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Abstract

Abstract. Magnetic Measurement Facility Erika Kazantseva (Budker Institute of Nuclear Physics, Russia)

joseph-rosario
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Abstract

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  1. Abstract Magnetic Measurement Facility Erika Kazantseva (Budker Institute of Nuclear Physics, Russia) In this presentation main characteristics and work principle of magnetic measurement facility are described. The facility was designed and manufactured in BINP for NSLS II quadrupole magnets and has such features like rapidness and simplicity of measurements, and appropriate accuracy. These properties of the facility allow use it for magnetic measurements of high quality magnets in mass production.

  2. BUDKER INSTITUTE OF NUCLEAR PHYSICSNOVOSIBIRSK, RUSSIA Magnetic Measurement Facility E. Kazantseva, B. Skarbo

  3. Requirements for magnetic measurement facility involved in mass production • Sufficient quality of measurements • Little time required for one measurement • Simple user interface

  4. Some theory Measured field The magnetic flux thru the coil The voltage we get Resulting integral of the EMF measured by electronics

  5. Coil Support Support Lamination • Lamination Standing Girder Mechanical Construction RCN 228

  6. Quadrupole 9804 on stend

  7. Measuring System servomotor angle meas. unit

  8. Measurement coil blue blue white white yellow yellow black black

  9. Sources of Noise in Harmonics • Vibrations – dipole component • PSU – quadrupole component • External sources – statistic noise • Self VsDC3 – all harmonics • 1 and 2 are compensated via rotating coil compensation • 3 is reduced digitally

  10. Statistic noise in harmonics

  11. Typical measurement window

  12. Usual results for first measurements

  13. Usual results for first measurements

  14. Results for final tuning of 9807-0030

  15. Power supply

  16. Power supply window for full working day

  17. Current diagram for magnet cycle and measurement cycle

  18. Standard bolts retightening before measurements

  19. Technological data for angle measurement

  20. Statistic of magnetic axis position for 30 measurements Standard Deviation: D(x) = 6,26292E-01 mkm D(y) = 7,13E-01 mkm

  21. Conclusion • Advantages of magnetic measurement facility designed in BINP for NSLS II lenses production: • Rapidness of measurements • More than acceptable quality of measurements • Simple user interface • Results are accessible right after measurement • It still works and works good

  22. The End

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