Table Magnetic Length

This table stores the results of the warm magnetic measurements for the magnetic length performed by companies

Table WMF_LENGTH
Fields Type Nullable Constraints Comments
Magnet_Name string No like 'HCMB__A001-0%' [iA,1] Name of the magnet
Magnet_Nu number No   Number of the manufacturer on 1 digit + sequential number of the magnet on 3 digits.
Stage string No 'collared coil' or 'cold mass' State of the magnet
Measure_Id string No   [PKey,1] date of test + "_" + serial number of the magnet (on 4 digits)
Final_Measure string No 'T' or 'F' [PKey,2] [iA,3] Indicates if it is the final measurement (True or False)
Aperture integer No 1 or 2 [PKey,3]  [iA,2] Aperture number
Magnetic_Length [m] real No 10<=?<=20  
Int_Transfer_Function [T.m/A] real No  0.006<=?<=0.012  Integrated transfer function
Coil_Waviness [m] real No 5E-6<=?<=5E-4  


For information please send e-email to Ezio Todesco or Jerome Beauquis.

Remark : [PKey,n] at the beginning of the Comments column means that allthose fields define a primary key (This set of columns identifies in an unique way each row of this table) and also a search key (a b-tree index) with order n. [iX,n] at the beginning of the Comments column means that all those fields define a (b-tree) index with order n.