CPC Subgroup
G01F 1/696 Circuits therefor, e.g. constant-current flow meters
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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) > by using thermal effects > Circuits therefor, e.g. constant-current flow meters
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- G01F 1/698 Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters