Abstract:
A system (10) for detecting and analyzing chemical and biological constituents in a sample (12). The system (10) includes a spectrometer (18) for passively receiving emissions (22) from the sample (12) to detect the constituents therein. A cold device (28) is positioned within the field-of-view of the spectrometer (18) at an opposite side of the sample (12) from the spectrometer (18). The cold device (28) provides a low temperature background relative to the sample (12) so as to increase the emissions (22) from the sample (12) and also to reduce the background emission. The system may further comprise a sample chamber (14) for containing the sample. Alternatively, the system may comprise a transmission sample window onto which the sample is provided or the system may be arranged for remotely investigating a sample cloud in the free atmosphere.
Abstract:
The present invention relates to a new analysis method to determine chemical compositions and states of metal materials. It includes the continuous steps of: using metallic discharge electrodes to perform the continuous spark discharge on the sample which is moved relative to the electrodes; dispersing the excited spark spectrum to form the linear spectrum with preset wavelength; recording the positions of every single spark discharge and the spectrum signals rapidly and at real-time; transferring the spectrum signals into electrical signals which are then inputted into signal memory; using a computer to statistically analyze the linear spectrum obtained from the single spark discharge, by which the distribution of chemical compositions, segregation, porosity and inclusion in the sample are resulted and then outputting these results. According to the present invention, the sample is subject to continuous excitation and synchronous scanning without pre-sparking, and every single spark spectrum signals is rapid collected and digital analyzed. Thus the original state of inclusion in sample without re-melting is obtained and various parameters for elements in sample, such as chemical compositions, segregation, porosity and inclusion content and distribution of these parameters are able to be simultaneously determined with one time scanning.
Abstract:
Disclosed is an optical spectroscopy device (1) and a method for the production thereof. The inventive device comprises at least one light source (8) and at least one integrated spectrometer (3). The optical components of the at least one spectrometer (3) are optical microcomponents (11, 13, 16, 19, 20, 21) which are integrated into the top and/or bottom side (9, 12) of a support plate (2). According to the inventive method, at least one light source (8) is arranged on a support plate (2) and at least one spectrometer (3) is monolithically produced in a three dimensionally integrated form on said support plate (2). The spectrometer produced according to the inventive method (3) is made from optical microcomponents (11, 13, 16, 19, 20, 21).
Abstract:
This invention presents a spectroscopic analyzing apparatus, which can increase the SN ratio, by executing an optimal spectroscopic analysis of light from a light source, which gives different light spectrum inherent to the component to be measured and has a different strength distribution according to the light emitting position therein, for example, light emitted from ICP. This invention comprises a light source (2), which emits different light spectra, each light spectrum being inherent to a component to be measured and having a different strength distribution according to the respective light emitting position; a spectroscope (6) for dispersing the light from the light source (2) according to its wavelength; at least one CTD photo sensor (8a - 8c) for sensing light being dispersed by the spectroscope (6) and lying within a specific wavelength range; and an optical system(9) for analyzing the light sensed by said at least one CTD photo sensor (8a - 8c), thereby making an image of the light source (2).
Abstract:
An inductively coupled plasma spectrometer including shielding/sampling means (1) located between a plasma torch (3) and an optical system (4) of the spectrometer, wherein said shielding/sampling (1) means is associated with an enclosure (9) for the plasma torch such that a relatively high independance path (10, 11) is established for limiting flow of electrical current between said shielding/sampling means (1) and said enclosure (9).
Abstract:
An emission microscope system includes in various embodiments a catadioptric optical microscope and/or a computer automated optical dispensing system and/or a cryogenically cooled back thinned CCD camera. The system also includes a computer controlled data acquisition system with specially tailored software.