classification number: G01J3/45 G01J3/0297 G01J3/26 G01J3/28

    Abstract: A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements. For a calibration measurement, a settable gap is selected and a set of input monochromatic source wavelengths is used to measure responses at a detector after transmission through the Fabry-Perot etalon. Each input monochromatic source wavelength is also measured using a radiometer to scale detector measurements.

    Signal processing for tunable Fabry-Perot interferometer based hyperspectral imaging

    公开(公告)号:US10323985B2

    公开(公告)日:2019-06-18

    申请号:US15793800

    申请日:2017-10-25

    Abstract: A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements. For a calibration measurement, a settable gap is selected and a set of input monochromatic source wavelengths is used to measure responses at a detector after transmission through the Fabry-Perot etalon. Each input monochromatic source wavelength is also measured using a radiometer to scale detector measurements.

    CALIBRATION FOR FABRY PEROT SPECTRAL MEASUREMENTS

    公开(公告)号:US20180080825A1

    公开(公告)日:2018-03-22

    申请号:US15709370

    申请日:2017-09-19

    CPC classification number: G01J3/26 G01J3/0297 G01J3/28

    Abstract: A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity transmitted through the tunable Fabry-Perot etalon. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements using multiple source wavelengths and multiple settable gaps.

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