Method and apparatus for the quantitative determination of beer ingredients
AssigneeDiessel GmbH & Co.
InventorUlrich C. Sanden
Life of this patent
Estimating the term…
Abstract
The ingredients of beer and/or wort, particularly alcohol, extract, wort and carbon dioxide are determined individually by passing infrared light through the beer where a wavelength between 2.9 and 3.1 microns is used for the alcohol ingredient, a wavelength between 9.6 and 9.8 microns is used for the extract or the flavorings, and a wavelength from 4.2 to 4.4 microns is used for the carbon dioxide ingredient, each absorption of infrared being measured and analyzed.
Claims8
A method for quantitatively determining the alcohol, wort, and carbon dioxide ingredients of beer comprising:
- (a) passing said beer through a conduit;
- (b) passing infrared light having a first wavelength between 2.9 and 3.1 microns through said beer in said conduit;
- (c) passing infrared light having a second wavelength between 9.6 and 9.8 microns through said beer in said conduit;
- (d) passing infrared light having a third wavelength between 4.2 and 4.4 microns through said beer in said conduit;
- (e) measuring the absorption of said first wavelength and displaying an alcohol percentage;
- (f) measuring the absorption of said second wavelength and displaying a wort percentage;
- and
- (g) measuring the absorption of said third wavelength and displaying a carbon dioxide percentage.
An apparatus for quantitatively determining the alcohol, wort and carbon dioxide ingredients of beer, comprising:
- (a) a first infrared source generating a beam having a wavelength between 2.9 and 3.1 microns along a first optical axis;
- (b) a second infrared source generating a beam having a wavelength between 9.6 and 9.8 microns along a second optical axis;
- (c) a third infrared source generating a beam havng a wavelength between 4.2 and 4.4 microns along a third optical axis;
- (d) a line passing said beer having a flow axis;
- (e) a first attenuated total reflection cell located along said first optical axis and through said flow axis;
- (f) a second attenuated total reflection cell located along said second optical axis and through said flow axis;
- (g) a third attenuated total refelection cell located along said third optical axis and through said flow axis;
- (h) means for measuring and displaying the absorptivity of said first infrared source to give said alcohol percentage;
- (i) means for measuring and displaying the absorptivity of said second infrared source to give said wort percentage;
- and
- (j) means for measuring and displaying the absorptivity of said third infrared source to give said carbon dioxide percentage.
Dependencies are inferred from the claim text.