Measuring direction or magnitude of magnetic fields or magnetic flux (G01R33/20 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Measuring direction or magnitude of magnetic fields or magnetic flux

CPC: Measuring direction or magnitude of magnetic fields or magnetic flux (G01R33/20 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Arrangements or instruments for measuring magnetic variables > Measuring direction or magnitude of magnetic fields or magnetic flux

CPC:

Arrangements or instruments for measuring magnetic variables > Measuring direction or magnitude of magnetic fields or magnetic flux (G01R33/20 takes precedence)

Of 11 combined children, 9 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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G01R 33/0206 CPC only CPC only
G01R 33/0213 CPC only CPC only
G01R 33/022 Measuring gradient since 1980 IPC+CPC Available in IPC and CPC
G01R 33/025 Compensating stray fields since 1980 IPC+CPC Available in IPC and CPC
G01R 33/028 Electrodynamic magnetometers since 1980 +2 CPC IPC+CPC Available in IPC and CPC
G01R 33/032 using magneto-optic devices, e.g. Faraday since 1980 +3 CPC IPC+CPC Available in IPC and CPC
G01R 33/035 using superconductive devices since 1980 +2 CPC IPC+CPC Available in IPC and CPC
G01R 33/038 using permanent magnets, e.g. balances, torsion devices since 1980 +1 CPC IPC+CPC Available in IPC and CPC
G01R 33/04 using the flux-gate principle +1 CPC IPC+CPC Available in IPC and CPC
G01R 33/06 using galvano-magnetic devices +2 CPC IPC+CPC Available in IPC and CPC
G01R 33/10 Plotting field distribution IPC+CPC Available in IPC and CPC