Abstract: An optical element with improved deflection of a laser light beam calls for combination of a pentaprism with one or more glass blocks or an afocal optical system. A rotational angle-dependent parallel offset of emerging beams is eliminated for the most part.

Abstract: Device for determining the straightness of hollow cylindrical surfaces and partial surfaces thereof, and the three-dimensional orientation of several hollow cylindrical surfaces or partial surfaces with reference to at least one of axial parallel offset and angular offset relative to one another. A transmitting/receiving device and a reflector/receiving device are provided which are swingable essentially without play over a respective hollow cylindrical surface or partial hollow cylindrical surface. The transmitting/receiving device has at least one transmitter for emitting light beams and at least one receiver for receiving and for measuring an incidence position of the light beams. The reflector/receiving device has at least one partially-reflective optical element for partial reflection of light beams and at least one receiver for receiving and for measuring an incidence position of a portion of the light beams.

Abstract: The shock isolation system for an inertial sensor arrangement, on the one hand, causes an advantageous moment of inertia by the special arrangement of the individual sensors, especially of the gyroscope used. On the other hand, an advantageous long interval of the required shock-absorbing components (“shock mounts”) is provided by the use of several tubular shells. A measurement device with this inertial sensor arrangement thus achieves improved accuracy and reliability.

Abstract: A photodetector arrangement has a semiconductor body formed of a substrate, a first layer at a first main surface of the semiconductor body, and a second layer at a second main surface of the semiconductor body. The second main surface is remote from the first main surface. A first and a second measurement terminal are arranged at the second main surface on the edge of the second layer in regions remote from one another and are formed for the electrical contact-connection of the second layer from outside the semiconductor body. A first and a second transistor couple the second layer to the first and respectively the second measurement terminal.

Abstract: A photodetector arrangement has a semiconductor body with a substrate, and first, second and third layers. The first layer is located at the first main surface of the semiconductor body which is suited for reception of incident photon radiation which is to be detected. The second layer is located at the second main surface of the semiconductor body which is at a distance to the first main surface. The third layer is located between the substrate and the second layer.

Abstract: At least two identical combined transmitter/receivers are used to perform a measurement task to be carried out. Each combined transmitter/receiver utilizes a combined exit/entrance window. The identical configuration of the transmitter/receiver yields major cost advantages in the production of these articles.

Abstract: Vibration sensors or measurement detectors having connecting cables (40) for electrical supply voltages and/or signal voltages are provided with a clamping or winding space (42) on the bottom of the sensor housing (10). One or more turns of the respective connecting cable is deposited with in the clamping or winding space when the sensors are screwed tightly onto a machine or the like. The connecting cable can have any optional azimuth angle relative to the sensor coordinates and is well protected against external, damaging mechanical effects.

Abstract: A device for determining the straightness of shafts or shaft tunnels in segments is used preferably in larger water craft, but can also be used for measurement of oil pipelines. A first and a second adapter which each contain an optical transmitting and receiving device. The receiving devices are able to detect the location and direction of incidence of the light beams or laser beams incident on them. In this way, it is possible to quantitatively determine the parallel and angular offset of shafts, shaft tunnels or pipelines in segments by one single measurement process at a time. The adapters preferably have an identical form and work in the same way.

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: Device for determining the straightness of hollow cylindrical surfaces and partial surfaces thereof, and the three-dimensional orientation of several hollow cylindrical surfaces or partial surfaces with reference to at least one of axial parallel offset and angular offset relative to one another. A transmitting/receiving device and a reflector/receiving device are provided which are swingable essentially without play over a respective hollow cylindrical surface or partial hollow cylindrical surface. The transmitting/receiving device has at least one transmitter for emitting light beams and at least one receiver for receiving and for measuring an incidence position of the light beams. The reflector/receiving device has at least one partially-reflective optical element for partial reflection of light beams and at least one receiver for receiving and for measuring an incidence position of a portion of the light beams.

Abstract: A device for determining the straightness of shafts or shaft tunnels in segments is used preferably in larger water craft, but can also be used for measurement of oil pipelines. A first and a second adapter which each contain an optical transmitting and receiving device. The receiving devices are able to detect the location and direction of incidence of the light beams or laser beams incident on them. In this way, it is possible to quantitatively determine the parallel and angular offset of shafts, shaft tunnels or pipelines in segments by one single measurement process at a time. The adapters preferably have an identical form and work in the same way.

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: 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 invention relates to an 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 means (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 means (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 means (12) having a second (LI) 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: At least two identical combined transmitter/receivers are used to perform a measurement task to be carried out. Each combined transmitter/receiver utilizes a combined exit/entrance window. The identical configuration of the transmitter/receiver yields major cost advantages in the production of these articles.

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: 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.