Abstract: An installation for powder coating articles, in particular vehicle bodies, comprises a coating booth, in which a plurality of application devices for the powder coating may be arranged. The articles to be coated are located during the coating process on a rotating rotary stand. Application devices located in various angular positions relative to the axis of the rotary stand may be charged with powder coatings of different colors. A collecting hopper is located at the bottom of the coating booth, the outlet opening of which collecting hopper may be brought as desired into connection with various recovery devices for powder overspray. To coat articles of different colors, the application devices charged with powder coating of the appropriate color are activated in each case and the recovery device which collects the powder of the corresponding color is brought into connection with the outlet opening of the collecting hopper.

Abstract: A method for materials processing by means of plasma-inducing high-energy radiation, especially laser radiation, in which the instantaneous intensity of the plasma radiation is measured at plural locations of a vapor capillary. So that the method can also be performed with perfect welding results on workpieces of very small thickness, shapes of two spaced-apart peak intensity regions, or of another type of electromagnetic radiation emitted from the vapor capillary, and of a minimum region that can be formed between these two regions of extreme values are detected metrologically, the so detected shapes of the regions of extreme values are compared with predetermined region shapes, and control of the materials processing operation takes place as a function of deviations of the detected shapes from the predetermined region shapes.

Abstract: The invention relates to measuring the concentration of analytes with the aid of an oxidase in an immersion sensor situated in a fluid or in a matrix containing fluid. Oxygen diffuses into the enzyme layer from within, from a gas-filled space connected to the atmosphere and/or to an oxygen reservoir. This enables oxygen saturation of the oxidase in a low-oxygen or oxygen-free medium and/or at high analyte concentrations. The analyte diffuses into the enzyme layer in a channel or a number of channels which contain(s) water and limit(s) diffusion, wherein the channel/channels on the surface of the sensor is/are filled with a protein-impermeable, hydrophilic matrix. By increasing the channel cross-section on the surface of the sensor and/or by connecting the channel/channels to a protein-impermeable, porous, hydrophilic layer on the surface of the sensor, the effect of outer deposits on the diffusion resistance of the analyte is reduced.

Abstract: A method for processing workpieces by means of high-energy radiation, wherein the radiation is focused by a processing optic onto a processing site. The light radiation emanating form the workpiece is received by the same processing optic and is analyzed by a detector. An optical measurement with respect to the surface of the workpiece is performed in a processing area of the workpiece by means of an external source of measuring light, utilizing measuring light reflected from the processing area. The same processing optic is used to focus radiation onto the processing site and to receive radiation emanating from the workpiece at the processing site.

Abstract: The invention relates to various embodiments of a kit for simultaneous qualitative and/or quantitative determination of numerous analytes, which in particular enables the density of immobilized biological or biochemical or synthetic recognition elements for the determination of said analytes, i.e. the coating density of the measurement area dedicated for these recognition elements, to be referenced. The invention also relates to analytical systems based on the kit according the invention as well as to methods carried out therewith to determine one or more analytes and the use thereof.

Abstract: A sensor platform, based on a planar optical thin-film waveguide is used to determine one or more luminescences from one or more measurement areas on the sensor platform. The sensor platform has a first optically transparent layer on a second optically transparent layer of lower refractive index than the first optically transparent layer, and at least one grating structure to incouple excitation light to the measurement areas or to outcouple luminescence light from the measurement areas. An optical system is also used for luminescence determination. Further, an analytical system having the sensor platform, the optical system, and a supply device to bring one or more samples in contact with the measurement areas on the sensor platform is used for luminescence determination.

Abstract: The invention is related to different embodiments of a kit for the simultaneous qualitative and/or quantitative determination of a multitude of analytes comprising

Abstract: The invention relates to an enzymatic-electrochemical measuring device, based on a Clark electrode, comprising an Ag/AgCl reference electrode as the anode and an electrochemically active working electrode, said electrodes being configured from a layer of electrolyte, a hydrophobic membrane and an enzyme as a sensor. The invention is characterised in that at least two of the sensors are arranged as dual sensors, the electrodes of both sensors are wetted in a uniform manner and covered by a layer of electrolyte and a membrane with hydrophobic properties, the hydrophobic membrane is a predominantly gas-permeable polymer, on which, in the case of the working electrode, an enzyme is immobilised, whereas the hydrophobic membrane of the other sensor is devoid of enzymes.

Abstract: An installation for powder coating articles (2), in particular vehicle bodies, comprises a coating booth (10), in which a plurality of application devices (55) for the powder coating may be arranged. The articles (2) to be coated are located during the coating process on a rotating rotary stand (7). Application devices (55) located in various angular positions relative to the axis of the rotary stand (7) may be charged with powder coatings of different colours. A collecting hopper (18) is located at the bottom of the coating booth (10), the outlet opening (20) of which collecting hopper may be brought as desired into connection with various recovery devices (21 to 26) for powder overspray.

Abstract: The invention is related to a one- or two-dimensional arrangement of flow cells, as part of an array of sample compartments, with at least one in- and outlet for each sample compartment, formed by a base plate and a body, with an arrangement of spatial recesses corresponding to the (geometrical) arrangement of the sample compartments, combined with said base plate. The arrangement allows for supplying to or removing from the sample compartments, which can be arranged at a high quantity on a small base area, even very small amounts of samples or reagents.

Abstract: The invention is related to a variable embodiment of a sensor platform based on a planar thin-film waveguide for the determination of one or more luminescences from one or more measurement areas on said sensor platform, comprising an optical film waveguide of different layers (“stratified waveguide”) with a first optically transparent layer (a) on a second optically transparent layer (b) of lower refractive index than layer (a) and at least one grating structure for the incoupling of excitation light to the measurement areas or outcoupling of luminescence light from the measurement areas. The invention is also related to an optical system for luminescence determination and to an analytical system, comprising a sensor platform according to the invention, an optical system according to the invention, and supply means for contacting one or more samples with the measurement areas on the sensor platform.

Abstract: The present invention relates to a crane vehicle with an overload safety unit, with a jib, preferably a telescoping jib, hinged to its superstructure which jib can be luffed by means of a luffing ram which is hinged to the jib and the superstructure, with extending sliding beams which are positioned at the end parts of the longitudinal sides of the carrier which face each other and which are provided at their ends with extending stabilizer bases, and with a unit measuring the swing angle of the jib the signals of which unit are fed to a processing unit of the overload safety unit, where the overload safety unit generates a warning signal and/or stops the crane operation when the crane reaches or exceeds limits which endanger its stability.

Abstract: A process for material working with plasma induced by high-energy radiati especially laser radiation, in which the radiation originating from the region of the workpiece is observed along the axis of the laser radiation focused along the axis on the workpiece as a function of the time. To obtain a measure of the penetration depth of the vapor capillary in the workpiece the process is so carried out that exclusively the cross section of the vapor capillary is observed with a depth of field encompassing the entire workpiece thickness, and that the mean value of the intensity of the plasma radiation is used as a measure of the penetration depth.

Abstract: The present invention relates to a crane vehicle with a jib, preferably a telescoping jib, hinged to its superstructure which jib can be luffed by a luffing ram which is hinged to the jib and the superstructure, with extending sliding beams which are positioned at the end parts of the longitudinal sides of the carrier which face each other and which are provided at their ends with extending stabilizer bases, and with an overload safety unit which generates a signal and/or stops the crane operation when the crane reaches or exceeds limits which endanger its stability. In accordance with the invention a monitoring unit is provided which detects the extension state of the sliding beams and which feeds the signals corresponding to the relevant extension state of the individual sliding beams to the overload safety unit and the overload safety unit assumes the lowest extension length of one of the sliding beams for all sliding beams to determine the limits which endanger the stability.

Abstract: A method of machining workpieces with a laser beam wherein the machining cess, in particular the melting depth or the through-melting distance is monitored by detecting an optical and/or acoustical signal created by an unshielded laser-induced plasma or vapor. In order to receive monitoring date which as much as possible is independent of signal variations in the process the signals are subjected to a frequency analysis and the average amplitudes (Ax, Ay) of two different frequency bands (x, y) of the analyzed frequencies are used with a predetermined calculation function to determine a rating value (B).

Abstract: A process for treating workpieces by means of laser radiation, particularly or the cutting, hole burning and material removal with respect to metallic workpieces, in which the treated site of the workpiece is monitored by a radiation detector which contributes to reducing the intensity of the laser radiation when an upper limit value is reached and to increasing it when a lower limit value is reached.