by measuring the time taken to traverse a fixed distance

Introduced: September 1968

Title

Titles differ between systems:

IPC: by measuring the time taken by the fluid to traverse a fixed distance

CPC: by measuring the time taken to traverse a fixed distance

Full Title

Full titles differ between systems:

IPC:

Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft > by measuring the time taken by the fluid to traverse a fixed distance

CPC:

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) > by measuring the time taken to traverse a fixed distance

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01P 5/20 using particles entrained by a fluid stream (G01P5/22 takes precedence) IPC+CPC Available in IPC and CPC
G01P 5/22 using auto-correlation or cross-correlation detection means since 1985 IPC+CPC Available in IPC and CPC