Abstract:
The reflection properties of an object are determined with a detector by irradiating the object with at least one source of energy, preferably light, where the reflected energy is detected. An intensity related signal is formed for at least one spectral band in the detection. The detector and the object are moved mutually while the object is present within the visual field of the detector. Successive signal levels of a selected intensity related signal are compared, scanned signal levels being selected as representation of the reflected energy in response to the relation between signal levels of the selected intensity related signal. This is particularly expedient in the determination of reflection properties of skin since, because of current comparison of successive signal levels, it is possible to select precisely the latest signal level which represents the reflection properties of the skin before the skin changes its colour because of the engagement pressure of the detector with the skin.
Abstract:
A measuring device (10) and a measurement method measure a concentration of gaseous/aerosol components of a gas mixture. A reaction carrier (14) has a flow channel (42) defining a reaction chamber (46) having a optically detectable reaction material (48), that reacts with a gas mixture component or with a reaction product. The measuring device (12) includes a gas-conveying assembly (2) with a gas-conveying apparatus (28) conveying the gas mixture and a detection assembly (3), which has a lighting apparatus (37) for lighting the reaction chamber (46), an optical sensor (38) for sensing the optically detectable reaction, and an evaluating unit (4) evaluating sensor data and determining a concentration of the component of the gas mixture. The detection assembly (3) senses a speed of a reaction front (6) propagating in the flow direction in the reaction chamber (46) and determines a preliminary concentration from the speed of the reaction front (6).
Abstract:
A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data from a coated surface having a target coating theron; and determining, using the processor, whether the data includes any outlier data points. The method also includes removing, using the processor, at least one of the outlier data points to produce final spectral reflectance data; and calculating, using the processor, a characteristic of the target coating based at least in part on the final spectral reflectance data.
Abstract:
An analyzer analyzes a specimen on basis of an absorbance of a reaction liquid of the specimen and a reagent and includes a measuring unit that measures absorbances of two or more identifying samples having different concentrations and having absorbance characteristics such that there is no extremum in a wavelength band including a desired wavelength to be measured and also measures an absorbance of a reaction liquid; a calculating unit that calculates a gradient of a straight line indicating a relationship between the concentrations and the absorbances of the identifying samples; a correcting unit that corrects the absorbance of the reaction liquid by using a reference gradient of a straight line indicating a relationship between concentrations and absorbances of the identifying samples obtained in advance for the desired wavelength, and the calculated gradient; and an analyzing unit that analyzes the specimen on the basis of the corrected absorbance.
Abstract:
Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.
Abstract:
Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.
Abstract:
Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.
Abstract:
Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.
Abstract:
Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An apparatus for detecting biochemical interactions occurring on the surface of a biosensor includes a light source. A first optical fiber is coupled to the light source and illuminates the biosensor. A second optical fiber detects a wavelength reflected from the biosensor. A spectrometer determines spectra of a reflected signal from the biosensor.