Abstract: Devices and methods for inspecting containers for the presence of foreign matter include, in at least one embodiment, at least one sampling head, at least one pressure sensor, and a filter. The at least one sampling head is configured to introduce an amount of a first fluid into a container and to remove an amount of a second fluid from the container for inspection for the presence of foreign matter. The at least one pressure sensor is configured to measure a pressure of the second fluid upon removal of the second fluid from the container. The filter is arranged in the at least one sampling head and is configured to filter the second fluid.

Abstract: The invention relates to an apparatus for identifying one or more substances in a material—in particular, wherein the material is present in granulate form—comprising at least one light source—preferably in the form of a laser—for irradiating a sample of the material with light of at least one wavelength, a detector for detecting the light re-emitted and/or transmitted by the sample, and an analysis device for the spectroscopic analysis of the detected light, wherein the analysis device interacts with the detector, and these are embodied in such a way for analyzing the detected light by means of a) UV/VIS spectroscopy and/or b) fluorescence spectroscopy and/or c) Raman spectroscopy and/or d) absorption spectroscopy, and for creating a first identification result for at least one substance of the sample and, in the case of an ambiguous first identification result, creating a second identification result for the at least one substance on the basis of a e) fluorescence light decay time analysis, “FLZA,” wh

Abstract: Devices and methods for inspecting containers for the presence of foreign matter include, in at least one embodiment, at least one sampling head, at least one pressure sensor, and a filter. The at least one sampling head is configured to introduce an amount of a first fluid into a container and to remove an amount of a second fluid from the container for inspection for the presence of foreign matter. The at least one pressure sensor is configured to measure a pressure of the second fluid upon removal of the second fluid from the container. The filter is arranged in the at least one sampling head and is configured to filter the second fluid.

Abstract: The invention provides a method for identifying plastics and/or the additives therein, wherein at least some of the plastic material is irradiated with light of at least one wavelength, at least some of the light reflected by the plastic material is detected and analyzed, and the plastic material and/or the additive therein is/are identified on the basis of the result of the analysis. The disclosed method utilizes a fluorescence decay time constant of the intrinsic fluorescence of the plastic material and, if applicable, of the additive(s) therein, which is determined on the basis of the detected light, and the plastic material and/or the additive(s) therein is/are identified on the basis of the determined fluorescence decay time constant.

Abstract: The invention relates to a method for identifying plastics and/or the additives therein, wherein at least some of the plastic material is irradiated with light of at least one wavelength, at least some of the light reflected by the plastic material is detected and analyzed, and the plastic material and/or the additive therein is/are identified on the basis of the result of the analysis. The disclosed method is characterized in that a fluorescence decay time constant of the intrinsic fluorescence of the plastic material and, if applicable, of the additive(s) therein is determined on the basis of the detected light, and the plastic material and/or the additive(s) therein is/are identified on the basis of the determined fluorescence decay time constant.

Abstract: A laser processing machine for processing workpieces includes a beam guide containing a gas atmosphere, and also includes an apparatus for investigating the gas atmosphere in the beam guide for impurities. The investigation apparatus makes use of the photoacoustic effect. The measuring apparatus has a measuring chamber and at least one measuring head, where the beam guide acts as the measuring chamber. As a measuring chamber, the beam guide contains the gas atmosphere that is to be investigated and also a modulated laser beam modulated. The measuring head(s) are integrated into the beam guide and are used to detect the photoacoustic effect in the measuring chamber.

Abstract: The invention concerns a method for regulating the concentrations of components of additives in a printing process liquid for maintaining predetermined desired concentrations of components of additives in a printing process liquid, wherein the actual concentrations of components are determined followed by redosing of measured components to a predetermined desired concentration. The method is characterized in that the components to be measured are spectroscopically detected. The invention also concerns a device for regulating the concentrations of components of additives in a printing process liquid comprising a measuring means for measuring the concentrations of at least part of the components in the process liquid, comprising a control loop and a means for redosing at least part of the components, wherein the measuring means comprises at least one spectrometer.

Abstract: The invention concerns a sample chamber used for monitoring the concentrations of components of additives in a printing process liquid for maintaining predetermined desired concentrations of components of additives in a printing process liquid, wherein the actual concentrations of components are determined followed by redosing of measured components to a predetermined desired concentration.

Abstract: The invention concerns a sample chamber used for monitoring the concentrations of components of additives in a printing process liquid for maintaining predetermined desired concentrations of components of additives in a printing process liquid, wherein the actual concentrations of components are determined followed by redosing of measured components to a predetermined desired concentration.

Abstract: A laser processing machine for processing workpieces includes a beam guide containing a gas atmosphere, and also includes an apparatus for investigating the gas atmosphere in the beam guide for impurities. The investigation apparatus makes use of the photoacoustic effect. The measuring apparatus has a measuring chamber and at least one measuring head, where the beam guide acts as the measuring chamber. As a measuring chamber, the beam guide contains the gas atmosphere that is to be investigated and also a modulated laser beam modulated. The measuring head(s) are integrated into the beam guide and are used to detect the photoacoustic effect in the measuring chamber.

Abstract: The invention concerns a method for regulating the concentrations of components of additives in a printing process liquid for maintaining predetermined desired concentrations of components of additives in a printing process liquid, wherein the actual concentrations of components are determined followed by redosing of measured components to a predetermined desired concentration. The method is characterized in that the components to be measured are spectroscopically detected. The invention also concerns a device for regulating the concentrations of components of additives in a printing process liquid comprising a measuring means for measuring the concentrations of at least part of the components in the process liquid, comprising a control loop and a means for redosing at least part of the components, wherein the measuring means comprises at least one spectrometer.

Abstract: The invention concerns a method and a device for measuring and regulating the concentrations of chemical compounds in a processing liquid for offset printing, wherein the concentrations of the individual chemical components are detected online by a measuring system and are redosed by a regulating system such that the respective desired value of each individual component in the processing liquid is realized at all times.

Abstract: The invention concerns a method and a device for detection of and differentiation between base materials, colors and contamination in granulate-like or tablet-shaped substances, characterized in that the substances are illuminated in a linear manner with a laser beam, the optical radiation re-emitted by the substances is spectroscopically analyzed, and the substances are classified and sorted into different groups.

Abstract: The invention concerns a method and device for automatic cleaning of opto-electronic measuring systems used in process-technology for the analysis of substances in liquids and gases by means of optical absorption and fluorescence. The method is characterized in that the soiling degree is detected by the opto-electronic sensor system itself and, with predetermined soiling degree, a cleaning liquid cleans the soiling-sensitive optical components and detects the residual soiling, which is then evaluated quantitatively and compensated for in the signal analysis.

Abstract: A process in which by a bar code formed by bars are gaps located between them with different electromagnetic characteristics, an electromagnetic alternating field is produced and a measuring field variable by the bar code is detected. At lease one sensor is provided with a sensor core, an exciting coil subject to high frequency located thereon and in each case at least one sensor coil closely adjacent to the exciting coil. The bar code is formed by electrically conductive material bars placed on a carrier with gaps.

Abstract: A method and device for detection and identification of liquid, solid, and gaseous foreign substances of beverages and/or beverage residues in re-usable bottles, especially in plastic bottles and other containers. Electromagnetic radiation traverses the walls of the bottles and containers at least once, and by areas of residual liquid, areas with liquid films, solid films on the inside wall and areas with contamination inside the wall are detected by the electromagnetic radiation.

Abstract: The invention relates to a process and an apparatus for the selective on-line identification and distinguishing of pollutants and contents in bottles/containers in filling systems in the beverage or drinks industry using the absorption, reflection and scattering of electromagnetic waves from the UV to the microwave range, characterized in that characteristic value pairs/ranges of wavelength and amplitude are used for identification and distinguishing.

Abstract: A method and device for measuring a volume flow of fluids in flow channels using ultrasound, wherein two ultrasonic transducers, each with a different transmitting frequency, are disposed in a flow channel in such a manner that emitted wave trains travel toward one another, with speed vectors of both wave trains having components that are in the flow direction and against the flow direction, and the superimposed signal is evaluated in terms of its position with respect to time.

Abstract: For the effective, rapid, but still cost-effective, simple analysis of the content of containers, such as returned non-disposable drink bottles, the invention provides a method for examining the gas phases in containers, such as drink bottles, particularly for sorting and eliminating bottles in a drink bottle filling plant, in which a gas sample taken from the bottles is spectroscopically examined and the dispersed beam is detected by an array of juxtaposed detectors (detector array).

Abstract: A method for the manufacture of contact lenses, especially individually fitted contact lenses, and a contact lens production system therefor is described, wherein the topography of the surface of the eye is measured three-dimensionally, the geometry of the rear face of the lens is determined so as to fit the topography measured, the optical effect of a lachrymal lens which is formed between the rear face of the lens and the surface of the eye is determined, the geometry of the front face of the lens is determined taking into account the optical effect of the lachrymal lens and the sight correction to be achieved, and the data so obtained for the lens geometry of the front and rear faces of the lens are stored and transferred to a control arrangement for the manufacture of the lens in a machine tool.