The invention relates to a device (10) comprising a support (14) having a wave guide (42) allowing the propagation of light of at least one wavelength, generating evanescent waves outwards. According to the invention, the device comprises means for receiving a liquid sample, designed to receive the liquid sample upon contact of the wave guide (42) in such a way as to impregnate the wave guide with a portion of the liquid sample, and actuatable means for breaking the contact between the liquid sample and the wave guide (42).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
G01N 21/43 - RefractivityPhase-affecting properties, e.g. optical path length by measuring critical angle
G01N 21/49 - Scattering, i.e. diffuse reflection within a body or fluid
The invention relates to a device (10) comprising a support (14) having a wave guide (42) allowing the propagation of light of at least one wavelength, generating evanescent waves outwards. According to the invention, the device comprises means for receiving a liquid sample, designed to receive the liquid sample upon contact of the wave guide (42) in such a way as to impregnate the wave guide with a portion of the liquid sample, and actuatable means for breaking the contact between the liquid sample and the wave guide (42).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
G01N 21/43 - RefractivityPhase-affecting properties, e.g. optical path length by measuring critical angle
The invention relates to a device (10) comprising a support (14) having a wave guide (42) allowing the propagation of light of at least one wavelength, generating evanescent waves outwards. According to the invention, the device comprises means for receiving a liquid sample, designed to receive the liquid sample upon contact of the wave guide (42) in such a way as to impregnate the wave guide with a portion of the liquid sample, and actuatable means for breaking the contact between the liquid sample and the wave guide (42).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
means (504, 506) for protecting the curved portion (15) against external mechanical stress, while ensuring that a contact area (30) exists between the external medium and said curved portion (15).
G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
The present invention relates to a head (500) for a sensor comprising two sections of optical fibre enabling the propagation of infrared light having at least one infrared wavelength and generating evanescent waves toward the outside in order to detect infrared signatures of an external medium, said head (500) comprising: an optical fibre forming a curved portion (15) for connecting the two sections of fibre, and for engaging with the external medium so as to detect the infrared signatures interfering with the propagation of the evanescent waves propagating along the fibre; and a means (504, 506) for protecting the curved portion (15) against external mechanical stress, while ensuring that a contact area (30) exists between the external medium and said curved portion (15).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
The present invention relates to a head (500) for a sensor comprising two sections of optical fibre enabling the propagation of infrared light having at least one infrared wavelength and generating evanescent waves toward the outside in order to detect infrared signatures of an external medium, said head (500) comprising: an optical fibre forming a curved portion (15) for connecting the two sections of fibre, and for engaging with the external medium so as to detect the infrared signatures interfering with the propagation of the evanescent waves propagating along the fibre; and a means (504, 506) for protecting the curved portion (15) against external mechanical stress, while ensuring that a contact area (30) exists between the external medium and said curved portion (15).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G01N 21/85 - Investigating moving fluids or granular solids
patents
