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Using Sample Absorption For Chemical Composition Analysis

Using Sample Absorption For Chemical Composition Analysis patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

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Radiant Energy


Invisible Radiant Energy Responsive Electric Signalling > Infrared Responsive > With Selection Of Plural Discrete Wavelengths Or Bands > With Radiation Source > Using Sample Absorption For Chemical Composition Analysis



Method and apparatus to use multiple spectroscopic envelopes to determine components with greater accuracy and dynamic range
02/13/14 - 20140042323 - A method of using spectroscopic envelopes for determining components in a sample may include selecting spectroscopic envelopes and passing input light through a sample comprising at least one absorbing component is provided. The method includes measuring throughput light with a photo-detector and determining the concentration of the at least one...

Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes
01/16/14 - 20140014841 - A system for measuring the absorption spectrum of a sample is provided that includes a broadband light source that produces broadband light defined within a range of an absorptance spectrum. An interferometer modulates the intensity of the broadband light source for a range of modulation frequencies. A bi-layer cantilever probe...

Determination of a lipid water ratio
01/31/13 - 20130026367 - The present invention relates to an apparatus, a method and a computer program for determining a lipid-water ratio and a scattering parameter of a sample. In particular, the invention relates to an apparatus comprising a light source and a detector arranged to measure an optical parameter at various wavelengths, where...

A method and device for identifying a material
08/30/12 - 20120217403 - A material may be identified using THz radiation that simultaneously or sequentially includes at least one first frequency portion and a second frequency portion different therefrom. An object formed from the material to be identified is irradiated with the THz radiation and the THz radiation exiting the object is detected...

Detection and identification of solid matter
01/26/12 - 20120018638 - Detection and identification of minute quantities of condensed or solid state materials with significantly improved performance over the present state-of-the-art, comprises illuminating a small target particle with an appropriate laser radiation at a wavelength that is strongly absorbed by the target. The resulting temperature rise is observed by monitoring the...

Method for predicting hydrocarbon process stream stability using near infrared spectra
04/22/10 - 20100096552 - A method of predicting the stability of a hydrocarbon process stream is disclosed and claimed. The method includes obtaining samples from one or more process streams and measuring the actual stability and the near infrared spectral absorbance of those samples. A classification model is initially developed to identify sample subsets...

High-volume on-line spectroscopic composition testing of manufactured pharmaceutical dosage units
12/03/09 - 20090294673 - Disclosed are pharmaceutical dosage unit manufacturing process control apparatus and methods. These can include acquiring a plurality of multi-pixel images of a flow of pharmaceutical dosage units at different wavelengths along an axis that is perpendicular to a direction of the flow of pharmaceutical dosage units, processing the images acquired...

Sensing apparatus having an optical assembly that collimates emitted light for detection
08/06/09 - 20090194699 - An apparatus for optical sensing of samples includes an optical source, an optical assembly, a sample holder, an objective lens, and a detector. The objective lens collimates light emitted by the sample. Preferably, the optical assembly rotates about an axis, allowing the sensing apparatus to sense results from plural locations...

Device for analysing composition of contents of a container
06/11/09 - 20090146061 - characterised in that it further comprises spectral analysis means of the contents of the container for measuring the absorption of waves by the container and its contents, and means (50) for providing information relative to the nature of the contents of said container (R) as a function of the complex...

Method of evaluating skin conditions and method of estimating skin thickness
05/28/09 - 20090134331 - Methods of determining at least one of the degree of skin damage caused by UV light and the degree of physiologically aging of the skin, and methods of estimating at least one of an epidermal skin thickness and a dermal skin thickness by analysis of the near infrared absorption spectrum...

Measuring near infra-red spectra using a demountable nir transmission cell
05/14/09 - 20090121138 - A process for measuring the NIR spectrum of a sample using a demountable NIR transmission cell of pathlength 2.5 mm or less, said process comprising: (a) measuring the etalon fringes that arise when NIR light passes through the NIR cell in the absence of a liquid sample, (b) using this...