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AssigneeInfrasolid GmbH
InventorsMarco Schossig, Volkmar Norkus, Tobias Ott
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A measuring device for sensing different gases and gas concentrations, includes an infrared radiation source, a measurement channel, which has an optical path and a gas interaction path, and radiation detectors arranged along the measurement channel. The optical path has a first band-pass interference filter arranged at a first deflection point and a first radiation detector is arranged after the band-pass interference filter. A method that uses the measuring device, includes: measurement radiation is introduced into the measurement channel containing the gas to be measured, the measurement radiation hits the first band-pass interference filter, wherein only radiation of a wavelength defined by the first band-pass interference filter hits the first radiation detector, radiation reflected at the band-pass interference filter is forwarded along the optical path in the measurement channel to a second radiation detector, and the gas concentrations measured by the radiation detectors are evaluated.
A measuring device for sensing different gases and gas concentrations comprising a radiation source, a measuring channel having an optical path and a gas interaction path, and radiation detectors arranged along the measuring channel, wherein the optical path has at least one deflection point, wherein a first narrow bandpass interference filter is arranged at a first deflection point and a first radiation detector is arranged downstream of the first narrow bandpass interference filter, and wherein the optical path and the gas interaction path in the measuring channel are identical, whereas the optical path has N deflection points and has an absorption path length LN from the radiation source up to the Nth deflection point, wherein N is a natural number greater than 1 and different gases can be measured using different absorption path lengths at the same time.
Dependencies are inferred from the claim text.