A BSTRACT 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. BUDKER INSTITUTE OF NUCLEAR PHYSICS NOVOSIBIRSK, RUSSIA E. Kazantseva, B. Skarbo R EQUIREMENTS FOR MAGNETIC MEASUREMENT FACILITY INVOLVED IN MASS PRODUCTION Sufficient quality of measurements Little time required for one measurement Simple user interface Measured field The magnetic flux thru the coil The voltage we get Resulting integral of the EMF measured by electronics Some theory M ECHANICAL C ONSTRUCTION RCN 228 Girder Lamination Coil Support Standing Q UADRUPOLE 9804 ON STEND M EASURING S YSTEM servomotor angle meas. unit M EASUREMENT COIL Length of the measuring part800 mm Number of cols8 (400mm each) Number of turns in coil60 blue white yellow black white yellow black S OURCES OF N OISE IN H ARMONICS 1. Vibrations dipole component 2. PSU quadrupole component 3. External sources statistic noise 4. Self VsDC3 all harmonics 1 and 2 are compensated via rotating coil compensation 3 is reduced digitally S TATISTIC NOISE IN HARMONICS T YPICAL MEASUREMENT WINDOW U SUAL RESULTS FOR FIRST MEASUREMENTS R ESULTS FOR FINAL TUNING OF P OWER SUPPLY Current stability -long (8 hours) 5mA Max. output current300A Max. output voltage24V Max. output power6000kW P OWER SUPPLY WINDOW FOR FULL WORKING DAY C URRENT DIAGRAM FOR MAGNET CYCLE AND MEASUREMENT CYCLE S TANDARD BOLTS RETIGHTENING BEFORE MEASUREMENTS T ECHNOLOGICAL DATA FOR ANGLE MEASUREMENT S TATISTIC OF MAGNETIC AXIS POSITION FOR 30 MEASUREMENTS Standard Deviation: D(x) = 6,26292E-01 mkmD(y) = 7,13E-01 mkm C ONCLUSION 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