CPC Main Group
G01P 5/00 Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft (application of speed-measuring devices for measuring volume of fluid G01F)
12 direct subcodes
Child Classifications
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- G01P 5/01 by using swirlflowmeter
- G01P 5/02 by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P 5/08 by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect
- G01P 5/10 by measuring thermal variables
- G01P 5/14 by measuring differences of pressure in the fluid
- G01P 5/18 by measuring the time taken to traverse a fixed distance
- G01P 5/24 by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P 5/26 by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave