Abstract: A device for optical characterization of a sample is provided, the sample being accommodated in a receptacle container transparent to light. The device includes a camera, using which the sample may be detected, and a first light source is situated in such a way that the sample is transilluminated opposite to the viewing direction of the camera, a second light source is situated on the same side as the camera, and a laser source is situated transversely to the viewing direction of the camera.

Abstract: In a method for evaluating mechanical tests of a coating on a substrate, in a first step a mechanical stress is applied onto the coating, in a second step the substrate having the coating is isothermally clamped, in a third step an infrared photograph is generated of the region in which the mechanical stress is applied onto the coating in the first step, and in a fourth step the infrared photograph is evaluated. A device is arranged for carrying out the method.

Abstract: A device for determining the viscosity of fluids. The device includes an injector, which has a piston and a hollow cylinder with a nozzle. The device further includes a cannula. The device also includes a forward-feed device with the aid of which the piston is displaceable at a uniform speed.

Abstract: A sensor for determining the concentration of a gas in gas mixtures, which has a measuring and a reference electrode as well as a polymer layer, which is in contact with the gas mixture and with the measuring electrode. A pH sensitive electrode is provided as the measuring electrode.

Abstract: A ceramic resistor element or sensor element includes a ceramic substrate, which is exposable to a gas atmosphere containing carbon compounds, the ceramic substrate being provided with a coating. The coating includes copper, cerium and/or vanadium.

Abstract: A method and a device for developing an electrochemical measuring system, in particular a sensor, is provided. A plurality of different electrode materials are applied to at least one substrate and introduced into a medium together with at least one reference electrode. Subsequently, the electrochemical potentials of the individual electrode materials in relation to the reference electrode are determined.

Abstract: A device for analyzing a materials library includes at least one radiation source for electromagnetic radiation, which is positioned in front of the materials library, and at least two flat detectors operating in parallel, which are operable using high-sensitivity resolution and of which one is sensitive to electromagnetic radiation of a first wavelength range and the other is sensitive to electromagnetic radiation of a second wavelength range. Moreover, a method for analyzing a materials library in which the materials library is simultaneously tested using at least two methods in which electromagnetic radiation of different wavelength ranges is used. The beam is split behind the materials library as a function of wavelength and is deflected in the direction of at least two flat sensors operating using high-sensitivity resolution.

Abstract: A device for testing material properties with regard to combined tensile and shear loads, in particular for testing adhesives, includes a device for applying the force, a measuring device, a test piece receptacle, and a test piece having a bonding surface. The test piece is dimensionally stable within the intended limits of the force to be applied. This measure ensures that the shear forces acting on the joint act approximately at a right angle to the bonding surface over the entire test period, so that realistic conclusions may be drawn with regard to the material properties of the tested adhesive.

Abstract: A measuring device having a plurality of potentiometric electrode pairs situated on a substrate is described. One of the electrodes of each electrode pair represents a reference electrode and the other electrode represents a pH-sensitive working electrode. The electrode pairs form an interdigital structure, and the substrate is covered by a mask in such a way that the individual electrode pairs are separated from one another at least in the area of the interdigital structures of the electrode pairs.

Abstract: A method and a device for inspecting surface coatings on workpieces, in particular of lacquer coatings, using an image capture and/or image processing system. The image capture and/or image processing system is designed to measure and/or process electromagnetic radiation from surface coating and/or a layer beneath it which is at least partially outside of the visible wavelength range.

Abstract: A device is provided for spraying flowable spray fluids (6) having at least one fluid reservoir (1) that includes at least one partition (2, 4), for storing the spray fluid (6), a spray opening (8) being provided for the outflow of the spray fluid (6) from the device, and a corresponding fluid reservoir (1); a change of the spray fluid (6) being made easier. According to the present invention, this is achieved by having a partition of the fluid reservoir (1) include at least one adjustable partition region (2) for changing the reservoir volume of the fluid reservoir (1).

Abstract: A device for determining the viscosity of fluids. The device includes an injector, which has a piston and a hollow cylinder with a nozzle. The device further includes a cannula. The device also includes a forward-feed device with the aid of which the piston is displaceable at a uniform speed.

Abstract: A device and a method are provided for the analysis of a sample plate on which at least two material samples are situated. In the method, one impedance spectrum is measured for each of the material samples. As a function of the respectively measured impedance spectrum, a configuration of a circuit equivalent is determined which includes at least one electronic component. Then, for an error minimization computation, starting values for the components of the respective circuit equivalents are determined. In the error minimization computation, a theoretical impedance spectrum is calculated for at least one of the material samples, based on the impedance spectrum measured for the material sample, as well as the starting values for the components of the respective circuit equivalent, and fit values are determined for the components of the respective circuit equivalent.

Abstract: A metering unit for metering a substance, in particular a powder, comprising a storage container for storing the substance and a metering device rotatable about an axis of rotation, a discharge opening being provided for discharging the metered substance, is described as fulfilling higher demands of metering accuracy in comparison with the related art. This is achieved by the fact that at least one closing element is provided on the lowest end section of the metering device for completely closing the discharge opening.

Abstract: A metering device or a metering element, in particular for metering substances in the compiling of combinatory material libraries, described as comprising a metering element having a supply vessel, open on one side, for holding the substances to be metered, and a plunger, which is axially displaceable and reversibly seals the opening of the supply vessel and which has at least one, preferably centered metering orifice for metering the substances provided in the supply vessel, the supply vessel and/or the plunger having an accommodation as contact point for a mechanical gripping device. Moreover, a metering method is described.

Abstract: A device for mixing at least two media, in particular highly viscous media, having at least one mixing chamber, its volume in a mixer housing being variable by a movable plunger, and having at least one mixing tool. With the aid of an actuator, the mixing tool is insertable into the mixing chamber for mixing the media and is retractable from the mixing chamber following the mixing.

Abstract: A metering device, a metering element, and a method for operating same, the metering element having a storage container open on one side for receiving the substances to be metered and a plunger which is axially movable and reversibly seals the opening of the storage container and which preferably has at least one centrally located metering opening for metering the substances provided in the storage container, the plunger including a separation device for particles.

Abstract: A method of producing a material library of surface areas having different properties is described, in which mixtures of substances are applied to a substrate by a combinatory method so that a combinatory system is obtained. At least two suspensions are used to produce the mixtures.

Abstract: An apparatus for testing a material (2), having a measurement unit for measuring at least one electrical parameter of the material (2) to be tested, is proposed that ensures a measuring of all relevant parameters of the material (2) under identical measurement conditions. According to the present invention, this is achieved in that an optical measurement apparatus is provided for the simultaneous measurement of at least one optical parameter of the material (2) to be tested.

Abstract: A device is provided for the exhaust gas treatment of a combustion system, e.g., a diesel combustion system. The device has a first storage unit for storing at least one urea-water solution, and an exhaust gas treatment is implemented without great expenditure. According to the present invention, this result is achieved by the urea-water solution including at least one additive for chemically influencing the urea-water solution.