JP6093019B2 - 質量流量制御システム - Google Patents
質量流量制御システム Download PDFInfo
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- JP6093019B2 JP6093019B2 JP2015533082A JP2015533082A JP6093019B2 JP 6093019 B2 JP6093019 B2 JP 6093019B2 JP 2015533082 A JP2015533082 A JP 2015533082A JP 2015533082 A JP2015533082 A JP 2015533082A JP 6093019 B2 JP6093019 B2 JP 6093019B2
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- 239000012530 fluid Substances 0.000 claims description 57
- 238000012795 verification Methods 0.000 claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 230000004044 response Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 7
- 238000007620 mathematical function Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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Classifications
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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
- G01F1/05—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 mechanical effects
- G01F1/34—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 mechanical effects by measuring pressure or differential pressure
- G01F1/36—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 mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/363—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 mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
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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
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
-
- 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
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
- G01F1/88—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with differential-pressure measurement to determine the volume flow
-
- 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
-
- 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
-
- 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
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
- G01F15/043—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means
-
- 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
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
- G01F15/043—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means
- G01F15/046—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means involving digital counting
-
- 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
-
- 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
- G05D7/0641—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 using a plurality of throttling means
- G05D7/0647—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 using a plurality of throttling means the plurality of throttling means being arranged in series
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- 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
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0379—By fluid pressure
-
- 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
- Y10T137/7761—Electrically actuated valve
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Flow Control (AREA)
- Measuring Volume Flow (AREA)
Description
他の実施例では前記システムは、前記流量を非チョーク流れの状態に対応して測定できるように、前記流量規制器より下流の流体の前記測定圧力を表す圧力測定信号を供給する第2圧力センサをさらに備える。
Claims (14)
- 処理に合わせて流体の流量を制御する際に、その精度をリアルタイムで自己検証可能である質量流量制御システムであって、
所定の圧力の流体を受け入れる入力口と、
所定の圧力の前記流体を配気する出力口と、
所定の圧力の前記流体が流れる導管と、
前記入力口から前記出力口への前記導管内の流体の前記流量を制御可能に制御する制御弁と、
前記導管に接続され、既知容量の流体を貯蔵する貯蔵器と、
前記貯蔵器と前記出力口との間の流量を制御可能に規制する、前記貯蔵器と前記出力口との間の流量規制器と、
前記導管内の前記流体の前記圧力を検知する圧力センサと、
前記導管を通る流体の前記流量が流量設定ポイントに等しくなるように、前記圧力センサからの信号に基づき前記制御弁を制御し、
前記圧力センサからの前記信号に基づき前記貯蔵器内の圧力減衰速度を判断することによって、前記流量制御の前記精度を検証する、制御部と、
を備えることを特徴とする、当該質量流量制御システム。 - 前記流量規制器は、前記導管を通る前記流体の流量にチョーク流れの状態を作り出すように制御されることを特徴とする、請求項1に記載の質量流量制御システム。
- 前記流量規制器は、断面積を調整可能な孔を有することを特徴とする、請求項2に記載の質量流量制御システム。
- 前記流量規制器を規定する調整可能な開口を備える第2制御弁をさらに備えることを特徴とする、請求項2に記載の質量流量制御システム。
- 前記導管内の前記流体の測定温度を表す温度測定信号を供給するように構成された温度センサをさらに備えることを特徴とする、請求項1に記載の質量流量制御システム。
- 前記貯蔵器からの前記流体の前記減衰速度によってなされた測定流量であるQvと、チョーク流れの状態に基づいて前記システムによって測定された前記流量Qpとの間のいかなる差にも応じて、その流量精度を自己検証することが可能であることを特徴とする、請求項7に記載の質量流量制御システム。
- 流量の検証の終了後、零流量設定ポイントの命令を遂行して閉止される第2制御弁をさらに備えることを特徴とする、請求項7に記載の質量流量制御システム。
- 流量制御処理の工程間のいずれの間の検証期間でも検証が起こり、前記検証期間は100〜300ミリセカンドであることを特徴とする、請求項7に記載の質量流量制御システム。
- 前記貯蔵器は、前記制御弁と前記流量規制器との間に位置することを特徴とする、請求項7に記載の質量流量制御システム。
- QvからのQpの逸脱が所定の精度公差制限よりも大きい場合、前記システムは、ホストコントローラに対して、較正外状態を警告する警報を発することを特徴とする、請求項7に記載の質量流量制御システム。
- 前記システムは、QpとQvとの間の前記流量の誤差が所定の精度公差制限以下で最小となるように、前記測定流量Qpに対応する流量算出等式の係数を、検証結果に基づいて調整可能であり、流量検証期間の間、前記公差の制限内で前記システムが再較正されることを特徴とする、請求項7に記載の質量流量制御システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/626,432 | 2012-09-25 | ||
US13/626,432 US10031005B2 (en) | 2012-09-25 | 2012-09-25 | Method and apparatus for self verification of pressure-based mass flow controllers |
PCT/US2013/057184 WO2014051925A1 (en) | 2012-09-25 | 2013-08-29 | Method and apparatus for self verification of pressure based mass flow controllers |
Publications (2)
Publication Number | Publication Date |
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JP2015530668A JP2015530668A (ja) | 2015-10-15 |
JP6093019B2 true JP6093019B2 (ja) | 2017-03-08 |
Family
ID=49162251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2015533082A Active JP6093019B2 (ja) | 2012-09-25 | 2013-08-29 | 質量流量制御システム |
Country Status (8)
Country | Link |
---|---|
US (2) | US10031005B2 (ja) |
EP (1) | EP2901227B1 (ja) |
JP (1) | JP6093019B2 (ja) |
KR (1) | KR101662046B1 (ja) |
CN (1) | CN104704434B (ja) |
SG (1) | SG11201501847VA (ja) |
TW (1) | TWI561948B (ja) |
WO (1) | WO2014051925A1 (ja) |
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EP2901227B1 (en) | 2019-03-06 |
EP2901227A1 (en) | 2015-08-05 |
CN104704434A (zh) | 2015-06-10 |
TW201433897A (zh) | 2014-09-01 |
US10801867B2 (en) | 2020-10-13 |
KR20150060788A (ko) | 2015-06-03 |
CN104704434B (zh) | 2018-12-04 |
US10031005B2 (en) | 2018-07-24 |
WO2014051925A1 (en) | 2014-04-03 |
TWI561948B (en) | 2016-12-11 |
JP2015530668A (ja) | 2015-10-15 |
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US20180306615A1 (en) | 2018-10-25 |
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