Method and apparatus for in situ calibration of gas flowmeters

Details Method and apparatus for in situ calibration of gas flowmeters Method and apparatus for in situ calibration of gas flowmeters

1997-03-20

2000-05-02

Larkin, Daniel S.

Measuring and testing

Gas analysis

By vibration

73 3002, 73724, 324663, 324673, G01R 2726

Patent

active

060558466

ABSTRACT:
The focus of this paper is to introduce a novel method for calibrating natural gas flowmeters. This new method can accommodate very large flow rates and it avoids common problems associated with current techniques for meter proving. In this method, the amount of gas accumulated in a vessel of fixed volume is determined by measuring the change in capacitance of the vessel with respect to time. Because the accumulator has a fixed volume the problems inherent with the mechanical motions involved in volumetric provers such as bell provers, piston provers and ball provers are eliminated. Accurate measurements can also be made in larger vessels than would be feasible for gravimetric provers, especially for in situ calibrations. Along with avoiding the fundamental problems associated with current provers, initial studies indicate that accuracies of .+-.0.1% are possible, even for flow rates in large pipelines.

REFERENCES:
patent: 3478589 (1969-11-01), Birken
patent: 3903478 (1975-09-01), Stuart et al.
patent: 5670721 (1997-09-01), Codin et al.

Affiliated with

Also associated with

Rating

Method and apparatus for in situ calibration of gas flowmeters 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 for in situ calibration of gas flowmeters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for in situ calibration of gas flowmeters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1585013