Abstract: The present invention embraces a construction unit comprising a light detector and mountable to a carrier, such as a printed circuit card, and where said construction unit is adapted to be includable in a gas sensor-related arrangement. Said construction unit is assigned a plurality of first connection devices, which connection devices are adapted and distributed along a first surface portion of said construction unit for an electric connection facility to second connection devices related to said carrier. Said construction unit is adapted attachable to or placeable in the vicinity of a translucent recess formed in said carrier for the formation of an aperture. An optoelectric sensor is tightly placed against one side surface of said carrier while a first light-generating means is orientable, preferably as an individual unit, at an adapted distance from or along the other and opposite side surface of the carrier.

Abstract: This invention comprises an arrangement adapted for spectral analysis having a transmitting means adapted for electromagnetic radiation, a delimited space, in the form of a cavity, serving as a measuring cell and intended to be capable of defining an optical measuring distance, a sensing means of said electromagnetic radiation passing said optical measuring distance from said transmitting means, and a unit at any rate connected to said sensing means performing the spectral analysis. Said sensing means for the electromagnetic radiation is opto-electrically adapted sensitive to the electromagnetic radiation, which is intended to fall within the spectral range whose chosen wavelength components or spectral elements are to become objects of an analysis in the unit performing the spectral analysis for determining in this unit, over calculations, the relative intensity of radiation of the spectral element. Said electromagnetic radiation is adapted to pass the space in which a sample of gas exists.

Abstract: A gas-sensor related arrangement and more specifically an arrangement which, for its function, utilizes a first light-generating element, a second light-receiving element, and a third element for forming and defining an optical measuring distance between the first and second elements through a gas sample, as well as a control unit, with associated calculating circuits. More specifically, a unit is to be allotted to a plurality of first electric connector devices or elements. The connector devices are adapted and distributed along a first surface portion of the unit for an electric connecting possibility to other electric connector devices or elements related to a carrier, such as a printed circuit card or board, for the unit. The first and second elements are to be closely related to each other within a discrete unit as a first and a second surface section. The discrete unit is shaped and dimensioned so as to exhibit a small thermal mass.

Abstract: An arrangement adapted for a spectral analysis, having a light transmitting means, a delimited space in the form of a cavity serving as a measuring cell and defining an optical measuring distance, a light sensing means for detecting radiation passing said optical measuring distance from said light transmitting means, and a unit, connected at least to said light sensing means and performing the spectral analysis. Beams of radiation from the light transmitting means are made to pass through an optical band-pass filter at different angles of incidence. The filter is structured so as to pass a wavelength in dependence of the angle of incidence. A first chosen wavelength component is separated from a second wavelength component, each being received in its opto-electric means. Said unit is adapted for detecting and calculating an occurring radiation intensity for each such wavelength component.

Abstract: The present invention relates to a gas cell which is included in a gas sensor and adapted to establish the presence of a gas and/or for determining the concentration of one such gas (G), comprising a cavity (2?) which is delimited by wall portions that have light reflecting properties and which is intended to enclose a volume ((G)) of said gas, and further comprising a light source (3) which is adapted to emit a light bundle (3a?) directed for reflection between cavity-associated and opposing wall portions, wherein a light bundle (3a?) is comprised of light rays which are reflected in a concave wall mirror surface (2b?) and adapted to be directed onto one or more light receivers (4, 5) which function to detect an absorption wavelength corresponding to the gas sample ((G)).

Abstract: The present invention comprises a processed thin film substrate (10) and a method therefore, in order to produce a flexible printed circuit card, having a plurality of microvias going or passing through the thin film substrate and electrically connected along faced-away surfaces, in order to form an electric circuit. A first a number of real nano-tracks are filled with a first material (M1), having good electric properties, for the formation of a first number of, here denominated, first vias (V10, V30, V 50), that a second number of real nano-tracks are filled with a second material (M2), having good electric properties, for the formation of a second number of, here denominated, second vias (V20, V40, V60). The first material (M1) and the second material (M2) of said first and second vias (V10–V60) are chosen having mutually different thermoelectric properties.

Abstract: The invention relates to a gas cell (1) adapted for carbon dioxide and including a cavity (10) which is adapted for a chosen gas volume, a light s source (11) and a light-bundle receiving unit (12). The light source (11) is placed in a focal point (F) associated with a partially elliptical mirror surface (13) forming a reflector for the light source (11) and a first defining surface of the cavity (10). Two other cavity-defining surfaces are comprised of gas-conducting surfaces (14a, 14b) orientated from the end-parts (13a?, 13b?) of the mirror surfaces (13a, 13b). The light-bundle receiving unit (12) is placed in a second focal point (F?) associated with the partially elliptical mirror surfaces (13a, 13b).

Abstract: The invention relates to a gas cell (2?) that includes a cavity (20) for a chosen gas volume, a light source (30), and one or more light bundle receiving units or detectors (21, 22, 23, 24, 25). The cavity (20) is formed by and delimited by, inter alia, a first partially elliptical mirror surface (20a) and two partially elliptical mirror surfaces, a second (20b) and a third (20c), which are opposed to said first mirror surface (20a) and which are so orientated in relation to each other that a light bundle (130a, 130b) will be reflected by said mirror surfaces (20a, 20b, 20c) so as to form an optical measurement path extremity, and terminate in a light-receiving unit (21, 22, 23, 24, 25) allocated to a chosen measurement path extremity. The light source (30) is disposed in one end region of said cavity (20) and a reflector (30a, 30b) which functions to cause emitted light bundles to converge towards a focusing point (F) is also disposed in said one end region.