Acoustic flowmeter calibration method

Details Acoustic flowmeter calibration method Acoustic flowmeter calibration method

2006-10-24

2006-10-24

Williams, Hezron (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

C073S001810, C073S001880, C073S861180, C073S861280, C702S097000, C702S100000, C702S103000, C702S104000

Reexamination Certificate

active

07124621

ABSTRACT:
An acoustic flowmeter calibration method and sampling system address a variation in acoustic transducer delay time with increasing temperature. In one aspect, calibration of the path length between the sending and receiving transducers and calibration of the transducer delay time over a wide temperature range are optimized. In another aspect, the flowmeter output is temperature compensated based on the exhaust flowmeter gas temperature. These two aspects may be embodied in an ultrasonic flowmeter for exhaust gas measurement individually or in combination in accordance with the invention.

REFERENCES:
patent: 3935735 (1976-02-01), Lee
patent: 4297607 (1981-10-01), Lynnworth et al.
patent: 4336719 (1982-06-01), Lynnworth
patent: 4397193 (1983-08-01), Ryan et al.
patent: 4743870 (1988-05-01), Jen et al.
patent: 5159838 (1992-11-01), Lynnworth
patent: 5217018 (1993-06-01), Dias
patent: 5241287 (1993-08-01), Jen
patent: 5280728 (1994-01-01), Sato et al.
patent: 5438999 (1995-08-01), Kikuchi et al.
patent: 5440936 (1995-08-01), Spani et al.
patent: 5753824 (1998-05-01), Fletcher-Haynes
patent: 5756360 (1998-05-01), Harvey et al.
patent: 5831175 (1998-11-01), Fletcher-Haynes
patent: 5983730 (1999-11-01), Freund et al.
patent: 6062091 (2000-05-01), Baumoel
patent: 6067861 (2000-05-01), Shekarriz et al.
patent: 6307302 (2001-10-01), Toda
patent: 6343511 (2002-02-01), Lynnworth et al.
patent: 6487916 (2002-12-01), Gomm et al.
patent: 6494105 (2002-12-01), Gallagher
patent: 6816808 (2004-11-01), Freund et al.
patent: 6907361 (2005-06-01), Molenaar et al.
patent: 6923073 (2005-08-01), van Klooster et al.
patent: 6950768 (2005-09-01), Freund et al.
Freund, Jr. et al., “A Powerful New Diagnostic Tool for Transit Time Ultrasonic Meters”, North Sea Flow Measurement Workshop, Oct. 26-29, 2004, pp. 1-11.

Affiliated with

Also associated with

Rating

Acoustic flowmeter calibration method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic flowmeter calibration method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic flowmeter calibration method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3644002