摘要:
The spatial position of rollers or other mutually adjacent articles is measured or examined by indirect transport of a reference direction. To this end, an adaptor is placed on one of the rollers. The adaptor is equipped with a light source which emits a light beam substantially parallel to the axis of rotation of a roller. The light beam is sensed by a movable sensor unit. The latter determines, at the same time, the angle of incidence of the light beam according to two axes, relative to the sensor unit, and the orientation of the sensor unit relative to a reference axis system (laboratory system). A multi-axially operating gyroscope is used for the last-mentioned measurement. A suitably programmed electronic system or computer determines, from the two measured values, the orientation of the adaptor and of the roller with respect to azimuth and elevation in the laboratory system. The measured values which are determined can be utilized for the purpose of making a comparison with the corresponding values of further rollers or articles, so that an apparatus for parallelism measurements which is easy to handle is provided.
摘要:
An alignment device with one or two optoelectronic transmitting and/or receiving units and an evaluation unit. At least one optoelectronic transmitting and/or receiving unit contains an inclinometer. Furthermore, the transmitting and/or receiving unit is connected to a vibration sensor which can be the inclinometer. Both the result of the alignment process and also the result of the vibration measurement are communicated to the user as an easily understandable characteristic on a display of the evaluation unit. For vibration measurement at a non-rotating part of a machine, an accelerometer/inclinometer sensor may be used for measuring acceleration forces resulting from machine vibrations to be measured and for measuring gravity and an electronic evaluation unit determining the orientation of the sensor with regard to gravity from a stationary component of the sensor output and determining sensor orientation from evaluation of non-stationary components of sensor output.
摘要:
A rotating machine element is monitored for displacements using co-rotating sensors for acceleration, rotation or the direction of gravitation. In doing so, the sensor data are received by a, likewise, co-rotating electronic unit. The data can also be stored and further processed in this electronic unit.
摘要:
A compact vibration meter has at least two vibration sensors which sense vibrations at regions of a support element, the detected vibrations being adjusted to the frequency range to be sensed by the respective sensor.
摘要:
An alignment device with one or two optoelectronic transmitting and/or receiving units and an evaluation unit. At least one optoelectronic transmitting and/or receiving unit contains an inclinometer. Furthermore, the transmitting and/or receiving unit is connected to a vibration sensor which can be the inclinometer. Both the result of the alignment process and also the result of the vibration measurement are communicated to the user as an easily understandable characteristic on a display of the evaluation unit. For vibration measurement at a non-rotating part of a machine, an accelerometer/inclinometer sensor may be used for measuring acceleration forces resulting from machine vibrations to be measured and for measuring gravity and an electronic evaluation unit determining the orientation of the sensor with regard to gravity from a stationary component of the sensor output and determining sensor orientation from evaluation of non-stationary components of sensor output.
摘要:
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.
摘要:
An apparatus for detecting and monitoring changes in the position of rotating shafts in which a light ray generally parallel to the shafts is directed to measurement positions (which are offset from each other by about 90.degree. in the circumferential direction of the shafts) to a rectangular prism, which reflects the ray to a ray receiver, which supplies signals, which change with any change in the position of the shafts. In known apparatus for making possible a continuous monitoring of the alignment condition of coaxial shafts, the ray source and the ray receiver are arranged on one shaft and a prism is arranged on the other. The signals of the ray receiver and the power supply thereof require the use of complex and unreliable transmission means between the rotating and stationary parts of the apparatus. According to the invention light rays (S and S'), come from two separate source-receiver pairs (2.sub.1,9.sub.1, and 2.sub.2 and 9.sub.2) each pair having a ray source and a ray receiver which are fixed in a reference system (X,Y and M) in which the shaft or shafts rotate. As a result it is possible to dispense with complex and unreliable transmitting means for the signals from the receivers and for the power supply to the pairs of sources and receivers. The apparatus in accordance with the invention is suited both for the monitoring of the position of a single rotating shaft and also for the continuous monitoring of the alignment condition of coaxial shafts.
摘要:
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°.
摘要:
A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electromagnetic radiation, in particular a laser beam. The device displays a spatially fixed radiation transmitter S and—at the object end—a splitting mirror 22 as well as two position detectors 23 and 25. The splitting mirror branches a partial beam Rp′ off from the reference beam. The reference beam passing rectilinearly through the splitting mirror impinges on the one position detector and the partial beam on the other. The position detectors supply electrical signals, from which the position of the reference axis is ascertainable by means of a computer. The known devices of this species have an appreciable space requirement. This defect is eliminated by a particular structuring of the beam conduction and the additional use of special optical means. Beyond that, the measurement possibilities can be enlarged through additional emission of a second reference beam RS.
摘要:
A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electro-magnetic radiation, in particular a laser beam. The device displays a spatially fixed radiation transmitter S and at the object end a splitting mirror 22 as well as two position detectors 23 and 25. The splitting mirror branches a partial beam Rp′ off from the reference beam. The reference beam passing rectilinearly through the splitting mirror impinges on the one position detector and the partial beam on the other. The position detectors supply electrical signals, from which the position of the reference axis is ascertainable by means of a computer. The known devices of this species have an appreciable space requirement. This defect is eliminated by particular structuring of the beam conduction and the additional use of special optical means. Beyond that, the measurement possibilities can be enlarged through additional emission of a second reference beam Rs.