DE69423065D1 - Verbesserung an oder in Bezug auf Gasmesser - Google Patents
Verbesserung an oder in Bezug auf GasmesserInfo
- Publication number
- DE69423065D1 DE69423065D1 DE69423065T DE69423065T DE69423065D1 DE 69423065 D1 DE69423065 D1 DE 69423065D1 DE 69423065 T DE69423065 T DE 69423065T DE 69423065 T DE69423065 T DE 69423065T DE 69423065 D1 DE69423065 D1 DE 69423065D1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- flight
- dependence
- relation
- improvement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9320042A GB2282447B (en) | 1993-09-29 | 1993-09-29 | Improvements in or relating to gas meters |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69423065D1 true DE69423065D1 (de) | 2000-03-30 |
DE69423065T2 DE69423065T2 (de) | 2000-06-08 |
Family
ID=10742679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69423065T Expired - Lifetime DE69423065T2 (de) | 1993-09-29 | 1994-09-13 | Verbesserung an oder in Bezug auf Gasmesser |
Country Status (5)
Country | Link |
---|---|
US (1) | US5644090A (de) |
EP (1) | EP0645609B1 (de) |
AT (1) | ATE189926T1 (de) |
DE (1) | DE69423065T2 (de) |
GB (1) | GB2282447B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10170485A (ja) * | 1996-10-08 | 1998-06-26 | Toyota Motor Corp | 超音波式ガソリン特性判別方法および装置 |
US6422093B2 (en) * | 1999-12-10 | 2002-07-23 | Murray Feller | Burst mode ultrasonic flow sensor |
US7058523B2 (en) * | 2002-09-13 | 2006-06-06 | Landis+Gyr, Inc. | Electricity meter having gas consumption correction processing |
DE10254054A1 (de) * | 2002-11-19 | 2004-06-03 | Endress + Hauser Flowtec Ag, Reinach | Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder des Massendurchflusses eines Mediums |
US6854339B2 (en) * | 2002-12-30 | 2005-02-15 | Pti Technologies, Inc. | Single-body dual-chip orthogonal sensing transit-time flow device using a parabolic reflecting surface |
US20040129088A1 (en) * | 2002-12-30 | 2004-07-08 | D.C. Tigwell & Associates | Single-body dual-chip orthogonal sensing transit-time flow device using a parabolic reflecting surface |
US6901812B2 (en) * | 2002-12-30 | 2005-06-07 | Pti Technologies, Inc. | Single-body dual-chip Orthogonal sensing transit-time flow device |
US7317404B2 (en) * | 2004-01-14 | 2008-01-08 | Itron, Inc. | Method and apparatus for collecting and displaying consumption data from a meter reading system |
US7152490B1 (en) | 2005-08-15 | 2006-12-26 | Daniel Measurement And Control, Inc. | Methods for determining transducer delay time and transducer separation in ultrasonic flow meters |
JP5194754B2 (ja) * | 2007-12-10 | 2013-05-08 | パナソニック株式会社 | ガスメータ装置及びこの装置を用いたガス供給システム |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575050A (en) * | 1968-12-04 | 1971-04-13 | Panametrics | Fluid flowmeter |
US3874233A (en) * | 1972-04-12 | 1975-04-01 | Del Mar Eng Lab | Gas volume meter |
US4103551A (en) * | 1977-01-31 | 1978-08-01 | Panametrics, Inc. | Ultrasonic measuring system for differing flow conditions |
JPS58167918A (ja) * | 1982-03-29 | 1983-10-04 | Toshiba Corp | 超音波流速測定装置 |
GB8813640D0 (en) * | 1988-06-09 | 1988-07-13 | Gill M J | Speed measurement device |
US5052230A (en) * | 1988-07-08 | 1991-10-01 | Flowtec Ag | Method and arrangement for flow rate measurement by means of ultrasonic waves |
GB2237639B (en) * | 1989-10-31 | 1994-07-06 | British Gas Plc | Measurement system |
NZ243293A (en) * | 1991-06-25 | 1995-03-28 | Commw Scient Ind Res Org | Fluid flow meter: time of travel of acoustic wave packet through fluid |
GB9119742D0 (en) * | 1991-09-16 | 1991-10-30 | British Gas Plc | Measurement system |
FR2685766B1 (fr) * | 1991-12-30 | 1994-04-08 | Gaz De France | Procede et dispositif pour la mesure de debit gazeux. |
-
1993
- 1993-09-29 GB GB9320042A patent/GB2282447B/en not_active Revoked
-
1994
- 1994-09-13 DE DE69423065T patent/DE69423065T2/de not_active Expired - Lifetime
- 1994-09-13 AT AT94114337T patent/ATE189926T1/de active
- 1994-09-13 EP EP94114337A patent/EP0645609B1/de not_active Expired - Lifetime
- 1994-09-14 US US08/305,868 patent/US5644090A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5644090A (en) | 1997-07-01 |
ATE189926T1 (de) | 2000-03-15 |
GB2282447A (en) | 1995-04-05 |
DE69423065T2 (de) | 2000-06-08 |
EP0645609A1 (de) | 1995-03-29 |
EP0645609B1 (de) | 2000-02-23 |
GB9320042D0 (en) | 1993-11-17 |
GB2282447B (en) | 1997-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LANDIS + GYR LTD., TELFORD, SHROPSHIRE, GB |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: ROESLER, U., DIPL.-PHYS.UNIV., PAT.-ANW., 81241 MUENCHEN |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: HAMMONDS LLP, LONDON, GB |