KR20090105979A - 밀도 정보를 이용하여 유량 압력을 측정하기 위한 방법 및 장치 - Google Patents
밀도 정보를 이용하여 유량 압력을 측정하기 위한 방법 및 장치 Download PDFInfo
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- KR20090105979A KR20090105979A KR1020097019345A KR20097019345A KR20090105979A KR 20090105979 A KR20090105979 A KR 20090105979A KR 1020097019345 A KR1020097019345 A KR 1020097019345A KR 20097019345 A KR20097019345 A KR 20097019345A KR 20090105979 A KR20090105979 A KR 20090105979A
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- 238000005452 bending Methods 0.000 description 8
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- 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
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- 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
- G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
- G01F1/849—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having straight measuring conduits
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- 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
- G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
- Flow Control (AREA)
Abstract
Description
Claims (9)
- 코리올리 유량계를 통해 유동하는 기체 물질의 밀도를 측정하는 단계(602); 및상기 측정된 밀도로부터 상기 유동하는 기체 물질의 압력을 계산하는 단계를 포함하는 방법으로서,(a) 방정식 에서 압축률(z)의 값을 1로 설정하고 압력(P) 값을 계산하는 단계(604)(여기서 T는 온도, M은 상기 코리올리 유량계를 유동하는 기체 물질의 몰질량(molar weight), ρ는 밀도, 및 R은 상수);(b) 상기 압축률(z)에 대한 더욱 정확한 값을 계산하기 위해 상기 계산된 압력(P) 값을 이용하는 단계(606);(c) 상기 압력(P) 값을 재계산하기 위해 상기 압축률(z)에 대한 새로운 더욱 정확한 값을 이용하는 단계(608); 및(d) 새로운 압력 평가값과 마지막 압력 평가값의 차이가 예정된 한계 내로 수렴할 때까지 단계 (b) 및 (c)를 반복하는 단계를 특징으로 하는, 방법.
- 제 1 항에 있어서,상기 압축률이 미국 가스 협회(AGA) 리포트 넘버 8의 정보를 이용하여 계산되는, 방법.
- 제 1 항에 있어서,사용자는 상기 유량계를 통해 유동하는 기체 물질의 몰질량(M)을 입력하게 되는, 방법.
- 제 1 항에 있어서,상기 사용자는 상기 기체의 유형을 입력하게 되고, 상기 코리올리 유량계는 상기 기체의 유형으로부터 상기 유량계를 유동하는 기체 물질의 몰질량(M)을 계산하는, 방법.
- 제 1 항의 방법을 실행하도록 배치된 코리올리 유량계로서,유동 기체 물질을 함유하도록 배치된 도관(502);상기 도관을 진동시키도록 배치된 하나 이상의 구동기(504);상기 진동하는 도관의 움직임을 측정하기 위해 배치된 제 1 및 제 2 센서(506);상기 진동하는 도관의 움직임에 기초하여 상기 유동 기체 물질의 밀도를 측정하도록 배치되고, (a)-(d) 단계를 실행함에 의해 상기 측정된 밀도에 기초하여 상기 유동 기체 물질의 압력을 계산하도록 배치된 프로세서(508)를 포함하는,코리올리 유량계.
- 제 1 항에 있어서,상기 측정된 유량 압력을 외부 기구와 소통시키는 단계를 추가로 포함하는, 방법.
- (a) 낮은 압력점에서 유동 기체 물질에 대한 코리올리 유량계의 밀도 대 압력 관계를 조정하는(calibrating) 단계;(b) 높은 압력점에서 상기 유동 기체 물질에 대한 상기 코리올리 유량계의 밀도 대 압력 관계를 조정하는 단계;(c) 상기 유동 기체 물질에 대한 두 조정된 관계들을 저장하는 단계; 및(d) 두 개의 저장된 조정 관계 및 측정된 현재 밀도에 기초하여 상기 유동 기체 물질에 대한 현재 압력을 계산하는 단계를 포함하는 방법으로서,(e) 높은 그리고 낮은 압력점들에 대해 압축률(Z)을 계산하는 단계(902);(f) 평균 몰질량(M)을 계산하는 단계로서, 평균 몰질량(M)은 높은 압력 조정점의 몰질량과 낮은 압력 조정점의 몰질량의 평균을 포함하는, 평균 몰질량(M)을 계산하는 단계;(g) 방정식 을 이용하여 "마지막 압력 평가값(P)"을 계산하는 단계(여기서 T는 온도, M은 상기 코리올리 유량계를 유동하는 유동 기체 물질의 평균 몰질량, ρ는 밀도, 및 R은 상수);(h) 상기 "마지막 압력 평가값(P)"을 이용하여 새로운 압축률(Z)을 계산하는 단계;(i) "새로운 압력 평가값"을 계산하는 단계(910);(j) 상기 "새로운 압력 평가값"과 "마지막 압력 평가값(P)"의 차이가 예정된 한계 내로 수렴할 때까지 (g)-(i) 단계를 반복하는 단계를 특징으로 하는, 방법.
- 제 7 항의 방법을 실행하도록 배치된 코리올리 유량계로서,상기 유동 기체 물질을 함유하도록 배치된 도관(502);상기 도관을 진동시키도록 배치된 하나 이상의 구동기(504);상기 진동하는 도관의 움직임을 측정하도록 배치된 제 1 및 제 2 센서(506); 및상기 진동하는 도관의 움직임에 기초하여 상기 유동 기체 물질의 밀도를 측정하도록 배치되고, (a)-(j)의 단계를 실행함에 의해 상기 측정된 밀도에 기초하여 상기 유동 기체 물질의 압력을 계산하도록 배치된, 프로세서(508)를 포함하는,코리올리 유량계.
- 제 8 항에 있어서,서로 다른 두 압력점에서 상기 유동 기체 물질에 대한 압력 대 밀도 관계를 함유하는 저장 구역을 포함하고,상기 유동 기체 물질의 압력이 상기 두 압력점에서의 압력 대 밀도 관계 및 상기 유동 기체 물질의 밀도를 이용하여 계산되는,코리올리 유량계.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2004/039960 WO2006059967A1 (en) | 2004-11-30 | 2004-11-30 | Method and apparatus for determining flow pressure using density information |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020077015031A Division KR20070074673A (ko) | 2007-06-29 | 2004-11-30 | 밀도 정보를 이용하여 유량 압력을 측정하기 위한 방법 및장치 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20090105979A true KR20090105979A (ko) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020097019345A Ceased KR20090105979A (ko) | 2004-11-30 | 2004-11-30 | 밀도 정보를 이용하여 유량 압력을 측정하기 위한 방법 및 장치 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US7597008B2 (ko) |
| EP (1) | EP1817554B1 (ko) |
| JP (1) | JP4673376B2 (ko) |
| KR (1) | KR20090105979A (ko) |
| CN (1) | CN101069069B (ko) |
| AR (1) | AR052251A1 (ko) |
| AT (1) | ATE545848T1 (ko) |
| AU (1) | AU2004325253B2 (ko) |
| BR (1) | BRPI0419215A (ko) |
| CA (1) | CA2587175C (ko) |
| DK (1) | DK1817554T3 (ko) |
| MX (1) | MX2007006326A (ko) |
| PL (1) | PL1817554T3 (ko) |
| WO (1) | WO2006059967A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101651800B1 (ko) * | 2016-01-19 | 2016-08-29 | (주)리가스 | 비접촉식 기체 압력측정기 |
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| DE102009028006A1 (de) | 2009-07-24 | 2011-01-27 | Endress + Hauser Flowtec Ag | Meßwandler vom Vibrationstyp sowie Meßgerät mit einem solchen Meßwandler |
| WO2011068500A1 (en) | 2009-12-01 | 2011-06-09 | Micro Motion, Inc. | Vibratory flowmeter friction compensation |
| EP2519804B1 (de) | 2009-12-31 | 2019-08-28 | Endress+Hauser Flowtec AG | Mess-system mit einem messwandler vom vibrationstyp |
| DE102010000761A1 (de) | 2010-01-11 | 2011-07-28 | Endress + Hauser Flowtec Ag | Meßsystem mit einem Meßwandler vom Vibrationstyp |
| DE102010000760B4 (de) | 2010-01-11 | 2021-12-23 | Endress + Hauser Flowtec Ag | Meßsystem mit einem Meßwandler vom Vibrationstyp zum Messen eines statischen Drucks in einem strömenden Medium |
| CA2785919C (en) | 2009-12-31 | 2016-05-24 | Endress+Hauser Flowtec Ag | Measuring system having a measuring transducer of vibration-type |
| CN102686985B (zh) | 2009-12-31 | 2015-04-01 | 恩德斯+豪斯流量技术股份有限公司 | 具有振动型测量转换器的测量系统 |
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| WO2017135954A1 (en) * | 2016-02-04 | 2017-08-10 | Micro Motion, Inc. | Pressure compensation for a vibrating flowmeter and related method |
| CN118533274A (zh) * | 2016-10-04 | 2024-08-23 | 高准公司 | 流量计校准方法及相关设备 |
| KR102529837B1 (ko) * | 2018-04-02 | 2023-05-08 | 마이크로 모우션, 인코포레이티드 | 알려진 밀도를 사용하여 질량 유동을 보상하는 방법 |
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| US6865957B1 (en) * | 2002-04-17 | 2005-03-15 | Nathaniel Hughes | Adaptable fluid mass flow meter device |
| US7134320B2 (en) * | 2003-07-15 | 2006-11-14 | Cidra Corporation | Apparatus and method for providing a density measurement augmented for entrained gas |
| US7150201B2 (en) * | 2004-12-15 | 2006-12-19 | Celerity, Inc. | System and method for measuring flow |
-
2004
- 2004-11-30 CA CA2587175A patent/CA2587175C/en not_active Expired - Lifetime
- 2004-11-30 CN CN2004800445090A patent/CN101069069B/zh not_active Expired - Lifetime
- 2004-11-30 DK DK04812482.0T patent/DK1817554T3/da active
- 2004-11-30 AU AU2004325253A patent/AU2004325253B2/en not_active Expired
- 2004-11-30 EP EP04812482A patent/EP1817554B1/en not_active Expired - Lifetime
- 2004-11-30 AT AT04812482T patent/ATE545848T1/de active
- 2004-11-30 US US11/720,262 patent/US7597008B2/en not_active Expired - Lifetime
- 2004-11-30 KR KR1020097019345A patent/KR20090105979A/ko not_active Ceased
- 2004-11-30 BR BRPI0419215-0A patent/BRPI0419215A/pt active IP Right Grant
- 2004-11-30 MX MX2007006326A patent/MX2007006326A/es active IP Right Grant
- 2004-11-30 JP JP2007544318A patent/JP4673376B2/ja not_active Expired - Fee Related
- 2004-11-30 PL PL04812482T patent/PL1817554T3/pl unknown
- 2004-11-30 WO PCT/US2004/039960 patent/WO2006059967A1/en not_active Ceased
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2005
- 2005-11-28 AR ARP050104961A patent/AR052251A1/es active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101651800B1 (ko) * | 2016-01-19 | 2016-08-29 | (주)리가스 | 비접촉식 기체 압력측정기 |
Also Published As
| Publication number | Publication date |
|---|---|
| PL1817554T3 (pl) | 2012-07-31 |
| BRPI0419215A (pt) | 2007-12-18 |
| AU2004325253B2 (en) | 2010-07-22 |
| US20080034893A1 (en) | 2008-02-14 |
| CA2587175C (en) | 2013-02-26 |
| AR052251A1 (es) | 2007-03-07 |
| EP1817554A1 (en) | 2007-08-15 |
| AU2004325253A1 (en) | 2006-06-08 |
| WO2006059967A1 (en) | 2006-06-08 |
| HK1114665A1 (zh) | 2008-11-07 |
| EP1817554B1 (en) | 2012-02-15 |
| ATE545848T1 (de) | 2012-03-15 |
| CA2587175A1 (en) | 2006-06-08 |
| CN101069069A (zh) | 2007-11-07 |
| CN101069069B (zh) | 2010-04-14 |
| JP4673376B2 (ja) | 2011-04-20 |
| DK1817554T3 (da) | 2012-04-02 |
| JP2008522186A (ja) | 2008-06-26 |
| US7597008B2 (en) | 2009-10-06 |
| MX2007006326A (es) | 2007-07-09 |
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