Abrégé

A device and a method for foam analysis. The device comprises a cylindrical sample container with a transparent wall, at least one illumination device and a camera, which. can be moved on a track. The curvature of the web runs parallel to the wall of the container. The illumination device directs a light beam onto the wall of the cylindrical sample container at an angle which deflects the light beam into the sample vessel when liquid is present on the inside of the sample container and causes a total reflection when air or another gas fills the foam pores. The camera and the illumination unit are moved along the path in the circumferential direction of the wall of the sample container such that a region to be examined is illuminated in steps or in a continuous progression and the camera records the totally reflected light in the region.

Classes IPC  ?

• G01N 21/552 - Réflexion totale atténuée
• G01N 1/28 - Préparation d'échantillons pour l'analyse
• G01N 21/03 - Détails de structure des cuvettes

Produits et services

Measuring apparatus; Measuring instruments; Measuring apparatus and sensors, in particular for measuring the dynamic surface tension of liquids; Measuring apparatus and sensors for detecting contaminants on surfaces; Measuring apparatus and sensors for measuring the contact angle of liquid drops; Measuring apparatus and sensors to control the wettability or activation of surfaces; Measuring apparatus and sensors for surface energy determination; Regulating apparatus for influencing process solutions based on the aforesaid measurements; Computer hardware and computer software; Measuring apparatus and sensors for measuring and checking the cleanliness of parts; Measuring apparatus and sensors for monitoring bath contamination in industrial plants and laboratories; Scientific, photographic, optical, measuring, signalling, checking (supervision) apparatus en instruments. Installation, maintenance and repair of measuring devices, measuring instruments, measuring apparatus and sensors and computer hardware therefor. Research and technical development of new products, for others; Physical-technical laboratory services (except radiological measurements); Technical project planning of systems for surface treatment of metallic components; Engineering services; Physics [research]; Chemist services; Scientific and technological services and research in the fields of measuring technology, parts cleaning, surface coating and workpiece coating; Industrial analysis and research in the fields of measuring technology, parts cleaning, surface coating and workpiece coating; Design and development of computer hardware and software in the fields of measuring technology, parts cleaning and coating of workpieces; Measurement services; Rental of measuring apparatus and computer hardware and software therefor.

Produits et services

Measuring apparatus, Measuring instruments; Meters and sensors, In particular tensiometers for measuring the dynamic surface tension of liquids; Measuring apparatus and sensors, in particular for measuring surfactant concentration; Measuring apparatus and sensors, in particular for measuring and testing the fully automatic testing of foaming characteristics; Measuring equipment and sensors for detecting organic contamination on surfaces, in particular metallic surfaces; Regulating apparatus for influencing process solutions based on the aforesaid measurements; Computer hardware and computer software; Measuring apparatus and sensors for measuring and checking the cleanliness of parts; Measuring apparatus and sensors for measuring and monitoring bath contamination in industrial installations and laboratories; Scientific, photographic, optical, measuring, signalling, checking (supervision) apparatus en instruments; the aforesaid all being for measuring or diagnosing fluids, and for determining physical variables of fluid mixtures , including surface tension, viscosity, conductivity and pH value, other than radiological measurement variables, for determining foaming characteristics, for laboratory or process technology, parts cleaning and coating of workpieces. Installation, maintenance and repair of measuring devices, measuring instruments, measuring apparatus and sensors and computer hardware therefor, all being for laboratory or process technology, parts cleaning and coating of workpieces. Services of a research and development office in the field of measuring or diagnosing fluids; Physical-technical laboratory services (except radiological measurements); Planning of installations for the surface treatment of metallic components; Engineering services, Physics [research]; Chemist services; Scientific and technological services and research in the fields of measuring technology for laboratory or process technology, parts cleaning and coating of workpieces; Industrial analysis and research services in the fields of measuring technology for laboratory or process technology, parts cleaning and coating of workpieces; Design and development of computer hardware and software in the fields of measuring technology for laboratory or process technology, parts cleaning and coating of workpieces; Measurement services; Rental of measuring apparatus and computer hardware and software therefor for laboratory or process technology.

Abrégé

The subject matter of this invention is a device for measuring the contact angle of a liquid drop on a material surface. The shadow of a drop of a test liquid is projected onto a tilted shadow surface. An image of the drop on the shadow surface is recorded with an image recording device, and the contact angle is calculated from the image and the known angle of tilt of the shadow surface. A method that is suitable for this is likewise disclosed.

Classes IPC  ?

• G01C 1/00 - Mesure des angles
• G01B 1/00 - Instruments de mesure caractérisés par l'usage d'un matériau spécifique
• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé
• G01N 13/02 - Recherche de la tension superficielle des liquides
• G01B 11/26 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des angles ou des cônesDispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour tester l'alignement des axes

Produits et services

Measuring apparatus, Measuring instruments; Meters and sensors, In particular for assessing surface cleanliness; Measuring equipment and sensors for detecting organic contamination on surfaces, in particular metallic surfaces; Regulating apparatus for influencing process solutions based on the aforesaid measurements; Computer hardware and computer software. Installation, Servicing and repair of measuring apparatus and Associated computer hardware. Measurement services; Rental of measuring apparatus and Associated computer hardware and Software; Physical-technical laboratory services (except radiological measurements); Planning of installations for the surface treatment of metallic components; Services of a research and development office, Engineering services, Physics [research]; Scientific and technological services and research services, All in the fields of measuring technology, parts cleaning and coating of workpieces; Industrial analysis and research services in the fields of measuring technology, parts cleaning and coating of workpieces; Device and Computer hardware development and Software in the fields of measuring technology, parts cleaning and coating of workpieces; The installation, Maintenance and repair of computer software for measuring equipment.

Produits et services

Measuring apparatus and sensors for diagnosing liquids, and for determining the concentration of liquid mixtures by measuring physical variables, including surface tension, viscosity, conductivity and pH value, other than radiological measurement variables, for process technology; Regulating apparatus for regulating process solutions on the basis of the aforesaid measurements; Computer software based solely on expert systems for measuring apparatus and sensors for diagnosing liquids and for determining the concentration of liquid mixtures by measuring physical variables of the aforesaid liquids, including surface tension, temperature, viscosity, conductivity, pH, acoustic properties and fluorescence intensity, and for determining the cleanliness of solid surfaces by measuring the fluorescence characteristics of the aforesaid surfaces. Wet-chemical treatment of metallic components, namely cleaning, pre-treatment and coating of metallic components. Physical-technical laboratory services (except radiological measurements); Planning of installations for the surface treatment of metallic components; Services of a research and development office, Engineering services, Physics [research]; Scientific and technological services and research in the fields of parts cleaning and coating of workpieces; Industrial analysis and research in the fields of parts cleaning and coating of workpieces; Design and development of computer hardware and software in the fields of parts cleaning and coating of workpieces, and based solely on expert systems for measuring apparatus and sensors for diagnosing liquids and for determining the concentration of liquid mixtures by measuring physical variables of the aforesaid liquids, including surface tension, temperature, viscosity, conductivity, pH, acoustic properties and fluorescence intensity, and for determining the cleanliness of solid surfaces by measuring the fluorescence characteristics of the aforesaid surfaces; In particular expert systems.

Produits et services

Physical apparatus, instruments and sensors for the quality testing of liquids and component surfaces by measuring physical variables, including surface tension, substance concentration, foam properties, viscosity, conductivity, density, fluorescence, turbidity, pH-value, purity (except radiological measurement parameters); mobile and stationary checking (supervision) apparatus for monitoring and influencing industrial cleaning and coating baths on the basis of the aforesaid measurements; tensiometers, fluorescence meters, foam meters, thickness gauges, hydrogel sensors. Wet-chemical treatment of metallic components, namely cleaning, pretreatment and coating of metallic components. Physical-technical laboratory services (except radiological measurements); planning of installations for the surface treatment of metallic components.

Produits et services

Mobile measuring apparatuses (excluding computers and computer parts, data processing apparatuses) and sensors for measuring the concentration of contents of liquids.

Abrégé

A hand tensiometer for measuring the surface tension of liquids or for measuring of substance concentrations in a liquid wherein a gas volume stream entered from a gas source (10) through a buffer storage (11) into a measuring capillary (3) forms bubbles in the liquid at the end of the measuring capillary (3), and wherein means for steady measuring and for adjusting the gas volume stream are furnished.

Classes IPC  ?

• G01N 13/02 - Recherche de la tension superficielle des liquides

Produits et services

Mobile measuring apparatus for analysing liquids by measuring their surface tension;tensiometers for laboratory use in research, product development and quality assurance.

Abrégé

Disclosed is a hand-held tensiometer for measuring the surface tension of liquids or the concentration of a substance in a liquid according to a bubble pressure method featuring an automatically controlled bubble life. Said tensiometer comprises a housing which is provided with at least one measuring capillary that is fastened thereto and additional optional sensors, operator's means and display means, a power supply, a gas source for producing bubbles on at least one measuring capillary, means for adjusting the bubble lives, means for measuring and regulating the gas volume flow introduced into the measuring capillary, an electronic/processor unit for controlling all internal processes, and means for storing data. The bubble life or a succession thereof is automatically regulated according to one or several predefined or permanent setpoint values by measuring and adjusting or measuring and regulating a gas volume flow.

Classes IPC  ?

• G01N 13/02 - Recherche de la tension superficielle des liquides

Produits et services

Measuring apparatus, measuring equipment and sensors for diagnosing surface contamination in metal parts; measuring apparatus, measuring equipment and sensors for measuring contamination caused by oils, fats, lubricants and other organic substances to metal surfaces for the purpose of monitoring and controlling metal-cleaning processes.

Produits et services

Measuring apparatus and sensors for the diagnosis of liquids and for determining the concentration of liquid mixtures by measuring physical quantities, including surface tension, viscosity, conductivity and pH value (other than radiological measurements); regulating apparatus for influencing process solutions based on the aforesaid measurments.

Produits et services

Measuring apparatus for the diagnosis of liquids and for determining the concentration of liquid mixtures by measuring physical quantities, including surface tension, viscosity, conductivity, density and pH value (excluding radiological measurements) for use in process engineering; sensors for measuring physical quantities, including surface tension, viscosity, conductivity, density, and pH value (excluding radiological measurements) for process engineering.