Abstract: A temperature controller (1) for a temperature control mechanism (M) arranged for heating of a device (2) is described. The temperature controller (1), includes an input (3) for a temperature signal (Y), an output (4) for a control signal U for controlling the temperature controller, and a first control loop mechanism (CLM1) can output a first predicted temperature ({tilde over (X)}) of the gas surrounding the device. The temperature controller also includes a first model ({tilde over (S)}) of the thermal properties of the device, a second model ({tilde over (M)}) of the thermal properties of the device, and a second control loop mechanism (CLM2) can output the control signal (U).

Abstract: A method and a device for determining a concentration of a component in a fluid is described. The method comprises the steps of providing from a first optical sensor (1) a first light intensity (IR1A) for light which has interacted with the fluid at a first point in time (A), and a second light intensity (IR1B) for light which has interacted with the fluid at a second point in time (B), wherein the first light intensity (IR1A) is different from the second light intensity (IR1B), and providing from a second optical sensor (2) a third light intensity (IR2A) for light which has interacted with the fluid at the first point in time (A), and a fourth light intensity (IR2B) for light which has interacted with the fluid at the second point in time (B).

Abstract: A gas sensor (1) is described comprising a light source (2), and a detector (4), a first reflector (7), which is concave and arranged to reflect and concentrate light emitted from the light source (2) to a first light spot (31), and an interference filter (5). The gas sensor comprises a second reflector (8), a third reflector (9), which is concave, and a reflector base (37) with a dome shaped surface (17) with the first and third reflectors facing the light source (2) and the detector (4). During operation of the gas sensor (1), the detector (4) is illuminated by light from the light source (2), which in an optical path from the light source (2) has been reflected at least once in each one of the first reflector (7), the second reflector (8), and the third reflector (9). The gas sensor (1) is configured for detection of a first wavelength portion of the light.

Abstract: The present invention relates to a breath analyzing system and method. In particular the invention relates to a breath analyzing system and method arranged to provide tracer-aided classification of the presence of a breath intoxicating substance above a limit concentration and providing status to a user about the progression of the classification. The method/system detects a peak in the tracer signal and defines an evaluation period corresponding to the duration of the peak. Measurements classification of the concentration of the intoxicating substance is used for the evaluation period, and if required to achieve a result, for a plurality of evaluation periods.

Abstract: A multi-channel gas sensor comprising a gas cell (101, 601), a light source (110, 210, 310, 410, 510, 610), a first interference filter (150, 250, 350, 450, 550, 650), a first detection unit (120, 220, 320, 420, 520, 620) and a second detection unit (130, 230, 330, 430, 530, 630). The light source (110, 210, 310, 410, 510, 610) is arranged to emit light radiation into the gas cell (101, 5 601). The first detection unit (120, 220, 320, 420, 520, 620) is arranged to detect light from the light source, that has propagated through at least a part of the gas cell (101, 601), and that has been transmitted through the first interference filter (150, 250, 350, 450, 550, 650).

Abstract: The present invention relates to a breath analyzing apparatus and method. In particular the invention relates to a breath analyzing apparatus operating in the 3.3-3.6 ?m wavelength range and arranged to provide absorption information in at least two different wavelength bands in the wavelength range. The absorption information from the wavelength bands are compared with tabulated data of preselected substances to identify an unidentified substance.

Abstract: The present invention relates to a breath analyzing system and method. In particular the invention relates to a breath analyzing system combined with a heat, ventilation and air conditioning system (HVAC-system) of the vehicle, wherein the settings of the HVAC system are controlled to optimize the performance of the breath analyzing system. In particular the HVAC system may be set to a closed position facilitating a concentration build up of breath gases in the compartment. Alternatively the HVAC system may shift between open and closed positions.

Abstract: A multi-channel gas sensor comprising a gas cell (101, 601), a light source (110, 210, 310, 410, 510, 610), a first interference filter (150, 250, 350, 450, 550, 650), a first detection unit (120, 220, 320, 420, 520, 620) and a second detection unit (130, 230, 330, 430, 530, 630). The light source (110, 210, 310, 410, 510, 610) is arranged to emit light radiation into the gas cell (101, 5 601). The first detection unit (120, 220, 320, 420, 520, 620) is arranged to detect light from the light source, that has propagated through at least a part of the gas cell (101, 601), and that has been transmitted through the first interference filter (150, 250, 350, 450, 550, 650).

Abstract: The invention relates to a distributed system (1; 11; 21) for access control and sobriety testing comprising an authorization control and sobriety testing station (2; 12; 22; 32), which obtains authorization data and a bodily signature sample from an individual seeking access, a central control unit (3; 13; 23; 33), which, if there is a positive verification of the authorization data and no detection of alcohol in the bodily signature sample, issues temporary authorization information, and at least one access control unit (4; 14; 24), which obtains the temporary authorization information and, upon a positive verification of the temporary authorization information, grants access to the individual who is seeking such access.

Abstract: The invention relates to a distributed system (1; 11; 21) for access control and sobriety testing comprising an authorization control and sobriety testing station (2; 12; 22; 32), which obtains authorization data and a bodily signature sample from an individual seeking access, a central control unit (3; 13; 23; 33), which, if there is a positive verification of the authorization data and no detection of alcohol in the bodily signature sample, issues temporary authorization information, and at least one access control unit (4; 14; 24), which obtains the temporary authorization information and, upon a positive verification of the temporary authorization information, grants access to the individual who is seeking such access.

Abstract: A sensor device comprising a planar substrate defining a substrate plane and a waveguide for guiding an electromagnetic wave. The waveguide extends in a length direction in a waveguide plane parallel to the substrate plane and has a width and a height wherein the width to height ratio is more than 5. The height of the waveguide is less than the wavelength of the electromagnetic wave. The waveguide is supported on the substrate by a support structure extending from the substrate to the waveguide, along the length direction of the waveguide, having a width which is smaller than the width of the waveguide. The invention further relates to a method of detecting a component in gas and a method of fabricating a sensor device.

Abstract: A sensor device comprising a planar substrate defining a substrate plane and a waveguide for guiding an electromagnetic wave. The waveguide extends in a length direction in a waveguide plane parallel to the substrate plane and has a width and a height, wherein the width to height ratio is more than 5. The height of the waveguide is less than the wavelength of the electromagnetic wave. The waveguide is supported on the substrate by a support structure extending from the substrate to the waveguide, along the length direction of the waveguide, having a width which is smaller than the width of the waveguide. The invention further relates to a method of detecting a component in gas and a method of fabricating a sensor device.

Abstract: The present invention relates to a gas cell (1) for optical measurements of gas content and/or concentration comprising a cavity (1a), at least one aperture (11) for gas exchange, at least one first socket (12) for light emitting means (2) and at least one second socket (13) for light detecting means (3). The length of an optical measuring path (A) through the cavity (1a) is defined by a direct or indirect distance between a light emitting means (2) in the first socket (12) and a light detecting means (3) in the second socket (13). The present invention teaches that an epoxy mold compound is used to form at least the parts of the gas cell (1) that define the optical measuring path (A).

Abstract: The present invention relates to a method to attach a shape memory alloy wire to a substrate, where the wire is mechanically attached into a 3D structure on the substrate. The present invention also relates to a device comprising a shape memory alloy wire attached to a substrate, where the wire is mechanically attached into a 3D structure on the substrate.

Abstract: A device 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 the electromagnetic radiation passing the optical measuring distance from said transmitting means, and a unit at any rate connected to the sensing means performing the spectral analysis, the 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.

Abstract: A measuring cell adapted for a spectral analysis of a gas sample, where this measuring cell is designed and adapted to co-ordinate, from an IR generating element, emitted converging and/or diverging light beams in a direction toward an IR receiving element, by a plurality of reflections of emitted light beams from a number of reflection surfaces assigned to the inner cavity of the measuring cell, thereby creating a predetermined measuring distance in the inner cavity of the measuring cell, from the IR generating element to the IR receiving element. The cavity of the measuring cell is adapted to contain the gas sample intended for a spectroanalytical absorption measurement.

Abstract: The present invention relates to a method to attach a shape memory alloy wire to a substrate, where the wire is mechanically attached into a 3D structure on the substrate. The present invention also relates to a device comprising a shape memory alloy wire attached to a substrate, where the wire is mechanically attached into a 3D structure on the substrate.

Abstract: The present invention comprises a gas analysis arrangement (1), comprising a chamber (20) containing a sample of gas (“G”), light-emitting means (3), means (4) for receiving light that has been reflected through the chamber, and an electronic circuit (5) for calculation, adapted such that it is able by means of spectral analysis to analyze and determine the presence of a selected gas or mixture of gases present as a sample (“G”) of gas within the said chamber (20). The said chamber (20) offers one or several apertures for the passage of the sample of gas into and out of the said chamber. The said chamber (20) is assigned a somewhat curved shape, with at least one concave curved light-reflecting surface (30b) extending between the said light-emitting means (3) and the said light-receiving means (4).

Abstract: The present invention relates to a gas detecting arrangement having a gas cell which includes a cavity, a gas-cell-related light source, a gas-cell-related light detector and a controlling and computing unit wherein the unit is adapted fro initiating activation of the light source and also to evaluate the presence and/or the concentration or a gas and/or a gas mixture enclosed in the cell cavity in response to light-detector-related signals received from the light detector.

Abstract: A measuring cell adapted for a spectral analysis of a gas sample, where this measuring cell is designed and adapted to co-ordinate, from an IR generating element, emitted converging and/or diverging light beams in a direction toward an IR receiving element, by a plurality of reflections of emitted light beams from a number of reflection surfaces assigned to the inner cavity of the measuring cell, thereby creating a predetermined measuring distance in the inner cavity of the measuring cell, from the IR generating element to the IR receiving element. The cavity of the measuring cell is adapted to contain the gas sample intended for a spectroanalytical absorption measurement.