초록 ▼

A detector for rapid response, quantitative determination of carbon dioxide in a gas comprising one or more components, each of which comprises a carrier with a surface to be exposed to the gas, said surface including ane indicating element of a predetermined sensitivity which gives a rapid response

A detector for rapid response, quantitative determination of carbon dioxide in a gas comprising one or more components, each of which comprises a carrier with a surface to be exposed to the gas, said surface including ane indicating element of a predetermined sensitivity which gives a rapid response signal when exposed to a given concentration of carbon dioxide, the response signals produced when the component or components are exposed to the gas providing a rapid and progresssive quantitative determination of the concentration of carbon dioxide or any change with time of said concentration in the gas.

대표청구항 ▼

A detector for the quantitative determination of the concentration of carbon dioxide contained in a gas sample, the detector comprising a plurality of indicator elements supported by at least one support component, each of said indicator elements producing a distinguishable signal within a rapid res

A detector for the quantitative determination of the concentration of carbon dioxide contained in a gas sample, the detector comprising a plurality of indicator elements supported by at least one support component, each of said indicator elements producing a distinguishable signal within a rapid response time, each such signal corresponding to a predetermined different concentration of carbon dioxide in the gas sample, said indicator elements being arranged in a sequence wherein each signal of each of said indicator elements corresponds in turn to a progressively different concentration of carbon dioxide from that to which the signal of each preceding indicator element corresponds, said sequence of components thereby providing a progressive quantitative determination of carbon dioxide in the gas sample. A method for the quantitative determination of the concentration of carbon dioxide in a gas which comprises bringing said gas into contact with a surface of at least one component in a detector said at least one component having a carrier defining said surface to be exposed to said gas, said surface being impregnated with a plurality of chromogenic indicating elements of a predetermined sensitivity which produce a series of rapid visual color changes corresponding to varying concentrations of carbon dioxide, said indicating elements being arranged on said surface in a sequence wherein said predetermined sensitivity of each of said indicating elements in the sequence differs progressively by an increment which gives a color change different from that of each preceding indicating element, and comparing said series of rapid visual color changes or said different color changes with the colors in a precalibrated color comparison chart, thereby obtaining a progressive quantitative determination of the concentration or change in concentration of carbon dioxide in the gas.