Method and device for optical pressure measurement of a gas in a closed container
AssigneeHeuft Systemtechnik GmbH
InventorsBernd Baumann, Marcus Wolff
Life of this patent
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Abstract
Method for optical pressure measurement of a gas in a closed container by directing a radiation of a radiator through the container and measuring the transmitted radiation by a detector, wherein the radiation of the radiator covers at least one first wavelength range in which there is an absorption of the radiation by the gas, the intensity of the transmitted radiation is detected in a second wavelength range by the detector, wherein the second wavelength range overlaps at least partially with the first wavelength range, and an accumulated intensity of the detected radiation in the second wavelength range is assigned to a pressure of the gas.
Claims23
Method for optical pressure measurement of a gas in a closed container by directing a radiation of a radiator through the container and measuring the transmitted radiation by a detector, wherein:
- the radiation of the radiator covers at least one first wavelength range in which there is an absorption of the radiation by the gas,
- the intensity of the transmitted radiation is detected in a second wavelength range by the detector, wherein the second wavelength range overlaps at least partially with the first wavelength range, and
- an accumulated intensity of the detected radiation in the second wavelength range is assigned to a pressure of the gas.
Device for the optical pressure measurement of a gas in a closed container, said device including:
- a radiator, which generates a radiation in a first wavelength range, wherein there is an absorption of the radiation by the gas in the first wavelength range,
- a detector, which detects the intensity of the radiation transmitted through the container and the gas in a second wavelength range, wherein the second wavelength range overlaps at least partially with the first wavelength range, and
- with an analyzing unit, which assigns a pressure value to an intensity accumulated in the second wavelength range.
Dependencies are inferred from the claim text.