IPC Main Group
G01F 1/00 Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
Introduced: September 1968
Last revised: January 2022
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
9 direct subcodes
Child Classifications
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- G01F 1/002 wherein the flow is in an open channel
- G01F 1/05 by using mechanical effects
- G01F 1/56 by using electric or magnetic effects
- G01F 1/66 by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F 1/68 by using thermal effects
- G01F 1/704 using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
- G01F 1/72 Devices for measuring pulsing fluid flows
- G01F 1/74 Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
- G01F 1/76 Devices for measuring mass flow of a fluid or a fluent solid material