JP5058358B2 - 診断機構 - Google Patents
診断機構 Download PDFInfo
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- JP5058358B2 JP5058358B2 JP2011101924A JP2011101924A JP5058358B2 JP 5058358 B2 JP5058358 B2 JP 5058358B2 JP 2011101924 A JP2011101924 A JP 2011101924A JP 2011101924 A JP2011101924 A JP 2011101924A JP 5058358 B2 JP5058358 B2 JP 5058358B2
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- 230000007246 mechanism Effects 0.000 title claims description 49
- 238000003745 diagnosis Methods 0.000 claims description 144
- 238000012360 testing method Methods 0.000 claims description 71
- 239000012530 fluid Substances 0.000 claims description 41
- 230000005856 abnormality Effects 0.000 claims description 24
- 238000011144 upstream manufacturing Methods 0.000 claims description 21
- 238000012795 verification Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910001873 dinitrogen Inorganic materials 0.000 description 12
- 230000008859 change Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004092 self-diagnosis Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- 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
- 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
- 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
- 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
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F5/00—Measuring a proportion of the volume flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F5/00—Measuring a proportion of the volume flow
- G01F5/005—Measuring a proportion of the volume flow by measuring pressure or differential pressure, created by the use of flow constriction
-
- 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
-
- 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
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8359—Inspection means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Flow Control (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Measuring Volume Flow (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Description
2・・・熱式流量センサ
3・・・流量制御バルブ
41・・・流量制御部
42・・・検定値出力部
43・・・診断部
7・・・メイン流路(流路)
8・・・センサ流路(流路)
9・・・差圧式流量センサ
Claims (13)
- 流路を流れる流体の流量を測定する流量センサに関連する異常を診断する診断機構であって、
前記流量センサの出力する測定流量値が目標流量値となるように、前記流路に設けられた流量制御バルブの開度を制御する流量制御部と、
前記流量センサよりも上流において前記流路が閉止されてから、前記測定流量値と前記目標流量値とが実質的に略等しい状態が終了するまでの少なくとも一部の期間を診断期間として、前記診断期間における前記測定流量値の時間積分に関連する値である検定値を出力する検定値出力部と、
前記検定値と予め定めた規定値とを比較して、前記流量センサに関する異常の有無を診断する診断部とを備えたことを特徴とする診断機構。 - 前記流路がメイン流路と、前記メイン流路から分岐して再び当該メイン流路に合流するセンサ流路とを備えており、前記流量センサが、前記センサ流路に前記流体の流量を測定する流量検出機構を具備する熱式流量センサである請求項1記載の診断機構。
- 前記流量センサが、差圧式流量センサである請求項1記載の診断機構。
- 前記検定値が、前記診断期間において前記測定流量値を時間積分した時間積分値である請求項1、2又は3記載の診断機構
- 前記検定値が、前記診断期間の長さである請求項1、2又は3記載の診断機構。
- 前記検定値出力部が、前記診断期間の終了時点を前記測定流量値と前記目標流量値の偏差に基づいて検出する請求項1、2、3、4又は5記載の診断機構。
- 前記検定値出力部が、前記診断期間の終了時点を前記流量制御バルブの開度が全開又は所定の診断終了開度となったことに基づいて検出する請求項1、2、3、4又は5記載の診断機構。
- 前記診断終了開度が、前記流量制御バルブの全開の開度から所定量だけ小さい開度である請求項7記載の診断機構。
- 前記検定値出力部が、前記流量センサの上流に設けられたバルブを制御可能に構成されており、
当該検定値出力部が、前記流量制御バルブの開度が前記診断終了開度となった時点で前記バルブを開くよう構成されている請求項7又8記載の診断機構。 - 前記診断部が、前記検定値が前記規定値よりも大きい場合には、前記メイン流路の詰まりによる異常であると診断し、前記流量積分値が前記規定値よりも小さい場合には、前記センサ流路の詰まりによる異常であると診断するように構成された請求項2、4、5、6、7、8又は9記載の診断機構。
- 前記流体の圧力を測定して、その測定圧力値を出力する圧力センサを更に備え、
前記流量積分値算出部が、前記測定圧力値に基づいて前記検定値を補正するように構成された請求項1、2、3、4、5、6、7、8、9又は10記載の診断機構 - 前記流体の温度を測定して、その測定温度を出力する温度センサを更に備え、
前記流量積分値算出部が、前記測定温度に基づいて前記検定値を補正するように構成された請求項1、2、3、4、5、6、7、8、9、10又は11記載の診断機構。 - 前記規定値が、前記流量センサの測定出力値が正常な時において前記検定値出力部が出力した検定値である請求項1、2、3、4、5、6、7、8、9、10、11又は12記載の診断機構。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011101924A JP5058358B2 (ja) | 2010-09-30 | 2011-04-28 | 診断機構 |
CN201110288470.9A CN102445939B (zh) | 2010-09-30 | 2011-09-26 | 诊断机构 |
KR1020110098267A KR101861369B1 (ko) | 2010-09-30 | 2011-09-28 | 진단기구 |
TW100134949A TWI531882B (zh) | 2010-09-30 | 2011-09-28 | 診斷機構 |
US13/250,602 US8965714B2 (en) | 2010-09-30 | 2011-09-30 | Diagnostic mechanism |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010220722 | 2010-09-30 | ||
JP2010220722 | 2010-09-30 | ||
JP2011101924A JP5058358B2 (ja) | 2010-09-30 | 2011-04-28 | 診断機構 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012094108A JP2012094108A (ja) | 2012-05-17 |
JP5058358B2 true JP5058358B2 (ja) | 2012-10-24 |
Family
ID=45888756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011101924A Active JP5058358B2 (ja) | 2010-09-30 | 2011-04-28 | 診断機構 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8965714B2 (ja) |
JP (1) | JP5058358B2 (ja) |
KR (1) | KR101861369B1 (ja) |
CN (1) | CN102445939B (ja) |
TW (1) | TWI531882B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201108854D0 (en) * | 2011-05-26 | 2011-07-06 | Spp Process Technology Systems Uk Ltd | Mass flow controller monitoring |
US9454158B2 (en) | 2013-03-15 | 2016-09-27 | Bhushan Somani | Real time diagnostics for flow controller systems and methods |
US10466720B2 (en) * | 2013-08-09 | 2019-11-05 | Fisher Controls International Llc | Providing diagnostic and/or prognostic capabilities in a process control system |
US10082806B2 (en) | 2013-08-28 | 2018-09-25 | Horiba Stec, Co., Ltd. | Flow-rate control device and flow-rate control program |
US10983537B2 (en) | 2017-02-27 | 2021-04-20 | Flow Devices And Systems Inc. | Systems and methods for flow sensor back pressure adjustment for mass flow controller |
US10890475B2 (en) * | 2017-03-14 | 2021-01-12 | Horiba Stec, Co., Ltd. | Diagnostic system, diagnostic method, diagnostic program, and flow rate controller |
JP7384551B2 (ja) * | 2017-03-14 | 2023-11-21 | 株式会社堀場エステック | 診断システム、診断方法、診断プログラム及び流量制御装置。 |
JP6883325B2 (ja) * | 2017-08-09 | 2021-06-09 | アドバンス電気工業株式会社 | 液マイクロメータ |
US11733721B2 (en) * | 2018-02-26 | 2023-08-22 | Fujikin Incorporated | Flow rate control device and flow rate control method |
JP6960873B2 (ja) * | 2018-03-16 | 2021-11-05 | 東京エレクトロン株式会社 | 半導体製造システム及びサーバ装置 |
EP3540381B1 (en) * | 2018-03-16 | 2020-02-19 | Siemens Aktiengesellschaft | Flow measurement in valves with thermal correction |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2692770B2 (ja) | 1992-09-30 | 1997-12-17 | シーケーディ株式会社 | マスフローコントローラ流量検定システム |
JPH06214657A (ja) * | 1993-01-14 | 1994-08-05 | Hitachi Metals Ltd | 異常診断機能付マスフローコントローラ及びその異常診断方法 |
JP2635929B2 (ja) * | 1994-04-12 | 1997-07-30 | シーケーディ株式会社 | マスフローコントローラ絶対流量検定システム |
JP2659334B2 (ja) | 1994-05-12 | 1997-09-30 | シーケーディ株式会社 | マスフローコントローラ流量検定システム |
JP3932389B2 (ja) * | 1998-01-19 | 2007-06-20 | Smc株式会社 | マスフローコントローラの自己診断方法 |
JP3890138B2 (ja) * | 1998-04-10 | 2007-03-07 | シーケーディ株式会社 | 流量コントローラ |
JP2003280745A (ja) * | 2002-03-25 | 2003-10-02 | Stec Inc | マスフローコントローラ |
DE10392770B3 (de) * | 2002-06-24 | 2013-08-01 | Mks Instruments Inc. | Massenstrom-Sensor und Verfahren zur Druckschwankungs-unabhaengigen Massenstroemungs-Steuerung |
CN100483286C (zh) * | 2004-06-21 | 2009-04-29 | 日立金属株式会社 | 流量控制装置及其调整方法 |
US7412986B2 (en) * | 2004-07-09 | 2008-08-19 | Celerity, Inc. | Method and system for flow measurement and validation of a mass flow controller |
JP4788920B2 (ja) * | 2006-03-20 | 2011-10-05 | 日立金属株式会社 | 質量流量制御装置、その検定方法及び半導体製造装置 |
KR101572407B1 (ko) | 2006-11-02 | 2015-11-26 | 가부시키가이샤 호리바 에스텍 | 차압식 매스 플로우 컨트롤러에 있어서 진단 기구 |
JP5002602B2 (ja) * | 2006-12-05 | 2012-08-15 | 株式会社堀場エステック | 流量制御装置の検定方法 |
JP2010169657A (ja) * | 2008-12-25 | 2010-08-05 | Horiba Stec Co Ltd | 質量流量計及びマスフローコントローラ |
JP5395451B2 (ja) * | 2009-02-10 | 2014-01-22 | サーパス工業株式会社 | 流量コントローラ |
-
2011
- 2011-04-28 JP JP2011101924A patent/JP5058358B2/ja active Active
- 2011-09-26 CN CN201110288470.9A patent/CN102445939B/zh active Active
- 2011-09-28 TW TW100134949A patent/TWI531882B/zh active
- 2011-09-28 KR KR1020110098267A patent/KR101861369B1/ko active IP Right Grant
- 2011-09-30 US US13/250,602 patent/US8965714B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120080104A1 (en) | 2012-04-05 |
KR20120033999A (ko) | 2012-04-09 |
US8965714B2 (en) | 2015-02-24 |
CN102445939A (zh) | 2012-05-09 |
KR101861369B1 (ko) | 2018-05-28 |
CN102445939B (zh) | 2015-08-19 |
JP2012094108A (ja) | 2012-05-17 |
TW201214072A (en) | 2012-04-01 |
TWI531882B (zh) | 2016-05-01 |
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