Method and apparatus to measure flow rate

Details Method and apparatus to measure flow rate Method and apparatus to measure flow rate

2007-10-09

2007-10-09

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring tracer concentration

Reexamination Certificate

active

10257953

ABSTRACT:
A method and apparatus for measuring the flow rate of a single phase fluid, particularly a gas, through a conduit. A pulse of tracer fluid is discharged or injected into a first fluid flowing through a conduit, the concentration of the tracer fluid is measured as a function of time at a downstream from where it is injected, and the flow rate of the first fluid is determined based on the concentration measurements. The concentration of tracer fluid is preferably sampled substantially continuously from when the tracer gas first passes the measuring point until substantially all of the tracer fluid has passed the measuring point and the sampled concentrations integrated. The concentration of tracer fluid is preferably determined by measuring the thermal conductivity of the mixture of the first fluid and tracer fluid which is dependent upon the concentration of the tracer fluid.

REFERENCES:
patent: 3435660 (1969-04-01), Stemberg
patent: 3722276 (1973-03-01), Chandler et al.
patent: 3881351 (1975-05-01), Prachar
patent: 4805450 (1989-02-01), Bennett et al.
patent: 4946555 (1990-08-01), Lee et al.
patent: 5567885 (1996-10-01), Garside
patent: 7047830 (2006-05-01), Bratton et al.
patent: 7051578 (2006-05-01), McCoy et al.
patent: 2005/0034533 (2005-02-01), Wang
patent: 20 44 407 (1972-03-01), None
patent: 0 400 707 (1990-12-01), None
patent: 0472131 (1991-08-01), None
patent: 0 855 578 (1998-07-01), None

Affiliated with

Also associated with

Rating

Method and apparatus to measure flow rate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus to measure flow rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to measure flow rate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3899891