CN1223911C - 用于数字质量流量控制器的系统和方法 - Google Patents

用于数字质量流量控制器的系统和方法 Download PDF

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Publication number
CN1223911C
CN1223911C CNB008101841A CN00810184A CN1223911C CN 1223911 C CN1223911 C CN 1223911C CN B008101841 A CNB008101841 A CN B008101841A CN 00810184 A CN00810184 A CN 00810184A CN 1223911 C CN1223911 C CN 1223911C
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CN
China
Prior art keywords
signal
digital
derivative
flow
weighting
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 - Fee Related
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CNB008101841A
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English (en)
Chinese (zh)
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CN1371491A (zh
Inventor
埃曼纽尔·瓦尔斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entegris Inc
Original Assignee
Mykrolis Corp
Millipore Corp
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Publication of CN1371491A publication Critical patent/CN1371491A/zh
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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
    • G01F1/68—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 using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7759—Responsive to change in rate of fluid flow

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Flow Control (AREA)
  • Feedback Control In General (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Measuring Volume Flow (AREA)
  • Drying Of Semiconductors (AREA)
CNB008101841A 1999-07-10 2000-06-20 用于数字质量流量控制器的系统和方法 Expired - Fee Related CN1223911C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/351,120 US6389364B1 (en) 1999-07-10 1999-07-10 System and method for a digital mass flow controller
US09/351,120 1999-07-10

Publications (2)

Publication Number Publication Date
CN1371491A CN1371491A (zh) 2002-09-25
CN1223911C true CN1223911C (zh) 2005-10-19

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ID=23379659

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008101841A Expired - Fee Related CN1223911C (zh) 1999-07-10 2000-06-20 用于数字质量流量控制器的系统和方法

Country Status (10)

Country Link
US (2) US6389364B1 (enExample)
EP (1) EP1214635B9 (enExample)
JP (1) JP2003504749A (enExample)
KR (1) KR100684539B1 (enExample)
CN (1) CN1223911C (enExample)
AT (1) ATE236419T1 (enExample)
AU (1) AU6405400A (enExample)
DE (1) DE60001977T2 (enExample)
TW (1) TW434469B (enExample)
WO (1) WO2001004716A1 (enExample)

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Also Published As

Publication number Publication date
TW434469B (en) 2001-05-16
KR20020039316A (ko) 2002-05-25
KR100684539B1 (ko) 2007-02-20
ATE236419T1 (de) 2003-04-15
EP1214635B9 (en) 2004-01-07
DE60001977D1 (de) 2003-05-08
US6714878B2 (en) 2004-03-30
US6389364B1 (en) 2002-05-14
DE60001977T2 (de) 2003-11-06
JP2003504749A (ja) 2003-02-04
US20020114732A1 (en) 2002-08-22
AU6405400A (en) 2001-01-30
WO2001004716A1 (en) 2001-01-18
EP1214635A1 (en) 2002-06-19
EP1214635B1 (en) 2003-04-02
CN1371491A (zh) 2002-09-25

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Granted publication date: 20051019