초록 ▼

A gas analyzer is disclosed herein. The gas analyzer includes a light source for transmitting a radiation and a sampling chamber having a first opening for receiving a gas sample, a second opening for removing the gas sample, at least one optical window towards the radiation allowing the radiation t

A gas analyzer is disclosed herein. The gas analyzer includes a light source for transmitting a radiation and a sampling chamber having a first opening for receiving a gas sample, a second opening for removing the gas sample, at least one optical window towards the radiation allowing the radiation to traverse the gas sample and also having a first wall and a second wall opposite to the first wall, the first wall and second wall edging the sampling chamber to guide the gas sample from the first opening to the second opening. The gas analyzer also includes at least one detector for receiving the radiation after traversing the gas sample. The first wall and the second wall of the sampling chamber is curved and at a predetermined distance from each other, an overall shape of the second wall being mostly similar to the first wall.

대표청구항 ▼

1. A gas analyzer comprising: a light source for transmitting at least one of an infrared radiation and a visible radiation and adapted to form a ring like radiation pattern with most intensity in a ring area and with less intensity in a middle of said ring;a sampling chamber having a first opening

1. A gas analyzer comprising: a light source for transmitting at least one of an infrared radiation and a visible radiation and adapted to form a ring like radiation pattern with most intensity in a ring area and with less intensity in a middle of said ring;a sampling chamber having a first opening for receiving a gas sample and having a second opening for removing said gas sample and at least one optical window towards the radiation allowing the radiation to traverse said gas sample and also having a first wall and a second wall opposite to said first wall, said first wall and second wall edging said sampling chamber to guide said gas sample from said first opening to said second opening; andat least one detector for receiving the radiation after traversing said gas sample;wherein said first wall and said second wall of said sampling chamber is curved and at a predetermined distance from each other, an overall shape of said second wall being mostly similar to said first wall. 2. The gas analyzer according to claim 1, wherein the distance between said first wall and said second wall is substantially equal varying less than 40%, preferably less than 25%. 3. The gas analyzer according to claim 1, wherein said sampling chamber being, shaped into a curved cavity having a predetermined length between said curved first wall and said curved second wall, a main part of said length having a substantially equal cross-sectional area. 4. The gas analyzer according to claim 3, wherein said cross-sectional area is four-cornered. 5. The gas analyzer according to claim 1, wherein in addition to said at least one optical window there is another optical window, which optical windows are planar and at a predetermined distance from each other, allowing the radiation traverse both said optical windows and the gas sample therebetween. 6. The gas analyzer according to claim 5, wherein said both optical windows, said first curved wall and said second curved wall are adapted to surround said sampling chamber having a predetermined length, a main part of said length having a substantially equal cross-sectional area. 7. The gas analyzer according to claim 1, wherein besides said first wall and said second wall also said at least one optical window is edging said sampling chamber, said optical window being planar towards the radiation, but crosswise with said radiation, similarly curved as said first wall and said second wall. 8. The gas analyzer according to claim 1, wherein said light source comprising an emitter element for emitting the radiation and a cylindrically shaped parabolic reflector for collecting and collimating the radiation. 9. The gas analyzer according to claim 1, wherein said first wall and said second wall is curved matching with said ring like radiation pattern of said light source, when said at least one optical window between said first wall and said second wall is adapted to follow curves of said first wall and said second wall. 10. The gas analyzer according to claim 9, wherein said at least one detector comprising various detector channels, each detector channel detecting some specific agent of the gas sample, said detector channels being arranged one after the other matching with said at least one optical window of said sampling chamber. 11. The gas analyzer according to claim 1, wherein said at least one detector comprising various detector channels, each detector channel adapted to detect some specific agent of the gas sample, said detector channels being matched with said ring like radiation pattern of said light source. 12. The gas analyzer according to claim 1, wherein a contact angle of said first opening and said second opening is at least 180 degrees. 13. The gas analyzer according to claim 12, wherein between said first opening and said second opening, said second wall is adapted to form an extension guiding the gas sample around said extension of said second wall from said first opening towards said second opening. 14. The gas analyzer according to claim 13, wherein said extension of said second wall between said first opening and the second opening is adapted to extend towards said first wall at least as much as a diameter of said first opening. 15. A gas analyzer comprising: a light source for transmitting a radiation towards at least one direction;a sampling chamber having a first opening adapted to receive a gas sample and having a second opening adapted to remove said gas sample and at least one optical window towards said at least one direction of the radiation adapted to allow the radiation to traverse said gas sample and also having a first wall and a second wall opposite to said first wall, said first wall and second wall adapted to edge said sampling chamber to guide said gas sample from said first opening to said second opening; andat least one detector adapted to receive said radiation after traversing said gas sample;wherein said first wall and said second wall of said sampling chamber is curved and at a predetermined distance from each other, an overall shape of said second wall being mostly similar to said first wall and wherein said light source for transmitting at least one of an infrared radiation and a visible radiation is adapted to form a ring like radiation pattern with most intensity in a ring area and with less intensity in a middle of said ring. 16. The gas analyzer according to claim 15, wherein said sampling chamber is semicircular or circular or almost circular. 17. The gas analyzer according to claim 15, wherein said first wall and said second wall is curved matching with said ring like radiation pattern of said light source, when said at least one optical window between said first wall and said second wall is adapted to follow curves of said first wall and said second wall. 18. The gas analyzer according to claim 15, wherein said at least one detector comprising various detector channels, each detector channel adapted to detect some specific agent of the gas sample, said detector channels being matched with said ring like radiation pattern of said light source.