Abstract: A device for measuring a pressure in a pressurized vessel with an at least partially flexible wall. The device includes a sensor head and a device for pressing a contact surface of the sensor head against the wall. The sensor head has a detection region of the contact surface and a support edge that surrounds the detection region and is arranged in a continuation of the contact surface. A detection device is provided in the detection region for detecting a measured value for a force or pressure. An evaluation unit evaluates a progression of the measured value during a movement of the sensor head relative to the wall. A contact measured value p* is determined from a portion of the progression indicating that the pressure acting on the detection region is at least substantially equal to the pressure acting on the support edge. A pressure value is assigned to the contact measured value p*.

Abstract: A device for measuring a pressure in a pressurized vessel with an at least partially flexible wall. The device includes a sensor head and a device for pressing a contact surface of the sensor head against the wall. The sensor head has a detection region of the contact surface and a support edge that surrounds the detection region and is arranged in a continuation of the contact surface. A detection device is provided in the detection region for detecting a measured value for a force or pressure. An evaluation unit evaluates a progression of the measured value during a movement of the sensor head relative to the wall. A contact measured value p* is determined from a portion of the progression indicating that the pressure acting on the detection region is at least substantially equal to the pressure acting on the support edge. A pressure value is assigned to the contact measured value p*.

Abstract: A method for determining the tread depth of a vehicle tire, with the tire being mounted on a vehicle, the tire being rolled over or placed on a measuring station, the tread of the tire being optically sensed transversely to the rolling direction of the tire on at least one measuring line, a ray fan extending from a light source being reflected at the tire surface and a signal of the reflected ray fan being recorded by a sensor, and the signal of the reflected ray fan being evaluated by way of a triangulation method, is characterized in that the signal is recorded in a non-orthogonal manner to the tire surface.

Abstract: A method for automatically identifying a type of vehicle on a test stand includes: a) supplying predetermined parameters characterizing the type of vehicle; b) providing a test stand encompassing a plurality of sensors; c) sensing at least some areas of a tire on the test stand; and d) determining at least one tire property from values sensed by means of at least some of the sensors. The properties determined in step d) are compared with the predetermined parameters, and the type of vehicle is assigned on that basis, or parameters of a new type of vehicle are defined if the properties fail to match the parameters.

Abstract: A method for ascertaining the pressure and the profile depth in a pneumatic vehicle tire which is fitted to a vehicle, wherein the pressure is detected with the aid of an arrangement comprising load sensors, which arrangement supplies force signals for a two-dimensional pattern of the force distribution which is exerted by the vehicle tire in contact with the sensors when the vehicle moves over the arrangement, wherein the tire pressure is determined from the force distribution independently of the method of manufacture or the model of the tire and of the vehicle, is characterized in that the profile depth of the tire is determined before, while or after the pressure is determined.

Abstract: A method for determining the tread depth of a vehicle tire, with the tire being mounted on a vehicle, the tire being rolled over or placed on a measuring station, the tread of the tire being optically sensed transversely to the rolling direction of the tire on at least one measuring line, a ray fan extending from a light source being reflected at the tire surface and a signal of the reflected ray fan being recorded by a sensor, and the signal of the reflected ray fan being evaluated by way of a triangulation method, is characterized in that the signal is recorded in a non-orthogonal manner to the tire surface.

Abstract: A system for detecting the pressure in a pneumatic vehicle tire which is mounted on a vehicle and/or the speed of the vehicle, having an arrangement composed of load sensors which supplies force signals for a two-dimensional pattern of the distribution of force which is exerted by the vehicle tire in contact with the sensors when the vehicle moves over the arrangement, a computer which is programmed in such a way that it defines the tire pressure and/or the speed on the basis of the distribution of force independently of the method of manufacture or the model of the tire and of the vehicle, and a device for displaying the pressure and/or the speed, is characterized in that the arrangement composed of load sensors comprises at least two series of load sensors which are arranged one behind the other in the direction of travel, wherein at least one row of load sensors is offset with respect to one or more rows of the load sensors by a predetermined absolute value transversely with respect to the direction of tra

Abstract: A method for ascertaining the pressure and the profile depth in a pneumatic vehicle tire which is fitted to a vehicle, wherein the pressure is detected with the aid of an arrangement comprising load sensors, which arrangement supplies force signals for a two-dimensional pattern of the force distribution which is exerted by the vehicle tire in contact with the sensors when the vehicle moves over the arrangement, wherein the tire pressure is determined from the force distribution independently of the method of manufacture or the model of the tire and of the vehicle, is characterized in that the profile depth of the tire is determined before, while or after the pressure is determined.

Abstract: A system for detecting the pressure in a pneumatic vehicle tire which is mounted on a vehicle and/or the speed of the vehicle, having an arrangement composed of load sensors which supplies force signals for a two-dimensional pattern of the distribution of force which is exerted by the vehicle tire in contact with the sensors when the vehicle moves over the arrangement, a computer which is programmed in such a way that it defines the tire pressure and/or the speed on the basis of the distribution of force independently of the method of manufacture or the model of the tire and of the vehicle, and a device for displaying the pressure and/or the speed, is characterized in that the arrangement composed of load sensors comprises at least two series of load sensors which are arranged one behind the other in the direction of travel, wherein at least one row of load sensors is offset with respect to one or more rows of the load sensors by a predetermined absolute value transversely with respect to the direction of tra

Abstract: Disclosed is a method for automatically identifying a type of vehicle or a type of tire on a test stand. Said method comprises the following steps: a) predetermined parameters characterizing the type of vehicle or type of tire are supplied; b) a test stand encompassing a plurality of sensors is provided; c) at least some areas of a vehicle or tire are sensed on the test stand; d) at least one vehicle or tire property is determined from values sensed by means of at least some of the sensors. Said method is characterized in that: e) the properties determined in step d) are compared with the predetermined parameters; f) the type of vehicle or type of tire is assigned based on the result obtained in step e), or parameters of a new type of vehicle or type of tire are defined if a type of vehicle or type of tire cannot be assigned because properties fail to match the parameters.

Abstract: The invention relates to device for measuring the thickness of a transparent sample (2), particularly a glass strip or a glass pane, involving the use of: a first light beam (L1), particularly a first laser beam, which strikes upon the front surface (8) of the sample (2) at a first angle of incidence (?1); a second light beam (L2), particularly a second laser beam, which strikes upon the front surface (8) of the sample (2) at a second angle of incidence (?2), the first angle of incidence (?1) and the second angle of incidence (?2) being different, and; at least one detector (11, 12) for detecting the light beams (L1?, L1?, L2?, L2?) of the first and second incident light beams (L1, L2) reflected by the sample, and for determining the position thereof.

Abstract: The invention relates to a device and a corresponding method for detecting scratches on the surface (2) of a material, in particular glass. Said device comprises an illumination unit (3) and a recording unit (4), which register a scanning line (6) on the surface (2) of the material and can be displaced in relation to said surface (2). In order to more accurately identify scratches, the illumination unit (3) comprises at least one light strip (9), which generates parallel light pools transversally to the scanning line (6), said pools being diffuse or quasi-diffuse along the scanning line (6) and preferably at least one light source (16), which generates a diffuse or quasi-diffuse light transversally to the scanning line (6).

Abstract: The invention relates to a device and a corresponding method for detecting scratches on the surface (2) of a material, in particular glass. Said device comprises an illumination unit (3) and a recording unit (4), which register a scanning line (6) on the surface (2) of the material and can be displaced in relation to said surface (2). In order to more accurately identify scratches, the illumination unit (3) comprises at least one light strip (9), which generates parallel light pools transversally to the scanning line (6), said pools being diffuse or quasi-diffuse along the scanning line (6) and preferably at least one light source (16), which generates a diffuse or quasi-diffuse light transversally to the scanning line (6).

Abstract: The invention relates to device for measuring the thickness of a transparent sample (2), particularly a glass strip or a glass pane, involving the use of: a first light beam (L1), particularly a first laser beam, which strikes upon the front surface (8) of the sample (2) at a first angle of incidence (?1); a second light beam (L2), particularly a second laser beam, which strikes upon the front surface (8) of the sample (2) at a second angle of incidence (?2), the first angle of incidence (?1) and the second angle of incidence (?2) being different, and; at least one detector (11, 12) for detecting the light beams (L1?, L1?, L2?, L2?) of the first and second incident light beams (L1, L2) reflected by the sample, and for determining the position thereof.

Abstract: The invention relates to a method for detecting optical errors, especially in refractive power, in large surface panels made of transparent material such as glass, by evaluating an observed image. The steps of the inventive method include: projection of a defined model consisting of regular sequences, whereby the sequences includes two varying light intensities and arrangement of the panel in the optical path of projection. The inventive method enables detection of optical errors in at least one dimension of a panel without a reference screen by projecting the model onto a camera, whereby a model sequence is respectively represented on a certain number of adjacent camera pixels and the number is an integral multiple of the sequence.

Abstract: The invention concerns a method of measuring the course of a reflective surface of an object including the steps of projecting a defined pattern of at least two different light intensities onto the surface to be measured; observing at least one section of the surface by at least one camera; and evaluating the observed section on the basis of the camera data. The invention provides a simply designed and accurately controllable method in that the pattern produces a mirror image in the reflective surface, and in that the observed section includes a section of the mirror image of the pattern. The invention further concerns an instrument for determining the course of the reflective surface of an object, the instrument including a device for generating a light pattern and having at least one camera for observing at least one section of the surface. The invention provides a simply designed and accurately controllable instrument in that the camera is adjusted precisely to a mirror image of the light pattern.

Abstract: Process for contactless measurement of the electrical resistance (or of the electrical conductivity) of a preferably flat material (test material) in which an alternating current is capacitively coupled into the test material with the help of two coupling electrodes. The total impedance is measured at at least three different frequencies, and from that measurement, the stray capacitance between the two coupling electrodes, the coupling capacitance between the two coupling electrodes and the test material, as well as the resistance of the test material are determined. In a preferred embodiment the process is used for controlling the windshield wipers of a motor vehicle.