A grain-component sensor comprises a white LED for emitting a white light as a light emission source, a sample holder in which a sample is filled, a spectroscope for receiving a reflected light from the sample and performing a spectroscopic analysis, and as optical filter provided on an optical path between the white LED and the sample holder, the optical filter has an optical characteristic that is a transmittance of substantially 100% in a wavelength band from 950 nm to 1100 nm and cuts a light in a visible light region to substantially 0%, a light emitted from the white LED transmits through the optical filter and is irradiated to the sample as a detection light in a wavelength band from 950 nm to 1100 nm, and a diffused reflected light from the sample is condensed by a condenser lens and is entered the spectroscope.

A granular-substance component measuring method comprises steps of emitting detection light to granular substances filled in a space, receiving a reflected light from the granular substances and measuring a component of granular substances by a spectroscopy, and a displacement is given to the granular substances at each measurement, measurements are performed a plurality of times, and measurement results are averaged.

A method for measuring one or more quantities characterizing a composition of a medium includes causing a first non-uniform spatially varying optical signal to impinge on a portion of the medium, processing a second optical signal emitted from the medium in response to the first optical signal including determining characteristics of a spatial variation of the second optical signal, and determining the one or more quantities characterizing the composition of the medium based on the characteristics of the spatial variation of the second optical signal.

Instruments, systems, and methods for measuring optical density of microbiological samples are provided. In particular, optical density instruments providing improved safety, efficiency, comfort, and convenience are provided. Such optical density instruments include a handheld portion and a base station. The optical density instruments may be used in systems and methods for measuring optical density of biological samples.

A deposit detection device according to an embodiment includes a calculation module, a detection module, an interpolation module, and a state management module. The calculation module calculates a region feature amount based on an edge vector of each pixel, for each unit region composed of a predetermined number of pixels included in a captured image. The detection module detects the unit region corresponding to a partial covering location and the unit region corresponding to a diffuse reflection location based on a detection condition and a second detection condition, respectively, the first detection condition and the second detection condition being based on the region feature amount. The interpolation module interpolates the area ratio of the partial covering location reduced due to the diffuse reflection location. The state management module controls state transitions of states related to interpolation of the area ratio, based on increase and decrease of the diffuse reflection location.

The present invention relates to an apparatus and method for monitoring a dry state of an electrode substrate in which electrode slurry is applied to a collector. The monitoring method comprises emitting light onto a surface of the electrode substrate; receiving the light reflected by the surface of the electrode substrate; and analyzing a luminous intensity or spectrum of the received light to estimate a drying rate of the electrode substrate. The apparatus includes a light emitting part emitting light from a light source onto a surface of the electrode substrate; a light receiving part receiving the light reflected by the surface of the electrode substrate; and a computing device analyzing a luminous intensity or spectrum of the received light and comparing analyzed characteristics of the light with the reference data of the reflected light to the drying rate of the electrode substrate.

A method for ascertaining the concentration of at least one material in a powder mixture used as starting material for the production of a component in an additive production method, comprising: providing the powder mixture having at least two different materials; guiding a high-energy beam generated by a radiation source over the surface of the powder mixture; detecting by a detection unit at least one brightness value of at least one subregion of the surface irradiated by the high-energy beam during the irradiation; ascertaining by an analysis unit the concentration of at least one material in the powder mixture depending on the detected at least one brightness value and at least one predetermined reference brightness value for a concentration and/or a concentration range of the material.

A fine ratio measuring device that measures the fine ratio of fines adhering to the surface of the material in the form of lumps includes: an illumination unit that illuminates the material in the form of lumps; an imaging unit that captures an image of the material in the form of lumps and produces image data; and an arithmetic unit including a computation unit that computes a characteristic quantity of the image data produced by the imaging unit and a conversion unit that converts the characteristic quantity computed by the computation unit to the fine ratio.

The present invention belongs to the technical field of new energy detection, in particular to a material uniformity detection device and method. The purpose of the present invention is to provide a material uniformity detection device which can meet the requirement of detection of diversified materials such as biomass slurry aiming at the problem of difficulty in quantifying uniformity state of the biomass slurry. The sample pool is driven by the rotating lifting device for lifting and spiral motion, data collection is performed on the sample pool in the form of a certain path, and an image is established for the relationship between a large number of light intensity values of transmission light and heights measured for multiple times to respectively display the uniformity of horizontal layering and uniformity in the vertical direction, to judge the overall uniformity of the material samples.

Instruments, systems, and methods for measuring optical density of microbiological samples are provided. In particular, optical density instruments providing improved safety, efficiency, comfort, and convenience are provided. Such optical density instruments include a handheld portion and a base station. The optical density instruments may be used in systems and methods for measuring optical density of biological samples.