Patent application number | Description | Published |
20130057859 | METHOD AND DEVICE FOR DETERMINING THE QUALITY OF MEASUREMENT RESULTS OF A SCATTERED LIGHT METER - A method for determining the quality of the measuring results of a scattered light meter for measuring the particle concentration in motor vehicle exhaust gases, which has at least one scattered light measuring chamber, at least one light source and at least one light sensor, includes the steps: determining the difference between two scattered light sensor signals, that were picked up in a reference state of the scattered light meter; determining the difference between two scattered light sensor signals, which were picked up in a used state of the scattered light meter; and comparing the difference of the signals picked up in the used state to the reference signal difference of the signals picked up in the reference state. | 03-07-2013 |
20130057860 | DEVICE AND METHOD FOR CALIBRATING A SCATTERED LIGHT METER - A calibration apparatus for calibrating a scattered-light measuring device that is embodied to measure a particle concentration in motor vehicle exhaust gases, comprises at least one scattering body that has a number of scattering centers having a defined size and a defined mutual spacing. The scattering centers are disposed in such a way that the scattering body, upon irradiation with light from a light source, delivers scattered light having an intensity and a distribution predetermined by the scattering body. | 03-07-2013 |
20130182252 | SCATTERED LIGHT MEASURING METHOD - A scattered light method for measuring particle-dependent parameters of gases, in particular particle-dependent parameters of internal combustion engine exhaust gases or other colloids, includes introducing a particle-containing gas into a measuring chamber; emitting a light beam into the measuring chamber; receiving light scattered by the particles using at least two scattered light sensors, the scattered light sensors generating scattered light sensor signals, each being a function of the light received by the respective scattered light sensor; determining an average particle size from the scattered light sensor signals from at least two scattered light sensors and determining at least one further particle parameter from the previously determined average particle size and the scattered light sensor signals. | 07-18-2013 |
20130335739 | measuring device for measuring particulate matter concentrations using scattered light and method for monitoring the measuring device - A measuring unit for measuring a particulate concentration in exhaust gases using scattered light includes a measuring chamber, at least one light source and at least one light sensor, the measuring chamber being situated in the optical path of the light source; and the light sensor records the light scattered by the particulates in the measuring chamber. To detect the intensity of light beam that is relevant for a precise particulate measurement, a monitoring device is provided to detect the intensity of the light beam with the aid of a scattered radiation. The intensity of the light beam is recorded using a monitoring measurement, by ascertaining a scattered radiation and comparing it to a specified reference value for the scattered radiation. With the aid of the comparison, the intensity of the light source is regulated correspondingly and/or the measuring result of the particulate measurement is correspondingly corrected. | 12-19-2013 |
20140230523 | DEVICE AND METHOD FOR MEASURING THE PARTICLE CONCENTRATION IN AN AEROSOL - A device for measuring the particle concentration in an aerosol using a flow tube includes a cavity in which there is a sleeve, the cavity branching off from the flow tube. The sleeve includes, at its end facing away from the flow tube, a collar. The collar encircles the periphery of the sleeve and is fastened at the periphery of the cavity. There is one or more inflow openings in the collar. At least one outflow opening is in an end of the sleeve, which end extends into the flow tube. A measuring chamber is also included in the cavity on the side of the sleeve facing away from the flow tube. | 08-21-2014 |
20150077749 | DEVICE FOR CALIBRATING A SCATTEROMETER - A calibration device is described for calibrating a scatterometer, which is designed in particular for measuring a particle concentration in exhaust gases of motor vehicles. The calibration device has at least one scattering body which emits scattered light having a defined intensity and distribution when irradiated with a light beam, the scattering body having an emission surface for the scattered light, to which is assigned at least one light sensor for detecting the scattered light exiting the emission surface. A screening body having at least one screen opening through which the scattered light exits in the direction of the at least one light sensor is assigned to the emission surface of the scattering body. | 03-19-2015 |
Patent application number | Description | Published |
20080262604 | VESSEL IMPLANT FOR THE TREATMENT OF AN ANEURYSM - The invention relates to a vessel implant for the treatment of an aneurysm, i.e. a dilatation of the cross-sectional area of a blood vessel, comprising an elongate body which has an inlet opening, an outlet opening and a passage connecting the inlet opening to the outlet opening for blood flowing through the blood vessel, with the passage being bounded in the peripheral direction by a blood-impermeable wall, and with the inlet opening having a larger cross-sectional area than the outlet opening. | 10-23-2008 |
20100312262 | Device And Method For Reducing Or Removing Stenoses - A device for reducing or removing stenosis present in a blood vessel by means of a working catheter (7) is described. The working catheter comprises a lumen (8) forming a first working channel (9), extending from the distal end (11) to the proximal end of the working catheter for inserting an instrument (38) to reduce or remove the stenosis. Furthermore, a balloon catheter (16) is provided, which is configured separately from the working catheter, the balloon catheter comprising a sealing balloon (22) in the region of the distal end (21) thereof. The balloon catheter comprises two lumen (18, 20) that are configured separately from each other, of which one is connected to the sealing balloon for the dilation of the same, while the other one forms a second working channel (19) extending from the distal end to the proximal end of the balloon catheter. The sealing balloon is configured for the lateral encompassing of the distal end region of the working catheter such that if a working catheter and a balloon catheter are inserted into the blood vessel next to each other a seal is formed between the outsides of the working catheter and of the balloon catheter and the inside wall of the blood vessel by means of the dilated sealing balloon. | 12-09-2010 |
20130310922 | VESSEL IMPLANT FOR THE TREATMENT OF AN ANEURYSM - A vessel implant for the treatment of an aneurysm, i.e. a dilatation of the cross-sectional area of a blood vessel, may include an elongate body having an inlet opening, an outlet opening, and a passage connecting the inlet opening to the outlet opening for the blood flowing through the blood vessel. The passage may be bounded in the peripheral direction by a blood-impermeable wall and the inlet opening may have a larger cross-sectional area than the outlet opening. The body may be provided with blood-permeable fixing means for the end of the body at the outlet opening side. The fixing means may be designed for contact with the vessel wall of the blood vessel. The fixing means may be designed to hold the body spaced apart from the vessel wall of the blood vessel in the region of the outlet opening. | 11-21-2013 |
Patent application number | Description | Published |
20130035027 | MIXER ASSEMBLY FOR AN AIRCRAFT AIR CONDITIONING SYSTEM - A mixer for an aircraft air conditioning system has first and second fresh air lines and first and second recirculation air lines. A first premixer is connected to the first fresh air line and the first recirculation air line, to mix the fresh air with the recirculation air thereof. A second premixer is connected to the second fresh air line and the second recirculation air line, to mix the fresh air with the recirculation air thereof. A main mixer is connected by a first premixed air line to the first premixer and by a second premixed air line to the second premixer. The main mixer is adapted to be supplied through the first premixed air line and the second premixed air line exclusively with premixed air from the first and/or the second premixer. | 02-07-2013 |
20130130607 | MIXING DEVICE FOR AN AIRCRAFT AIR CONDITIONING SYSTEM - A mixing device for an aircraft air conditioning system includes a plurality of cold-air supply lines, which are devised to supply cold air to the mixing device. A plurality of warm-air supply lines is further provided, which are devised to supply warm air to the mixing device. A first premixing chamber is connected to the cold-air supply lines and devised to mix the cold air that is fed through the cold-air supply lines into the first premixing chamber. A second premixing chamber is connected to the warm-air supply lines and devised to mix the warm air that is fed through the warm-air supply lines into the second premixing chamber. Finally, a main mixing chamber is connected to the first and the second premixing chambers and devised to mix the cold air premixed in the first premixing chamber with the warm air premixed in the second premixing chamber. | 05-23-2013 |
20140104732 | SUPPLY SYSTEM FOR AN AIRCRAFT, USE OF A SHIELDED SUPPLY LINE IN AN AIRCRAFT AND AN AIRCRAFT WITH A SUPPLY SYSTEM - A supply system for supplying energy in an aircraft includes at least one electrical line including at least one core connectable to a pole of a current source, an electrically conductive shield, and a detection unit having at least two electrical inputs. The shield surrounds the at least one core under a distance and creates an intermediate space between the at least one core and the shield. At least one port of the detection unit is connected to the at least one core. At least another port of the detection unit is connected to at least one of the shield and the at least one core. The detection unit is adapted for detecting a differential current over the at least one core or an absolute current between the shield and a ground potential for generating a warning signal if a predetermined threshold value for the detected current value is exceeded. | 04-17-2014 |