Sick Ag

Ksb Aktiengesellschaft

Jürgen Kaufmann

Michael Overdick

Bernhard Brecht

Thomas Beyer

Ingo Schiffler

Uwe Bruhns

Julian Edler

Harald Hartmann

Ralf Graber

Florian Brüchig

Frank Nuber

Rolf Schiffler

An apparatus for optical in-situ gas analysis includes: a housing; a measuring lance a first end connected to the housing and a second end projecting into the gas to be measured; a light transmitter that is arranged in the housing and whose light is conducted into the measuring lance and is reflected by a reflector arranged at the second end onto a light receiver, and the optical path defines an optical measurement path within the measuring lance; and, an evaluation device for evaluating received light signals of the light receiver. In order to be able to reduce the consumption of test gas, the measuring lance has an outer tube, with the outer tube having openings for the gas to be measured. The openings can be closed by at least one seal for the test phase, with the seal searingly closing the openings by the enlargement of its volume.

Apparatus for optical in-situ gas analysis

A spectrometer has a first and second light sources () which generate light radiation () in a first and second wavelength ranges, and a mirror unit () for deflecting the light radiation () into a measurement path (), arranged so that the radiation of both wavelength ranges () runs through on the same optical path. A detector () detects radiation () running through the measurement path () and an evaluation unit () evaluates the radiation () incident at the detector () and for determining a concentration of a measurement gas component present in the measurement path (). The mirror unit () is configured as a micromirror array () and that a single micromirror () only deflects a portion of the radiation ().

Spectrometer and method of operating same

The invention relates to an improved optoelectronic apparatus for optical gas analysis by means of which the interfering influence of the particles contained in the gas is reduced with regard to the intended measurement. For this purpose the optoelectronic apparatus in accordance with the invention has a light transmitter and a light receiver which define an optical measurement path including a measurement volume between one another. The received signals of the light receiver can be evaluated in an evaluation unit, to ultimately obtain the desired information therefrom, for example, the concentration of a specific gas content. In accordance with the invention an ionizer is further provided which is arranged upstream of the optical measurement path. The ionizer causes an ionization of the undesirable particles, i.e. e.g. the dust particles, smoke particles or such like aerosols so that the ionized particles can be deflected by electric fields or also magnetic fields by means of an ion acceleration apparatus. In this respect the ion acceleration apparatus and/or its electromagnetic fields is/are aligned such that the generated ions experience a deflection to be able to flow past the measurement volume.

Optoelectronic apparatus for gas analysis and method

A gas permeable probe for use in an optical analyzer for an exhaust gas stream flowing through a duct or chimney has:

Gas permeable probe for use in an optical analyzer for an exhaust gas stream flowing through a duct or chimney

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Waldkirch, Germany

Jürgen Kaufmann