| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 356317000 |
By light
| 148 |
| 356316000 |
By high frequency field (e.g., plasma discharge)
| 37 |
| 356313000 |
By arc or spark
| 14 |
| 356312000 |
By electrical resistance heating (e.g., graphite tube) | 3 |
| 20100091277 | ATOMIC ABSORPTION SPECTROPHOTOMETER - The present invention has been accomplished to provide an atomic absorption spectrophotometer capable of obtaining measurement data always in the state where the lowest detection limit performance is optimized, without depending on the frequency of the power supply. In a control program which runs on the microcomputer chip | 04-15-2010 |
| 20110273708 | ULTRASENSITIVE DETECTION OF ISOTOPES, CHEMICAL SUBSTANCES AND BIOLOGICAL SUBSTANCES USING LASER WAVE MIXING DETECTORS - Devices and techniques for using four wave mixing in optical sensing of various materials, including isotopes, chemical and biological substances. | 11-10-2011 |
| 20130301045 | ATOMIC ABSORPTION SPECTROMETER - An atomic absorption spectrometer, including: a light source combination; a detection device; a flame atomization device; a hydride generation device; a graphite furnace atomization device; and an adjustment mechanism. The flame atomization device includes a flame atomizer. The hydride generation device includes a hydride atomizer. The graphite furnace atomization device includes a graphite furnace atomizer. An axis of the flame atomizer, an axis of the hydride atomizer, and an axis of the graphite furnace atomizer are adjusted by the adjustment mechanism to coincide with an optical axis of the light source combination. | 11-14-2013 |
| 356315000 |
By flame | 3 |
| 20100134795 | FLAME ATOMIC ABSORPTION SPECTROPHOTOMETER - The present invention provides a flame atomic absorption spectrophotometer in which, when a flashback may occur, a continuous use of this apparatus through an easy operation by a user is prohibited, so that the apparatus cannot be used unless its safety is confirmed. In this apparatus, when a flashback occurrence detector | 06-03-2010 |
| 20100271631 | Sample Excitation Apparatus and Method for Spectroscopic Analysis - Sample excitation apparatus for a spectrometric analyser, the apparatus comprising a sample introduction stage comprising an electrospray nebuliser for generating a nebulised sample; and a sample excitation stage arranged to operate in an atmospheric pressure environment and to receive and excite the nebulised sample in a sample excitation region for spectrometric analysis thereof. ‘Excitation’ includes ionisation in ICP and MIP, flame excitation in AES, and optical excitation in AAS. For example, analyte solution ( | 10-28-2010 |
| 20120140218 | ATOMIC ABSORPTION INSTRUMENT - An atomic absorption instrument has a burner and a mixing apparatus for delivering a combustible mixture to the burner. The mixing apparatus includes a mixing chamber assembly having a plurality of internal delivery passageways. An end cap assembly holds a nebulizer closes a mixing chamber. The end cap assembly has a plurality of internal feed passageways through which fluid from the internal delivery passageways flows into the mixing chamber. Latch mechanisms couple the end cap assembly to the mixing chamber assembly. The latch mechanisms can be operated to remove the end cap assembly. | 06-07-2012 |
| Entries |
| Document | Title | Date |
|---|
| 20080278721 | Methods and systems for monitoring state of plasma chamber - Provided are methods and systems for monitoring a state of a plasma chamber. In the method, an optical characteristic of plasma generated in a plasma chamber including a window is measured in a predetermined measurement wavelength band. A process status index (PSI) is extracted from the measured optical characteristic. A state of the plasma chamber is evaluated by analyzing the extracted PSI. The optical characteristic of the plasma is measured in the predetermined measurement wavelength band in which a transmittance of light passing through the window is substantially independent of a wavelength of the light. | 11-13-2008 |
| 20090046285 | Structure for diagnosis system of reaction process - The present invention relates to a spectroscopy analyzer for real-time diagnostics of process, and more particularly, to a spectroscopy analyzer for real-time diagnostics of process, in which a beam is injected to a reaction byproduct or a reactant and then an output beam is measured, thereby performing quantitative and qualitative analysis of the reaction byproduct or the reactant. | 02-19-2009 |
| 20090051915 | Arrangement for Monitoring Thermal Spray Processes - An arrangement for measuring characteristic properties of a plasma beam in a thermal spray process, including a device for introducing spray materials into the plasma, a one-dimensional or two-dimensional array including first optical waveguides for receiving the light radiation emitted by the plasma, and other optical waveguides for distributing the light radiation emitted by the plasma. A device is provided for splitting the light guided in the first optical waveguides into the other optical wave guides, one optical waveguide being connected to the opening diaphragm of a particle flow arrangement, and the other optical waveguide being connected to the opening diaphragm of a spectrometer. A device is also provided for determining the current state of the spray process. | 02-26-2009 |
| 20090180113 | METHOD AND APPARATUS FOR IDENTIFYING THE CHEMICAL COMPOSITION OF A GAS - Embodiments of the present invention relate to the analysis of the components of one or more gases, for example a gas mixture sampled from a semiconductor manufacturing process such as plasma etching or plasma enhanced chemical vapor deposition (PECVD). Particular embodiments provide sufficient power to a plasma of the sample, to dissociate a large number of the molecules and molecular fragments into individual atoms. With sufficient power (typically a power density of between 3-40 W/cm | 07-16-2009 |
| 20090273781 | APPARATUS AND METHOD FOR MONITORING OF GAS HAVING STABLE ISOTOPES - Gas having stable isotopes is monitored continuously by using a system that sends a modulated laser beam to the gas and collects and transmits the light not absorbed by the gas to a detector. Gas from geological storage, or from the atmosphere can be monitored continuously without collecting samples and transporting them to a lab. | 11-05-2009 |
| 20100238437 | Optical Emission Spectroscopy Device - A spectral analysis apparatus includes a light transmissive envelope, a first and second electrode, a sleeve, and a first and second electrical contact. The light transmissive envelope includes a first end portion and a second end portion and the envelope contains a fluid operable to emit light when electrically energized. The first electrode is disposed upon an external surface of the first end portion and is completely external to the envelope. The second electrode is disposed upon an external surface of the second end portion and is completely external to the envelope. The sleeve defines a cavity configured to removably receive the envelope. The first electrical contact is in communication with the cavity and is configured to electrically connect to the first electrode when the envelope is within the sleeve. The second electrical contact is in communication with the cavity and is configured to electrically connect to the second electrode when the envelope is within the sleeve. The first and second electrical contacts are connectable to an electrical power supply, and the electrodes electrically energize the fluid when electrically connected to the electrical power supply. | 09-23-2010 |
| 20110007310 | On-Line/At-Line Monitoring of Residual Chemical by Surface Enhanced Raman Spectroscopy - Target chemicals are monitored at very low concentrations in pipelines or vessels such as storage tanks using surface enhanced Raman spectroscopy analysis of a sample. A liquid sample having a target chemical such as biocides, corrosion inhibitors, scale inhibitors, anti-foaming agents, emulsion breakers, and hydrate inhibitors are tested while exposed to a prepared and charged surface of a coupon so as to draw the target material to the prepared and charged surface. The charged surface is fairly precisely charged using two other electrodes to calibrate the charge on the surface of the coupon. With the target substance presumably drawn to the coupon, the molecules on the surface of the coupon are excited by monochromatic light such as from a laser to induce vibrations within the molecules. The vibrations of the molecules reflect and scatter the monochromatic light in distinctive manners such that the collected light from the surface provides an indication of the presence of the target substance in the sample and a quantitative indication of the concentration of the target material in the sample. With the ability at lower power and reasonable cost to sense the presence well down below one percent and into the ppm range provides the opportunity to more precisely and efficiently add such chemicals to operating pipelines and storage tanks. | 01-13-2011 |
| 20110109904 | Method and Device for High Speed Quantitative Measurement of Biomolecular Targets on or in Biological Analysis Medium - The present invention relates to a device and method for the high speed quantitative measurement of biomolecular targets on the surface or in the body of a planar medium for biological analysis. The method, according to the invention, includes the following, steps: a) at least two laser beams (F″) are focused and overlaid on each measuring point of said medium by the simultaneous intersection of these beams to extract a contained hot plasma (P), including a measured chemical element present in the targets and another chemical element exogenous to the targets and present in a known quantity on this medium; b) luminous emission rays for each plasma, corresponding to the quantified element and exogenous element, are detected and anglyset each measuring point while measuring the brightness of these rays; then c) the concentration in each measuring point of the quantified element is determined through prior calibration of the rays of the qualified element to determine a correlation between the brightness of the rays, specific to said element, and the concentrations the latter in mixtures of the quantified element and the exogenous element in known proportions. | 05-12-2011 |
| 20110128539 | METHOD FOR QUALITATIVE AND QUANTITATIVE DETERMINING ORGANIC COMPOUNDS OF PRECIOUS METALS IN VARIOUS COMPOSITION ROCKS - A method is proposed for preparation of a sample of various rocks, containing organic compounds of precious metals (such as Au, Pt, and Pt). The sample is usable for further analysis of the metals content. The sample being analyzed is mixed with potassium chloride or sodium chloride in a ratio of 5-to-95 percent, and further subjected to assay fusion with litharge. The resulted entrapped cold shot is dissolved in aqua regia, and its dilute solution is analyzed by the known atomic-absorption method or by the known method of atomic emission with the use of plasma fixed by induction. This method makes it possible to preserve maximum of the metal components being analyzed, whereas the traditional methods of sample preparation cause loss of the most part of organic components containing the precious metals. | 06-02-2011 |
| 20110134423 | ADULTERATED PEANUT OIL DETECTOR AND ADULTERATED PEANUT OIL DETECTION METHOD - The present invention provides an adulterated peanut oil detector and an adulterated peanut oil detection method, and pertains to the technical domain of product analysis. The detector comprises a casing, a LCD and Return key, Enter key, Up key, Down key, a power switch, a power socket, and a USB interface arranged on the casing, and a microprocessor and a power supply unit mounted in the casing and electrically connected to the components on the casing, wherein, a module cover is arranged on the top surface of the casing, and a pretreatment module and a detection module are mounted in the space under the module cover. The pretreatment module comprises a heating body and cuvette slots, and the detection module comprises an axial fan, a radiating plate, a refrigerating plate, and cuvette slots. The detection method comprises sample preheating procedure and slow refrigeration procedure. The detector and method provided in the present invention can quickly and easily detect whether the peanut oil sample is adulterated and the percentage of adulteration, and is applicable to quick on-spot detection of rapeseed oil, sunflower oil, maize oil, cotton oil, palm oil, and soybean oil, etc. admixed in peanut oil. | 06-09-2011 |
| 20110170096 | PROBE FOR NEAR-FIELD LIGHT SCATTERING AND PROCESS FOR PRODUCTION THEREOF - A probe for near-field light scattering, has, on the tip thereof, at least fine particles containing silver or silver oxide, a titanium oxide layer, and a silver layer at least in the named order from the surface thereof. A process for producing the probe for near-field light scattering comprises at least steps of forming a silver layer, a titanium oxide layer, and fine particles containing silver or silver oxide in the named order on the body of the probe. A near-field optical microscope or a Raman spectroscope, comprises the probe for the near-field light scattering; a control function for bringing the probe into contact with a surface of a test sample; an optical excitation system for producing an exciting light to or vicinity of the tip of the probe; and detecting optical system for detecting detection light emitted form the tip of the probe. | 07-14-2011 |
| 20110222057 | METHOD AND DEVICE FOR MEASURING A CHEMICAL COMPOSITION OF A LIQUID METAL SUITABLE FOR COATING A STEEL STRIP - A method and a device measure a chemical composition of a liquid metal suitable for coating a steel strip. The method measures a chemical composition of a liquid metal suitable for coating a steel strip for which the liquid metal is formed continuously in a first cavity, and the composition of the liquid metal is measured on a direct measurement surface thereof, for which a specimen of the liquid metal reaching the measurement surface is heated to a chosen temperature so as to isolate principally iron-based impurities from the measurement surface. Several embodiments of devices suitable for implementing the method are also presented. | 09-15-2011 |
| 20110228268 | Method Of Analyzing A Composition Containing Impurities - A method of analyzing a composition and a method of processing the composition are provided. The composition contains impurities and has a boiling point less than ambient temperature and/or a vapor pressure greater than water at 14.5 ° C. The method of analyzing the composition comprises a step of providing the composition in a liquid state within a vessel. The composition is chilled in the liquid state within the vessel at a temperature below the boiling point of the composition, thereby maintaining the composition in the liquid state. The chilled composition in the vessel is converted to produce at least one of a vaporized composition and a nebulized composition, which converted composition is introduced into an analytical device. A measurement of content of the impurities of the composition is obtained from the analytical device. The method of processing the composition includes the same steps as the method of analyzing the composition, and but further requires that at least a portion of the composition remains in the supply tank. | 09-22-2011 |
| 20110249260 | OPTICAL SCANNING SYSTEM - A scanning sensor system | 10-13-2011 |
| 20120113421 | SYSTEM AND METHOD FOR DETECTING ANALYTES PRESENT IN A GAS SAMPLE - The invention relates to a system ( | 05-10-2012 |
| 20120162642 | Spectrometer - A spectrometer is provided. In one implementation, for example, a spectrometer comprises an excitation source, a focusing lens, a movable minor, and an actuator assembly. The focusing lens is adapted to focus an incident beam from the excitation source. The actuator assembly is adapted to control the movable mirror to move a focused incident beam across a surface of the sample. | 06-28-2012 |
| 20120206721 | NIR FLUORESCENCE OF HEAVY WATER - A method includes detecting D | 08-16-2012 |
| 20130003059 | SIMPLE, LOW POWER MICROSYSTEM FOR SATURATION SPECTROSCOPY - A spectroscopic assembly is provided. The spectroscopic assembly includes a thermal isolation platform, a gas reference cell encasing a gas and attached to the thermal isolation platform, the gas reference cell having at least one optically-transparent window, and at least one heater configured to raise a temperature of the encased gas. When a beamsplitter is configured to reflect a portion of an input optical beam emitted by a laser to be incident on the at least one optically-transparent window of the gas reference cell, the reflected portion of the input optical beam is twice transmitted through the gas. When a detector is configured to receive the optical beam twice transmitted through the gas, a feedback signal is provided to the laser to stabilize the laser. | 01-03-2013 |
| 20130208273 | Ultra-High Efficiency Color Mixing and Color Separation - Methods and apparatus for combining or separating spectral components by means of a polychromat. A polychromat is employed to combine a plurality of beams, each derived from a separate source, into a single output beam, thereby providing for definition of one or more of the intensity, color, color uniformity, divergence angle, degree of collimation, polarization, focus, or beam waist of the output beam. The combination of sources and polychromat may serve as an enhanced-privacy display and to multiplex signals of multiple spectral components. In other embodiments of the invention, a polychromat serves to disperse spectral components for spectroscopic or de-multiplexing applications. | 08-15-2013 |
| 20130242300 | METHODS AND APPARATUS FOR SPECTRAL LUMINESCENCE MEASUREMENT - One embodiment relates to a computer-implemented method of processing spectral luminescence mapping data obtained from a substrate, the substrate having an epitaxial layer stack that includes a multiple quantum well. A spectral luminescence and an epi thickness at a location on the substrate are obtained. A spectral modulation for the location may be computed given the epi thickness and material indices of refraction. The underlying luminescence spectrum may then be generated by dividing the measured spectral luminescence by the spectral modulation. Subsequently, a peak wavelength and other parameters may be obtained from the underlying luminescence spectrum. In another embodiment, the underlying luminescence spectrum may be determined, without the epi thickness measurement, using a self-consistent technique. Another embodiment relates to an apparatus for spectral luminescence mapping and epitaxial thickness measurement. Other embodiments, aspects and features are also disclosed. | 09-19-2013 |
| 20130265573 | SEGMENTED CHIRPED-PULSE FOURIER TRANSFORM SPECTROSCOPY - An emission can be obtained from a sample in response to excitation using a specified range of excitation frequencies. Such excitation can include generating a specified chirped waveform and a specified downconversion local oscillator (LO) frequency using a digital-to-analog converter (DAC), upconverting the chirped waveform via mixing the chirped waveform with a specified upconversion LO frequency, frequency multiplying the upconverted chirped waveform to provide a chirped excitation signal for exciting the sample, receiving an emission from sample, the emission elicited at least in part by the chirped excitation signal, and downconverting the received emission via mixing the received emission with a signal based on the specified downconversion LO signal to provide a downconverted emission signal within the bandwidth of an analog-to-digital converter (ADC). The specified chirped waveform can include a first chirped waveform during a first duration, and a second chirped waveform during a second duration. | 10-10-2013 |
| 20140185043 | METHODS AND SYSTEMS FOR ANALYZING SAMPLES - This disclosure relates to a method for analyzing a sample of material. The method includes (a) converting a portion of the sample into a plasma multiple times; (b) recording a spectrum of electromagnetic radiation emitted in response to each of the sample conversions to define a sequence of spectra for the sample, in which each member of the sequence corresponds to the spectrum recorded in response to a different one of the sample conversions; (c) using an electronic processor to compare the sequence of spectra for the sample to a sequence of spectra for each of at least one reference sample in a reference library; and (d) using the electronic processor to determine information about the sample based on the comparison to the reference samples in the library. | 07-03-2014 |
| 20140218728 | METHOD AND APPARATUS FOR DETECTING CADMIUM WITH OPTICAL EMISSION SPECTROSCOPY - An apparatus and method for detecting cadmium using optical emission spectroscopy is provided. The apparatus contains a system which uses optical emission spectroscopy which is programmed and calibrated to detect the presence of cadmium in PPM. The system is calibrated using test samples which have been prepared with a lead/cadmium matrix material having at least one iron based electrode integrated therein. | 08-07-2014 |
| 20150015880 | PLASMA SPECTROMETER - To improve the detection sensitivity, detection accuracy, and reproducibility when electrostatic discharge is generated in a sample solution and analysis is performed using light emission in the generated plasma. A flow channel | 01-15-2015 |
| 20150293014 | ATOMIC ABSORPTION SPECTROPHOTOMETER AND SIGNAL VOLTAGE OPTIMIZATION METHOD USED BY THE SAME - There are provided an atomic absorption spectrophotometer capable of effectively preventing saturation of a signal voltage of a detector at the time of measurement, and a signal voltage optimization method used by the same. Test measurement of a sample is performed in a state where a preset value is taken as a set value of the signal voltage of the detector. The set value of the signal voltage of the detector corresponding to the sample is optimized based on the signal voltage of the detector at the time of the test measurement of the sample. In this manner, by optimizing the set value of the signal voltage of the detector corresponding to the sample through test measurement using the actual sample, saturation of the signal voltage of the detector at the time of measurement may be effectively prevented. | 10-15-2015 |
