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PCE
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DIFF Subgroup
G01K 7/32

using change of resonant frequency of a crystal

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 change of resonant frequency of a crystal

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 change of resonant frequency of a crystal

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