TW200613700A - Method and system for flow measurement and validation of a mass flow controller - Google Patents
Method and system for flow measurement and validation of a mass flow controllerInfo
- Publication number
- TW200613700A TW200613700A TW094123260A TW94123260A TW200613700A TW 200613700 A TW200613700 A TW 200613700A TW 094123260 A TW094123260 A TW 094123260A TW 94123260 A TW94123260 A TW 94123260A TW 200613700 A TW200613700 A TW 200613700A
- Authority
- TW
- Taiwan
- Prior art keywords
- flow
- validation
- mass flow
- flow controller
- mass
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- 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
-
- 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
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
- Flow Control (AREA)
Abstract
Systems and methods for flow verification and validation of mass flow controllers are disclosed. A mass flow controller may be commanded to a specified flow and flow measurement commenced. During an interval, gas is accumulated in a first volume and measurements taken within this volume. The various measurements taken during the interval may then be used to calculate the flow rate. The flow rate, in turn, may be used to determine the accuracy of the mass flow controller relative to a setpoint.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/887,591 US7412986B2 (en) | 2004-07-09 | 2004-07-09 | Method and system for flow measurement and validation of a mass flow controller |
US10/946,031 US7424895B2 (en) | 2004-07-09 | 2004-09-21 | Method and system for flow measurement and validation of a mass flow controller |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200613700A true TW200613700A (en) | 2006-05-01 |
TWI278606B TWI278606B (en) | 2007-04-11 |
Family
ID=35839722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094123260A TWI278606B (en) | 2004-07-09 | 2005-07-08 | Method and system for flow measurement and validation of a mass flow controller |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1797489A4 (en) |
JP (1) | JP2008506116A (en) |
TW (1) | TWI278606B (en) |
WO (1) | WO2006017116A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI416619B (en) * | 2006-11-17 | 2013-11-21 | Lam Res Corp | Methods for performing actual flow verification |
TWI463287B (en) * | 2007-12-27 | 2014-12-01 | Horiba Stec Co | Flow rate ratio control device |
TWI561948B (en) * | 2012-09-25 | 2016-12-11 | Mks Instr Inc | Method and apparatus for self verification of pressured based mass flow controllers |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7474968B2 (en) * | 2005-03-25 | 2009-01-06 | Mks Instruments, Inc. | Critical flow based mass flow verifier |
US7757554B2 (en) | 2005-03-25 | 2010-07-20 | Mks Instruments, Inc. | High accuracy mass flow verifier with multiple inlets |
US7891228B2 (en) * | 2008-11-18 | 2011-02-22 | Mks Instruments, Inc. | Dual-mode mass flow verification and mass flow delivery system and method |
JP5442413B2 (en) * | 2009-12-03 | 2014-03-12 | ルネサスエレクトロニクス株式会社 | Semiconductor manufacturing apparatus and flow rate control apparatus |
GB201108854D0 (en) * | 2011-05-26 | 2011-07-06 | Spp Process Technology Systems Uk Ltd | Mass flow controller monitoring |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3363461A (en) * | 1965-05-26 | 1968-01-16 | Peerless Paint & Varnish Corp | Method for measuring flow |
US4146051A (en) * | 1976-01-10 | 1979-03-27 | Lucas Industries Limited | Fluid flow control system |
EP0547617B1 (en) * | 1991-12-18 | 1996-07-10 | Pierre Delajoud | Mass flow meter and method |
US5684245A (en) * | 1995-11-17 | 1997-11-04 | Mks Instruments, Inc. | Apparatus for mass flow measurement of a gas |
US6119710A (en) * | 1999-05-26 | 2000-09-19 | Cyber Instrument Technologies Llc | Method for wide range gas flow system with real time flow measurement and correction |
US6539968B1 (en) * | 2000-09-20 | 2003-04-01 | Fugasity Corporation | Fluid flow controller and method of operation |
WO2002033361A2 (en) * | 2000-10-13 | 2002-04-25 | Mks Instruments, Inc. | Apparatus and method for maintaining a constant pressure drop across a gas metering unit |
-
2005
- 2005-07-07 EP EP05772286A patent/EP1797489A4/en not_active Withdrawn
- 2005-07-07 JP JP2007520494A patent/JP2008506116A/en not_active Withdrawn
- 2005-07-07 WO PCT/US2005/024084 patent/WO2006017116A2/en active Application Filing
- 2005-07-08 TW TW094123260A patent/TWI278606B/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI416619B (en) * | 2006-11-17 | 2013-11-21 | Lam Res Corp | Methods for performing actual flow verification |
TWI463287B (en) * | 2007-12-27 | 2014-12-01 | Horiba Stec Co | Flow rate ratio control device |
TWI561948B (en) * | 2012-09-25 | 2016-12-11 | Mks Instr Inc | Method and apparatus for self verification of pressured based mass flow controllers |
US10031005B2 (en) | 2012-09-25 | 2018-07-24 | Mks Instruments, Inc. | Method and apparatus for self verification of pressure-based mass flow controllers |
Also Published As
Publication number | Publication date |
---|---|
EP1797489A2 (en) | 2007-06-20 |
TWI278606B (en) | 2007-04-11 |
WO2006017116A3 (en) | 2007-03-01 |
JP2008506116A (en) | 2008-02-28 |
WO2006017116A2 (en) | 2006-02-16 |
EP1797489A4 (en) | 2008-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |