Measuring the time taken to traverse a fixed distance

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow > using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter > Measuring the time taken to traverse a fixed distance

CPC:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00) > using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter (G01F1/76, G01F25/00 take precedence) > Measuring the time taken to traverse a fixed distance

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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G01F 1/7082 using acoustic detecting arrangements since 2022 IPC+CPC Available in IPC and CPC
G01F 1/7084 using thermal detecting arrangements since 2022 IPC+CPC Available in IPC and CPC
G01F 1/7086 using optical detecting arrangements since 2022 IPC+CPC Available in IPC and CPC
G01F 1/7088 using electrically charged particles as tracers since 2022 IPC+CPC Available in IPC and CPC
G01F 1/712 using auto-correlation or cross-correlation detection means since 1985 IPC+CPC Available in IPC and CPC
G01F 1/716 using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR] since 1985 IPC+CPC Available in IPC and CPC