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DIFF Subgroup
G01K 7/38

the variations of temperature influencing the magnetic permeability

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat > using magnetic elements, e.g. magnets, coils > the variations of temperature influencing the magnetic permeability

CPC:

Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat (giving results other than momentary value of temperature G01K3/00) > using magnetic elements, e.g. magnets, coils (magnetic elements per se H01F) > the variations of temperature influencing the magnetic permeability

No child classifications to compare. This is a leaf node in both IPC and CPC.