Modular Coil Metrology Data for Current Center Shift Calculation

Romer Arm Measurements are taken at each turn. Bundle dimensions are averages of all turns: –4 turns for Base and Top –11 turns for Septum and Sides (A & B Coils, 10 for C’s) Lateral (dx) is calculated as the average of the four sets of measurements: –A Sides –A Septum –B Sides –B Septum Radial (dy) is calculated as the average of the four sets of measurements: –A Base –A Top –B Base –B Top Caution: All Romer Arm Data except A Sides is positive with respect to local x,y. Side A has surface normal in –x direction so measurements must be negated before averaging. Side A Side B Current Center A Base B Base B Septum A Septum A Top A Sides B Top B Sides x y

A Clamp Numbering

B Clamp Numbering

C Clamp Numbering