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1. (US5987997) Ultrasound flow measurement method

Office : United States of America
Application Number: 08836016 Application Date: 15.09.1997
Publication Number: 5987997 Publication Date: 23.11.1999
Grant Number: 5987997 Grant Date: 23.11.1999
Publication Kind : A
Prior PCT appl.: Application Number:EP96005082 ; Publication Number: Click to see the data
IPC:
G01F 1/66
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66
by measuring frequency, phase shift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
CPC:
G01F 1/668
G01F 1/662
G01F 1/667
G01F 7/00
Applicants: Krohne A.G.
Inventors: Roskam Abram Klaas
van Bekkum Jan Aart
Smychliaev Vladimir
Agents: Cesari and McKenna, LLP
Priority Data: 1001719 22.11.1995 NL
Title: (EN) Ultrasound flow measurement method
Abstract: front page image
(EN)

The invention concerns a method and a device for ultrasound measurement of the flow of flowing media with a measuring tube (1), with at least two pairs of ultrasound transducers arranged on the measuring tube, each forming a measuring path (M1,M2,M3,M4,M5), with a transducer (2) determining the velocities of the medium along the measuring paths (M1,M2,M3,M4,M5) from the signals of the pair of ultrasound transducers and with an adder (3) determining the flow quantity of the medium from the velocities of the medium along the measuring paths (M1,M2,M3,M4,M5). PAL According to the invention, such a method and such a device are designed with a Reynolds' number meter (5) that determines the Reynolds' number constantly and a flow-quantity corrector (6) connected to the adder (3) and the Reynolds' meter (5).


Also published as:
NO19973364EP0804717JP3478833 JPH10512966 JP2002013957 CA2209789
AU1996076931DK0804717WO/1997/019326