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 spatial gradient-based fluorometer featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off fluorophores in a liquid and sensed by a linear sensor array having a length and rows and columns of optical elements; and determine corresponding signaling containing information about a fluorophore concentration of the liquid a fluorophore concentration of the liquid that depends on a spatial gradient of the light reflected and sensed along the length of the linear sensor array, based upon the signaling received.

An optical sensor for spectroscopic analysis of a sample, the optical sensor comprising: a photonic integrated chip (PIC) for providing light to the sample, the PIC comprising: one or more laser(s) designed to operate at one or more respective predetermined wavelength(s), each of the one or more laser(s) having an output that is optically coupled to an optical output of the PIC; and a monitor located on the PIC for determining the wavelength of the optical output; the optical sensor further comprising: a detector for collecting a spectrum from the sample; and one or more processors configured to: compare the wavelength of the laser(s) at the optical output with each of their respective predetermined wavelength(s); and if a deviation above a certain threshold is detected between the wavelength of the laser(s) and the predetermined wavelength(s), adapt the collected spectrum to generate a reconstructed spectrum; and use one or more datapoints from the reconstructed spectrum for the spectroscopic analysis.

A system comprised of an apparatus and a test device is described. The test device and the apparatus are designed to interact to determine the presence or absence of an analyte of interest in a sample placed on the test device.

A spatial gradient-based fluorometer featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off fluorophores in a liquid and sensed by a linear sensor array having a length and rows and columns of optical elements; and determine corresponding signaling containing information about a fluorophore concentration of the liquid a fluorophore concentration of the liquid that depends on a spatial gradient of the light reflected and sensed along the length of the linear sensor array, based upon the signaling received

A turbidity sensor featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off suspended matter in a liquid and sensed by a linear sensor array having rows and columns of optical elements; and determine corresponding signaling containing information about a concentration of turbidity of the liquid, based upon the signaling received

A swept frequency fluorometer having a signal processor or processing module configured to:

receive signaling containing information about reflected light off one or more fluorescence species-of-interest in a liquid sample that is swept with light having a variable frequency range, the information including a characteristic optical frequency corresponding to a fluorescence species-of-interest in the liquid, and a characteristic/lifetime optical frequency corresponding to a distinct fluorescence lifetime in which the fluorescence species-of-interest remains in an excited state; and

provide corresponding signaling containing information about an identity of the fluorescence species-of-interest detected and distinguished from overlapping fluorescence species in the liquid using the characteristic/lifetime optical frequency, based upon the signaling received

A system comprised of an apparatus and a test device is described. The test device and the apparatus are designed to interact to determine the presence or absence of an analyte of interest in a sample placed on the test device.

A turbidity sensor featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off suspended matter in a liquid and sensed by a linear sensor array having rows and columns of optical elements; and determine corresponding signaling containing information about a concentration of turbidity of the liquid, based upon the signaling received.

A system comprised of an apparatus and a test device is described. The test device and the apparatus are designed to interact to determine the presence or absence of an analyte of interest in a sample placed on the test device.