Abstract:
The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross- sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically crosssection reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.
Abstract:
A probe (118) is provided for use in determining at least one characteristic of contents within a fuel tank. The probe (118) includes a plurality of analysis elements (302). Each analysis element (302) has an input (308) for inputting light to a sampling region (316) to be analysed and an output (310) for outputting light that has passed through the sampling region (316) from the input (308). A system including a probe (118) and a spectrometer (406) is also provided. The probe (118) may be mounted to a interior wall of an aircraft fuel tank, or to a rib (112,116) within an aircraft wing (104,106).
Abstract:
The invention relates to a reaction container and a method for producing the reaction container, and provides a low-cost reaction container which is capable of consistently, quickly, and efficiently performing a process that includes a reaction such as extraction or amplification of a nucleic acid, while saving user's trouble without increasing the scale of the device. The reaction container is configured to comprise: one or two or more housing parts for reactions comprising: a narrow-mouthed piping part in which a reaction reagent or a portion thereof is housed or is housable; a wide-mouthed piping part that is communicated with the narrow-mouthed piping part and provided on an upper side of the narrow-mouthed piping part, and has an aperture that is wider than an aperture of the narrow-mouthed piping part; and a punchable film provided such that it partitions an interval between the wide-mouthed piping part and the narrow-mouthed piping part.
Abstract:
A method and apparatus for dating a dating a body sample, such as blood, includes taking at least one spectroscopic measurement (37) of the sample at least two predetermined positions in the spectrum having spectral characteristics corresponding to at least two predetermined substances present in the sample that have a time varying relationship with each other. A measured relative concentration of each of the predetermined substances is then determined (41) from the measurement, and the measured relative concentrations of the two predetermined substances is compared (43) with a known variation of the relative concentrations of the two predetermined substances over time. A good fit of the measured relative concentrations to the known variation of the relative concentrations is then determined, so as to provide an indication of the age of the sample (44). Alternatively, instead of measuring the relative concentrations of each of the predetermined substances, the rate of change of the relative concentrations is determined.
Abstract:
The invention relates to a device for analyzing luminescent bio-microchips that comprises a holder (1) for a specimen (2), means (3) for illuminating the same, an optical system with a filter (6) for separating the luminescence light from the specimen, and means (7) for fixing an image of the specimen. The means (3) for illuminating the specimen comprises laser sources (16, 17, 18) for exciting a fluorescent radiation, and an optical fiber system for distributing the laser radiation. According to the invention, the optical system includes two objectives (4, 5) facing each other, and the object holder (1) is capable of positioning the specimen to be analyzed on the surface thereof oriented towards the optical system, while the laser sources (16, 17, 18) for exciting a fluorescent radiation include at least two lasers (16, 18) having different wavelengths, the filter (6) being a multi-layered one.
Abstract:
Improving processing power of a biosensor detection apparatus for measurement while preventing structural complication and size increase in the apparatus. Providing one or more spectrometers (20) configured to spectrally separate each light beam (Lr) reflected from each of a plurality of measurement regions defined on a biosensor (10) simultaneously and one or more optical receivers (30) configured to receive each light beam (Ls) spectrally separated by the one or more spectrometers (20) simultaneously, thereby enabling the apparatus to obtain a spectral intensity distribution of each light beam (Ls) separately.
Abstract:
The present invention relates generally to the field of biochemical laboratory instrumentation for different applications of measuring properties of samples on e.g. microtitration plates and corresponding sample supports. The object of the invention is achieved by providing an optical measurement instrumentation wherein a sample (281-285) is activated (212AS, 218AS) and the emission is detected (291, 292), wherein between the activation and detection phases of measuring the sample, a shift is made in the relative position between the sample and means (218) directing the activation radiation to the sample as well as in the relative position between the sample and the means (293) receiving the emission radiation from the sample. This can be implemented e.g. by moving (299) the sample assay plate and/or a measuring head between the activation and emission phases of a sample. The invention allows a simultaneous activation of a first sample and detecting emission from a second sample thus enhancing efficiency of the measurement.
Abstract:
Computation -saving techniques and stability-adding techniques provide for fast, accurate reconstructions of a time series of images involving large scale 3D problems, such as real-time image recovery in an optical tomography imaging system. A system equation for a target medium (116) such as a tissue is solved using a Normalized Difference Method (NDM) (250). Because of the inherent stability of the NDM solutions, a weight matrix (W) of the system equation can be provided for a given point in a time series (220), then reused without recalculation at subsequent points. Further saving are achieved by decomposing W using singular value decomposition or direst matrix decomposition, transforming it to reduce its dimensions, and/or scaling it to achieve a more stable numerical solution. Values of measured energy (112) emerging from the target medium are back-substituted into the system equation for the different points to obtain the target medium properties.
Abstract:
A compact handy type inspection instrument is provided for conducting readily nondestructive inspection of an inspection object in any working site. The inspection instrument comprises:
a spectroscope assembly containing an optical fiber-arranging member for arranging and holding a light-outputting end of an optical fiber bundle to be flat in a uniform layer thickness, a packaged compact spectroscope which is enclosed in a package having a slit-shaped light inlet window on a side confronting the rectilinear light-outputting end of the optical fiber-arranging member and is constituted of a linear type continuous variable interference filter, a microlens array, and a linear type silicon array sensor assembled in the named order from the side of the light inlet window toward the opposite side, and a positioning means for positioning the rectilinear light-outputting end of the optical fiber bundle to fit to the light input window; and a detection head; incorporated together into a main body casing.