Abstract: The invention relates to a process and device for determining the alignment, with respect to a reference direction, of a cylindrical body (10) mounted to rotate around its lengthwise axis (22). The device including a position measurement probe (20), which is calibrated to the reference direction, being attached on the end face (12) of the body or on a surface essentially parallel to the end face, which probe gathers measurement data in at least three measurement positions around the lengthwise axis each position of which differs from the other by an angle of rotation of the body, such that one position measurement at a time is being taken. Then the alignment of the body with respect to the reference direction is computed from the determined measurement data.

Abstract: A device for aligning two machine shafts which are coupled to one another has: at least one laser light source for emitting laser light; at least one reflector for reflecting the laser light; at least one receiving device for receiving the laser light; a first arithmetic computing device for determining parallel and angular offset of the machine shafts; and an evaluation and arithmetic computing device for determining the distance of the machine mounting elements relative to the plane of symmetry which lies between the machine shafts. The plane of symmetry intersects the axes of the machine shafts essentially perpendicular to longitudinal axes of the shafts, i.e. with an angular error of less than 6°.

Abstract: A process for determining the alignment of a cylindrical body with respect to a reference direction by means of a measurement device which has a first and a second attachment area and a position measurement probe which is calibrated to the reference direction and is made for detecting a first angle of rotation of the probe around a first axis fixed in space and a second angle of rotation of the probe around a second axis fixed in space. A first measurement and a second measurement is carried out at different areas of the body, the probe being swung in contact with the peripheral surface of the body relative to the first attachment area to measure a characteristic of the first and the second angle of rotation. A comparison of the characteristic of measurements is used to determine the alignment of the body with respect to the reference direction.

Abstract: A arrangement for determining the alignment of marked axes (22, 28, 36, 38, 48, 50) of a first (20, 30, 40) and a second body (26, 32, 42) relative to one another, which is provided with a first and a second measurement device (10, 12) which can be attached to the first body or to the second body in a fixed spatial relation to the respective marked axis, the first measurement device (10) having a first source (L2) for delivering a light beam and a second (D1) and a third optoelectronic sensor (D3), and the second measurement device (12) having a second (L1) and a third source (L3) for a light beam and a first optoelectronic sensor (D2), the optoelectronic sensors being made such that they can determine the impact point of a light beam on the sensor, and the first light source being assigned to the first sensor and the second and the third light source being assigned to the second and third sensor.

Abstract: The three-dimensional orientation of a body relative to a reference direction is determined with increased accuracy by using a gyro-based azimuth and elevation measurement device which has at least four and preferably eight individual gyros. The individual gyros are positioned such that they react to rotary motions in different directions of space. In a first step all orientation measurement values are determined which are made available by three gyros at a time combined into a so-called triad. In a second step these measured values are combined in evaluated or unevaluated form into an overall measurement value of higher precision.

Abstract: A body to be bonded to a machine housing. The body may include a substantially flat adhesion surface provided with an undercut portion. The undercut portion may form a disc-like shoulder and an acute, wedge-shaped edge with the periphery of the adhesion surface, wherein the wedge-shaped edge is oriented to face away from the adhesion surface and to oppose the shoulder. The machine housing may further be provided with grooves adapted to improve the strength of a bond between an adhesive material and the adhesion surface.

Abstract: The security system as presented is used preferredly to monitor paintings and other work of art. Essential component of the security system are suspending elements, for mounting e.g. paintings. The suspending elements also serve to transmit signals (data) or electrical power, for illumination purposes. It is preferred to implement a two wire bus system with the suspending elements. In case an alarm is triggered, the system according to the invention is able to immediately identify and display the time and the place of the objects to be guarded. Several levels of monitoring capabilities are provided, which work in cooperation with hardware consisting of different sensors or transponders. The security system in accordance with one embodiment is connectable to a network.

Abstract: To detect the relative position of bodies, surfaces or the like, especially those on machines, there is an optoelectronic sensor. The latter reacts to incident light, for example, monochromatic laser light. The available receiving surface is however comparatively small for low-cost or pixel-oriented sensors. By making available a diffuser and a projecting objective lens in front of an optoelectronic sensor the usable receiving surface for incident light can be greatly increased. The diffuser or also the projecting objective lens can additionally be designed as a color filter and can be used to reduce the effects of outside light. A process is provided with which an especially accurate determination of the median point of the laser light spot incident on the target (optoelectronic sensor) can be achieved.

Abstract: A process and device are provided for determining the axial position of two spindles or shafts, for example on machine tools, with respect to parallel offset and angular offset. The process includes moving both an optical transmitting device and also an optical receiving device each into at least three different rotary positions. In this way, pertinent circles can be defined by which the location of the axis of rotation of the first spindle or the center of rotation of the second spindle can be computed in relation to one another. The parallel offset of the spindles can thus be determined in the horizontal and in the vertical plane. To determine the angular offset of the two spindles, another measurement of this type must be taken in which the optical transmitting device and the receiving device are mounted interchanged with one another on the spindles.

Abstract: An adapter for a laser gyro which acts at the same time as an impact shield. To do this, a laser gyro device is provided with a stable housing which has a jacket of elastic material. There is at least one reflecting element on the outer skin of the jacket. The reflecting element is optically connected to an optical transmitter and receiver which is securely attached in the stable housing. This optical transmitter and receiver determines the relative angular position of the reflecting element relative to the housing and thus relative to the laser gyro device. In this way, the orientation of large-volume articles to be measured, such as rollers, can be determined very accurately relative to the laser gyro device and hazard to the device by impacts is significantly reduced.

Abstract: A device for detecting or analyzing machinery damage is used preferably in the determination of defects in roller bearings. Pulse-like machinery or bearing noise acquired by a sensor is converted into special time signals. These time signals correspond to events which are basically periodic in occurrence. The time signals are sent to one, preferably several, classification units depending on the time differences. Before classification, combination of adjacent time signals or events is performed using their pulse heights. The combining is multiplicative or obeys some other bivalent relation. Classification forms a frequency distribution with an abscissa which is divided into time units. Specific characteristics of the frequency distribution provide information on incipient or manifest machinery damage.

Abstract: A process for determining the alignment of a cylindrical body (10) with respect to a reference direction (18), by a position measurement probe (14) which is calibrated to the reference direction, a first position measurement being taken in a first measurement position on the peripheral surface (12) of the body and a second position measurement being taken in at least one second measurement position on the peripheral surface of the body which is displaced by an angle of rotation (&phgr;) in the peripheral direction with respect to the axis of the body from the first measurement position, and from the measurements data is calculated with respect to the alignment of the body with respect to the reference direction.

Abstract: The invention relates to a process for testing of a workpiece by means of eddy currents induced by a field coil in the workpiece and from which a measurement signal is obtained by means of a measurement sensor, a pattern signal representative of a workpiece fault being generated, a correlation function of the measurement signal acquired by the sensor with the pattern signal being determined, and the correlation function being evaluated in order to detect a fault in the workpiece. The invention furthermore relates to a device for executing the process.

Abstract: A process for analyzing a signal which composed of a sequence of discrete amplitude values to which portions with different phase angle contribute. Here, a reshaped signal is formed in which the sequence of amplitude values is changed such that the amplitude values, or instead of them approximation values which have been brought near the amplitude values, follow one another in ascending or descending sequences according to their size.

Abstract: The invention relates to a process for analysis of roller bearings (15) which have been installed in machines, by means of a sensor (10) a signal being recorded which is produced by the rolling motion, and the signal amplitude is evaluated in order to determine the presence and optionally the depth of the damage in the roller bearing running surface (56). In doing so a dynamic model of the roller bearing in the machine is considered, in which at least the bilateral contact stiffnesses (4, 6) of the rolling elements are considered in order to determine the transfer function between the force caused by the damage and the corresponding sensor signal which is then taken into account in the signal amplitude evaluation. The invention furthermore relates to a corresponding analysis device.

Abstract: A device for aligning two machine shafts which are coupled to one another has:

Abstract: An adapter for a precision inspection instrument used for measurement of rollers or rolls in the paper, steel, film industry, without contacting the rollers or rolls. The adapter employs a high pressure fluid, such as compressed air, which emerges through a plurality of nozzles to form an air cushion for supporting the adapter nears the roller. Additionally, the adapter can be provided with adjustable, specifically defined surfaces having nozzles for forming the air cushion on rollers of various dimensions.

Abstract: A process and apparatus for determining the damage on at least one cyclically moving machine component, whereby a signal caused by the motion of the component is picked up by a sensor. At least one portion of the signal with an adjustable period is separated, and the remaining or separated part of the signal is subjected to damage analysis. In addition, a process and apparatus for separating periodic signal portions from a signal is provided, whereby the signal is supplied as an input signal to a rotating ring storage which is formed by cyclically arranged storage elements which are supplied in succession with the input signal currently at the input of the ring storage. A rotation frequency is synchronized with the period duration of the desired signal portions, and the desired signal portions are obtained as the output signal of the ring storage.

Abstract: A method and apparatus for measuring the mutual orientation of an optionally oriented hollow cylinder and a cut end of a body containing the hollow cylinder by employing a high-precision laser gyroscope. In using this method, the orientation measurements can be obtained in a more economical and time efficient manner than those employed using conventional methods.

Abstract: A device for precision measurement of shafts, spindles, or the like calls for two surfaces which are combined with one another, of which one is partially reflecting and the other is roughly fully reflecting. These surfaces reflect an incident light beam independently of one another onto a single optoelectronic target. The target can be read out two-dimensionally and is pixel-oriented. From only a single measurement position, the azimuth and elevation, and the parallel offset between the incident light beam and a center of the reflecting surfaces can be determined.