Smart fiber optic sensors systems and methods for quantitative optical spectroscopy

摘要

Smart fiber optic sensors, systems, and methods for performing quantitative optical spectroscopy are disclosed. In one embodiment, smart fiber optic sensor can include a sensing channel, a calibration channel, and a pressure sensing channel. External force or pressure can be calculated at pressure sensing channel for monitoring and controlling pressure at a sensor-specimen interface thereby ensuring more accurate specimen spectral data is collected. Contact pressure can be adjusted to remain within a specified range. A calibration light of the calibration channel and an illumination light of the sensing channel can be generated simultaneously from a shared light source. Pressure sensing channel can transmit light from a second light source and collect pressure spectral data.

主权项

1. A smart fiber optic sensor comprising:
a sensing channel for illuminating a specimen and for collecting spectral reflections from the specimen from which specimen spectral data can be determined; a pressure sensing channel for collecting pressure sensor spectral reflections from which a contact pressure can be determined; a calibration channel for obtaining calibration spectral reflections usable for correcting the specimen spectral data; and a first light source for transmitting light having a first emission spectra to the sensing channel and calibration channel and a second light source for transmitting light having a second emission spectra to the pressure sensing channel, wherein the first and second emission spectra are non-overlapping.