Devices, systems and methods for sorting and labeling food products are provided. Respective spectra of food products for a plurality of segments of a line are received at a controller from at least one line-scan dispersive spectrometer configured to acquire respective spectra of the food products for the plurality of segments of the line. The controller applies one or more machine learning algorithms to the respective spectra to classify the plurality of segments according to at least one of one or more food parameters. The controller controls one or more of a sorting device and a labeling device according to classifying the plurality of segments to cause the food products to be one or more of sorted and labeled according to the at least one of the one or more food parameters.

A method and device for the optical scanning of a chromatographic sample (3), where a sample plate (2) holding the sample (3) is illuminated with light from a first illumination device (13) and the light emitted by the sample plate (2) is detected by an optical detector device (15) which detects in cell form or area form, a second illumination device (14) is preferably firstly activated in a preparation step. The sample plate (2) is displaced in a first displacement direction relative to the detector device (15), illuminated by the first illumination device (13) and a first measurement image is recorded. The sample plate (2) is displaced in a second displacement direction relative to the detector device (15), illuminated by the second illumination device (14), and a second measurement image is recorded.

A laminated fluorescent sensor includes a sealable sensor housing and an optical sensing system embedded inside the sealable sensor housing. The optical sensing system includes a light source (7), a short wave pass filter (8), an air chamber (10), a sensing unit, a long wave pass filter set (12) and an optical signal collecting unit from top to bottom all of which are coaxially set. The optical signal collecting unit is connected with a signal processing system (14); the sealable sensor housing has air inlets (2, 201) and an air pumping port (3), the air inlets (2, 201) are communicated with the air chamber (10) through an air intake passage, the air chamber (10) is communicated with the air pumping port (3) through an air pumping passage.

A device for measuring a matter flux, including: at least one first light source to emit a first light beam having a measurement wavelength corresponding to the absorption wavelength of an element of interest of the matter flux; an optical connector; and a light sensor to receive, via the optical connector: an attenuated beam resulting from a transmission of the first light beam through the matter flux; and a non-attenuated beam resulting from a transmission of the first light beam without passing through the matter flux. The light sensor is one-dimensional and the optical connector is positioned relative to the light sensor so that the center of the optical connector is aligned with the center of the light sensor, the non-attenuated beam is spectrally directed towards a first part of the light sensor and the attenuated beam is spectrally directed towards a second part of the light sensor.

A device for measuring a matter flux, including: at least one first light source to emit a first light beam having a measurement wavelength corresponding to the absorption wavelength of an element of interest of the matter flux; an optical connector; and a light sensor to receive, via the optical connector: an attenuated beam resulting from a transmission of the first light beam through the matter flux; and a non-attenuated beam resulting from a transmission of the first light beam without passing through the matter flux. The light sensor is one-dimensional and the optical connector is positioned relative to the light sensor so that the center of the optical connector is aligned with the center of the light sensor, the non-attenuated beam is spectrally directed towards a first part of the light sensor and the attenuated beam is spectrally directed towards a second part of the light sensor.

A method and device for the optical scanning of a chromatographic sample (3), where a sample plate (2) holding the sample (3) is illuminated with light from a first illumination device (13) and the light emitted by the sample plate (2) is detected by an optical detector device (15) which detects in cell form or area form, a second illumination device (14) is preferably firstly activated in a preparation step. The sample plate (2) is displaced in a first displacement direction relative to the detector device (15), illuminated by the first illumination device (13) and a first measurement image is recorded. The sample plate (2) is displaced in a second displacement direction relative to the detector device (15), illuminated by the second illumination device (14), and a second measurement image is recorded.

A laminated fluorescent sensor includes a sealable sensor housing and an optical sensing system embedded inside the sensor housing. The optical sensing system includes a light source (7), a short wave pass filter (8), an air chamber (10), a sensing unit, a long wave pass filter set (12) and an optical signal collecting unit from top to bottom all of which are coaxially set. The optical signal collecting unit is connected with a signal processing system (14); the sensor housing has air inlets (2, 201) and an air pumping port (3), the air inlets (2, 201) are communicated with the air chamber (10) through an air intake passage, the air chamber (10) is communicated with the air pumping port (3) through an air pumping passage. The laminated fluorescent sensor is compact and easy to be arrayed for simultaneously detecting two or more detected objects, has a high signal-to-noise ratio, is applicable in quick detection of micro-trace chemicals including but not limited to explosives and narcotics, provides great detection effects, has distinctly distinguishable signal responses to objects not being detected and to objects being detected, and provides stable and accurate detection.

A device and system for optically analyzing food products is provided. The device comprises first and second imaging devices respectively sensitive to first and second wavelengths; the imaging devices include a line-scan camera to acquire images of food products at a line in a food-path-facing direction, and a line-scan spectrometer to acquire spectroscopic images at the line. The device includes an optical filter configured to: convey the first wavelengths from the line to the first imaging device; and convey the second wavelengths from the line to the second imaging device. The device includes a frame to align the optical filter and respective optical axes of the first and second imaging devices, relative to each other and the food-path-facing direction, such that the first imaging device and the second imaging device are optically aligned via the optical filter to image the line.

A device for detecting a mixture ratio of two components of a textile fabric contains a radiation source for transmitting electromagnetic radiation in a spectral band in the direction of the textile fiber structure, a radiation sensor for receiving at least a part of the electromagnetic radiation, and a spectral filter with spectral properties in the spectral band for filtering at least one part of the electromagnetic radiation. The transmittance of the spectral filter in the spectral band has at least one local maximum and at least one local minimum. The spectral properties of the spectral filter in the spectral band are adapted to the spectral properties of the radiation source and each of the two components such that a radiation intensity received by the radiation sensor is a monotonous function of the mixture ratio of the two components. The device is simple in design and allows the use of spatially resolving imaging radiation sensors.

A method for capturing an image of a moving object in a rotary system, for example, an image of a rotating blade in a gas turbine, uses an endoscope to form an image of a moving object. One-dimensional line images are captured with a line scan image sensor which is oriented to lie orthogonal to the direction of movement of the image of the moving object past the image sensor. Successive line images are combined to form a composite two-dimensional image of the moving object. A second image may be detected using a second line scan image sensor oriented orthogonal with respect to the direction of movement of the image, to the first line scan image sensor.