The present disclosure includes a method for correcting a primary measurement signal detected by an optical detector. The method includes: emitting a first light signal from a light source to an active sensor layer such that the active sensor layer is stimulated and emits a second light signal, which is detected by an optical detector; determining the primary measurement signal of a primary measurement parameter based on the second light signal and/or the first light signal; determining a secondary measurement signal of a secondary measurement parameter that is different from the primary measurement parameter based on the first light signal or the second light signal; comparing the determined secondary measurement signal with a first limit value; and correcting the primary measurement signal when the secondary measurement signal exceeds the first limit value, wherein correcting the primary measurement signal comprises smoothing the primary measurement signal by filtering.

Method of processing real-time PCR data, comprising: c) receiving a plurality of fluorescence melting curve data of real time PCR-experiments performed by a real-time PCR device with at least two fluorescence channels, and configured to perform the following steps multiple times, while increasing a temperature: i) at first moments in time measuring a first temperature value and a first radiation value corresponding to a first fluorescence channel; ii) at second moments in time measuring a second temperature value and a second radiation value corresponding to a second fluorescence channel; d) storing the plurality of temperature values and radiation values; e) determining a plurality of time-shifted second radiation values by linearly interpolating between two measured second radiation values, using weighting factors defined by the measured temperature values; f) after performing step e), calculating color corrected first radiation values, and color corrected second radiation values.

This inspection tube drive control device is provided with: an inverse analysis unit (83) which performs an analysis to move a flexible tube along a predetermined route within an object being inspected, from a start point to a target point of the route; and a forward analysis unit (84) which, on the basis of analysis results from the inverse analysis unit (83), acquires, as analysis operation amounts, operation amounts for an attitude actuator capable of adjusting the attitude of the tube when the tube is positioned at each position on the route, and an advancing and retreating actuator which causes the tube to advance and retreat.

A turbidity measurement method includes irradiating a first irradiation light L1 having a first spectrum E1, detecting a first measured light ML1 based on the first irradiation light L1, irradiating a second irradiation light L2 having a second spectrum E2 different from the first spectrum E1, detecting a second measured light ML2 based on the second irradiation light L2, calculating turbidity of a liquid to be measured, and correcting at least one of a first parameter related to turbidity calculation associated with the first irradiation light L1 and a second parameter related to turbidity calculation associated with the second irradiation light L2 so that the calculated turbidity of the liquid to be measured corresponds to the turbidity of the liquid to be measured as measured using another light source serving as a standard of comparison.

A method for measuring a quantity of a gaseous species—present in a gas and able to absorb light in an absorption spectral band—comprises: arranging the gas between a light source and a measurement photodetector, the light source being suitable for emitting an incident light wave propagating through the gas to the measurement photodetector, which is suitable for detecting a light wave transmitted by the gas, in the absorption spectral band; illuminating the gas by the light source; measuring, by the measurement photodetector, a measurement intensity of the light wave transmitted by the gas, in the absorption spectral band; measuring, by a reference photodetector, a reference intensity of a reference light wave being emitted by the light source. The method comprises a correction of the reference intensity by consideration of a parametric model, the parameters of the model being determined according to reference intensity measurements performed at various times.

A spectrometer system may be used to determine one or more spectra of an object, and the one or more spectra may be associated with one or more attributes of the object that are relevant to the user. While the spectrometer system can take many forms, in many instances the system comprises a spectrometer and a processing device in communication with the spectrometer and with a remote server, wherein the spectrometer is physically integrated with an apparatus. The apparatus may have a function different than that of the spectrometer, such as a consumer appliance or device.

A spectral curve acquiring device comprising: a light receiving optical system (6) for irradiating an irradiating light, a light receiving optical system (8) for dispersing and receiving a reflected irradiating light reflected by an object to be measured (7), a distance meter (4) for measuring a distance to the object to be measured, a storage module (25) for storing a plurality of reference spectral curves prepared based on a light receiving intensity for each wavelength at the time of measuring a white reference plate with different distances, and a control arithmetic module (24), wherein the control arithmetic module obtains a light receiving intensity of the dispersed reflected irradiating light for each wavelength based on the reference spectral curve corresponding to a distance to be measured, corrects a measurement spectral curve prepared based on the light receiving intensity, and prepares a spectral reflectance curve.

Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.

An image acquisition apparatus includes a spatial light modulator, an optical scanner, a detection unit, a control unit. The spatial light modulator performs focused irradiation on irradiation regions on a surface or inside of an observation object with modulated excitation light. The detection unit has imaging regions in an imaging relation with the irradiation regions on a light receiving surface, each of the imaging regions corresponds to one or two or more pixels, and a pixel that corresponds to none of the imaging regions exists adjacent to each imaging region. The control unit corrects a detection signal of a pixel corresponding to each imaging region on the basis of a detection signal of the pixel that exists adjacent to the imaging region and corresponds to none of the imaging regions, and generates an image of the observation object on the basis of the corrected detection signal.

This disclosure relates generally to a sampling device, and more particularly, a sampling device that facilitates spectroscopic measurements with a variable path length and the necessary software controlled algorithms and methods for such a device.