Through-container optical evaluation system

An apparatus, and method of its use, to determine a characteristic of a fluid sample contained inside a closed container. The ratio of intensity for detected radiation (e.g., light), subsequent to its transmission through the container's walls and fluid in the container, at each of a reference wavelength and a measurement wavelength is compared to a predetermined value to make a determination of the fluid's characteristic. Desirably, the wavelengths are applied to the same location on the container to minimize a source of signal error. The reference wavelength is selected for its substantial lack of attenuation when transmitted through a known fluid composition. The measurement wavelength is selected for its predictive interaction (e.g., absorption) with the fluid.

The invention relates generally to determination of characteristics of a fluid contained in a vessel. In particular, the invention provides a photometric system operable to determine certain characteristics of a fluid sample by comparing one or more predetermined numeric values against a ratio of the intensity of light, or other radiation, measured at two characteristic wavelengths, wherein the intensities are measured subsequent to passing the radiation through walls of the container (and typically also through the fluid sample).

Attached files:


Patents:
US 20,080,297,769

Inventor(s): BAMBERG EBERHARD [US]; CORBIN BRENDAN J [US]; BAMBERG STACY J MORRIS [US]; HAWKER CHARLES [US]; ROBERTS WILLIAM [US]

Type of Offer: Sale



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