LASER AND CCD CAMERA SYSTEM FOR MAGNET ALIGNMENT ON GIRDER IN THE SPring-8 STORAGE RING
نویسندگان
چکیده
A new surveying system using a laser and a CCD camera with image processing has been developed to align magnets on a 5 m-long girder to an accuracy of 10 l.trn. A spacial filter with a pinhole and a collimator are used to make a parallel gaussian beam. In order to stabilize the laser axis, the heat capacity of the laser was made larger to reduce the influence of the fluctuation in the room temperature. The partitions, which are used to clean the inner side of the tunnel, are useful for stopping the air current. The glass in front of CCD device is covered with the non reflective coating to prevent from interference striped patterns. The accuracy of this surveying system is within 10 pm. This value satisfies the required accuracy. Now the SPring-8 alignment of the storage ring magnets is performed with this system.
منابع مشابه
Magnet Rearrangement for 30 m Long Straight Sections in the SPring-8 Storage Ring
In the summer of 2000, we constructed the four 30-m long straight sections in the SPring-8 Storage Ring. Magnets were rearranged to make long free spaces. New girders were designed, manufactured and installed to the SPring-8 storage ring tunnel. Magnets placed on the girders were aligned on a straight line using CCD camera and laser. A long undulator was installed in one long straight section a...
متن کاملALIGNMENT METHOD for 50m DISTANCE USING LASER and CCD CAMERA
SPring8 storage ring is 8GeV synchrotron radiation source, which circumference is 1436m with 48 double-bend achromatic cells. This ring has also four long straight sections. Before modification three girders were put as other section. A long undulator (27m) was installed at one straight section and three free spaces were made at other sections in the summer of 2000 as shown in Fig.1. This modif...
متن کاملMagnetic Axis and Geometric Measurement for the Lhc Cryomagnet
The LHC cryomagnets are made with several types of magnets which all need to be aligned. Both magnetic and geometric axis need to be well known before the installation in the LHC tunnel. These measurements require integrated controls for optical, magnetic and geometric measurements systems. The measurement sequence as well as the analysis should be adapted to each type of magnet. To perform the...
متن کاملDistance Measurement Using Single Non-metric CCD Camera
A novel measuring system based on a single non-metric CCD camera and a laser projector is proposed in this paper for measuring distance of a remote object. The setup of the measuring system is relatively easy, in which the laser pointer is positioned beside the CCD camera so that laser beam projected is parallel to the optical axis of the camera in a fixed distance. Based on a fast and effectiv...
متن کاملThree Dimensional Surface Temperature Measurement System
Fig.1 Measurement system In this paper, the three-dimensional surface shape measurement system with the temperature information is introduced. The measurement is established using a three-dimensional surface measurement system and a thermography. The measurement system is composed of CCD camera, a laser and thermography. The laser is projected to the object and the laser streak image appeared o...
متن کامل