Abstract:
The dispersion photometer described is designed particularly for the kinetic determination of total proteins and has a light source (20), an optical system, a removable optical cell (24) in the sample chamber, a stirrer, a photo-electric sensor (38) which receives light scattered forward at an angle, and an electronic processing and display unit (46) connected in series with the photo-electric sensor (38). All the elements located between the light source (20) and the optical cell (24), and between the optical cell (24) and the photo-electric sensor (38), have a coefficient of transmission or reflection in the visible region of the spectrum which is as high as possible, and do not reflect or absorb selectively.
Abstract:
A thin, compact reflectometer is adapted to support and position a generally planar test element (E, E min ) in a predetermined plane during usage. The reflectometer (10) includes a light source (32; 34) and a detector (40) having major portions of their respective illumination and detection axes (35, 41) extending generally parallel to planar reflectometer-positioning portion (15) on one of two major surfaces of the reflectometer.
Abstract:
An apparatus and method for analysing a gas of the kind adapted to produce an interference pattern displacements of which are indicative of changes of the constitution of the gas involves exposing an array 8 of photosensitive elements to the interference pattern. Respective digital indications of the intensity of the interference pattern falling on the elements are produced by means of a timing circuit 16 adapted to clock data out of the array 8 as a series of analogue pulses which are held by a fast peak detector 17 and converted by an analogue-to-digital converter 18 into digital indications. The position of a principal peak of the interference pattern is then determined by means of a microprocessor (not shown) adapted to determine the best fit of the digital indications with appropriate pre-stored values.
Abstract:
A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data (10) from a coated surface having a target coating theron; and determining (18), using the processor, whether the data includes any outlier data points (20). The method also includes removing (22), using the processor, at least one of the outlier data points to produce final spectral reflectance data (32); and calculating (34), using the processor, a characteristic of the target coating based at least in part on the final spectral reflectance data.
Abstract:
In an automatic analyzer which includes a reaction container (303) which contains reaction solution (304) therein, a light source which emit light to be transmitted through the reaction solution, a spectral detector which measures the light transmitted through the reaction solution, a memory which stores light measurement data measured by the spectral detector and a CPU which calculates the light measurement data stored in the memory to obtain a light intensity, wherein the spectral detector measures the light (302) over an entirety of an area from one end to the other end of the reaction container at a portion where the reaction solution reserves, the memory stores the light measurement data measured by the spectral detector, and light measurement data in an area where the reaction solution exists (313) is obtained from the memory to calculate a light intensity. Defective signal regions due to foreign matter in the reaction solution are disregarded.
Abstract:
The invention relates to a device for inspecting eggs for the presence of blood. The device comprises a light source in order to pass light at a first wavelength which is not selectively absorbed by blood and light at a second wavelength which is selectively absorbed by blood through an egg to be inspected. Furthermore, the device comprises detection means for converting the light transmission through the egg to be inspected for each of the two wavelengths into corresponding signals, each of the said signals being representative of the light transmission at the relevant wavelength. The device also comprises signal-processing means which are transmission associated with the first wavelength and the light transmission associated with the second wavelength based on the signals emanating from the detection means and to emit a decision signal which is representative of the decision whether or not an egg contains blood on the basis of this ratio. According to the invention, the light source comprises one or more identical LED's (Light Emitting Diode) for generating light which passes through the egg. In use the one or more LED's emit light within a certain narrow spectrum, which spectrum comprises both the first and the second wavelength.
Abstract:
PROBLEM TO BE SOLVED: To provide an autoanalyzer that is constituted so as to measure the concentration or presence of a target component in a biological sample, such as blood, urine, etc. and is equipped with the position detecting function of a reaction container requiring no detection plate or the function of removing the effect exerted on absorbance due to the foreign matters in the reaction container. SOLUTION: In the autoanalyzer having the reaction vessel which stores a reaction liquid, a light source for emitting the transmission light transmitted through the reaction liquid, a spectral detector for spectrally measuring the transmission light, a memory for storing the photometric data measured by the spectral detector and a CPU for operating the luminous intensity of the photometric data stored in the memory, the photometry due to the spectral detector is performed, with respect to the place where the reaction liquid is stored over the whole section from one end of the reaction vessel to the other end and the measured photometric data are stored in the memory. The data of the section where the reaction liquid is present are calculated from the photometric data stored in the memory and luminous intensity are calculated. COPYRIGHT: (C)2007,JPO&INPIT