DE10314386A1 - Flow regulator for fluids flowing in channels within microtechnology components, has an adjustable flow resistance that is controlled by a regulation unit based on the output of a flow sensor - Google Patents
Flow regulator for fluids flowing in channels within microtechnology components, has an adjustable flow resistance that is controlled by a regulation unit based on the output of a flow sensor Download PDFInfo
- Publication number
- DE10314386A1 DE10314386A1 DE2003114386 DE10314386A DE10314386A1 DE 10314386 A1 DE10314386 A1 DE 10314386A1 DE 2003114386 DE2003114386 DE 2003114386 DE 10314386 A DE10314386 A DE 10314386A DE 10314386 A1 DE10314386 A1 DE 10314386A1
- Authority
- DE
- Germany
- Prior art keywords
- flow
- control device
- channel
- flow control
- plate
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C5/00—Manufacture of fluid circuit elements; Manufacture of assemblages of such elements integrated circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0015—Diaphragm or membrane valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
- F16K99/0042—Electric operating means therefor
- F16K99/0048—Electric operating means therefor using piezoelectric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
- F16K99/0042—Electric operating means therefor
- F16K99/0051—Electric operating means therefor using electrostatic means
-
- 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
- G05D7/0694—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 or flow sources of very small size, e.g. microfluidics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K2099/0073—Fabrication methods specifically adapted for microvalves
- F16K2099/008—Multi-layer fabrications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K2099/0082—Microvalves adapted for a particular use
- F16K2099/0084—Chemistry or biology, e.g. "lab-on-a-chip" technology
Abstract
Description
Die Erfindung betrifft einen Durchflussregeleinrichtung zum Einstellen des Volumen- oder Massendurchflusses eines gasförmigen oder flüssigen Mediums gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a flow control device to adjust the volume or Mass flow of a gaseous or liquid medium according to the generic term of claim 1.
Ein solche Durchflussregeleinrichtung kommt beispielsweise in Analyseeinrichtungen der Mikrotechnik zur Anwendung, die zur Untersuchung von strömenden Medien vorgesehen sind. Hierfür ist ein definierter Durchfluss des zu untersuchenden Medium erforderlich, da ein sich ändernder Fluss das Ergebnis von Analysen beeinflussen kann. Mit Hilfe einer solchen Durchflussregeleinrichtung kann der Fluss eines jeden zu untersuchenden Mediums auf einen definierten Wert eingestellt werden.Such a flow control device is coming for example in analytical equipment used in microtechnology, the one for examining flowing Media are provided. Therefor a defined flow of the medium to be examined is required, there a changing Flow can affect the outcome of analyzes. With the help of a Such a flow control device allows the flow of everyone investigating medium can be set to a defined value.
Durchflussregeleinrichtungen werden im makroskopischen Bereich seit langem eingesetzt. Grundsätzlich bestehen diese Vorrichtungen aus einem einstellbaren Strömungswiderstand und einem Fluss-Senor, die beide von dem zu regelnden Medium durchströmt werden. Die Erfassung des Ist-Wertes ermöglicht einer zwisschengeschalteten Reglereinheit über eine Änderung des einstellbaren Strömungswiderstandes den Fluss des Mediums auf den Soll-Wert einzustellen.Flow control devices are used in the macroscopic field for a long time. Basically exist these devices from an adjustable flow resistance and a flow sensor, both of which are flowed through by the medium to be controlled. The capture of the Actual value enabled an intermediate regulator unit via a change in the adjustable flow resistance adjust the flow of the medium to the target value.
Die Verwendung der bis jetzt bekannten Durchflussregeleinrichtungen in Kombination mit Vorrichtungen der Mikrotechnik ist nicht nur wegen der unterschiedlichen Arbeitsbereiche ausgeschlossen, sondern auch wegen der zu geringen inneren Flussimpedanz der makroskopischen Regelventile.The use of the flow control devices known up to now in combination with microtechnology devices is not only excluded because of the different work areas, but also because of the insufficient internal flow impedance of the macroscopic Control valves.
Darüber hinaus sind makroskopische Durchflussregeleinrichtungen auch auf Grund ihrer geometrischen Abmessungen für die Regelung von sehr kleinen Durchflüssen un geeignet. Sie weisen ein größeres Bauvolumen als eine in der Mikrotechnik zur Anwendung kommende Analysevorrichtung auf. Zudem reagieren sie im Vergleich zu Analysevorrichtung der Mikrotechnik zu langsam. Die sehr geringen Flussraten, die in den Bauelementen der Mikrotechnik auftreten, können mittels konventioneller Durchflussregeleinrichtungen nicht ausreichend präzise eingestellt werden, wenn sie nicht gar von den Leckraten übertroffen werden. Das in einer konventionellen Durchflussregeleinrichtung vorhandene große Totvolumen bewirkt in Kombination mit den geringen Flüssen in einer Vorrichtung der Mikrotechnik, dass das zu analysierende Medium in der Durchflussregeleinrichtung zwischengespeichert wird, und somit die eigentlich interessierende Analyse des Mediums nur mit niederen Messraten möglich ist. Darüber erfordert eine konventionelle Durchflussregeleinrichtung bei geringen Flussstärken eine wiederum erhöhte Regelzeitkonstante, die durchaus im Bereich von mehreren Sekunden bis zu Minuten liegen kann.They are also macroscopic Flow control devices also based on their geometric Dimensions for the regulation of very small flows is unsuitable. You point a larger build volume as an analysis device used in microtechnology on. In addition, they react in comparison to the analysis device of the Microtechnology too slow. The very low flow rates in the Components of microtechnology can occur using conventional Flow control devices are not set with sufficient precision if they are not even exceeded by the leak rates. That in one conventional flow control device existing large dead volume in combination with the low fluxes in a device Microtechnology that the medium to be analyzed in the flow control device is cached, and thus the one that is actually of interest Analysis of the medium is only possible with low measuring rates. Over required a conventional flow control device with low flow strengths again increased control time constant, which are in the range of several seconds to minutes can.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Durchflussregeleinrichtung aufzuzeigen, mit welcher der Volumen- und/oder Massendurchfluss von strömenden Medien in Bauelementen der Mikrotechnik geregelt werden kann.The object of the invention is therefore based on showing a flow control device with which the volume and / or mass flow of flowing media in components of the Microtechnology can be regulated.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This task is due to the characteristics of claim 1 solved.
Die erfindungsgemäße Durchflussregeleinrichtung zeichnet sich durch eine im Vergleich zu anderen Bauelementen der Mikrotechnik große Durchflussimpedanz aus. Die mit der Durchflussregeleinrichtung einstellbaren Strömungswiderstände ermöglichen eine für die Anforderungen der Mikrotechnik schnelle und damit auch genaue Regelung mit Reaktionszeiten in der Größenordnung von 1 ms bis 1Oms. Die Durchflussregeleinrichtung besteht aus einem Sensor zur Bestimmung des aktuellen Volumen- oder Massendurchflusses und einer einstellbaren Durchflussimpedanz, die durch Rückkopplung des Sensorsignals über eine Reglereinheit angesprochen wird, und den vorgewählten Soll-Durchfluss in Rückkopplung mit dem Fluss-Senor erzeugt. Für die Herstellung der Durchflussregeleinrichtung werden die gleichen Materialien verwendet, wie das für die Fertigung anderer Bauelemente der Mikrotechnik der Fall ist, so dass die monolithische oder hybride Integration der Durchflussregeleinrichtung in jede Vorrichtung der Mikro technik problemlos möglich ist. Der Fluss-Senor sowie der einstellbare Strömungswiderstand können mit mikrosystemtechnischen Planarstrukturierungsverfahren in monolithischer Weise auf einem kleinen Trägerelement zu einer flächigen Baueinheit zusammengefasst werden. Das Trägerelement kann in jede Vorrichtung der Mikrotechnik integrieren werden, so dass kein größerer Aufwand für die Montage entsteht.The flow control device according to the invention is characterized by a compared to other components of the Microtechnology great Flow impedance off. The adjustable with the flow control device Allow flow resistance one for the requirements of microtechnology are quick and therefore also exact Control with response times in the order of 1 ms to 1Oms. The flow control device consists of a sensor for determination the current volume or mass flow and an adjustable Flow impedance caused by feedback of the Sensor signal via a controller unit is addressed and the preselected target flow in feedback generated with the river senor. For the manufacture of the flow control device will be the same Used materials like that for the manufacture of other components of microtechnology is the case, so that the monolithic or hybrid integration of the flow control device in any device of micro technology is easily possible. The flow sensor and the adjustable flow resistance can also be used microsystem-technical planar structuring method in monolithic Way on a small support element to a flat Unit can be summarized. The carrier element can be in any device the microtechnology will integrate so that no major effort for the Montage arises.
Weitere erfinderische Merkmale sind in den abhängigen Ansprüchen gekennzeichnet.Other inventive features are in the dependent claims characterized.
Die Erfindung wird nachfolgend an Hand von schematischen Zeichnungen näher erläutert.The invention will follow Hand explained in more detail by schematic drawings.
Es zeigen:Show it:
Die in
Wie die
Der Fluss-Senor
Die freien Enden der Drähte
Dieser aktuelle Messwert des Volumen-
oder Massendurchflusses wird der Reglereinheit
Die dem Flusssensor
Die in
Der Steg
Der Strömungswiderstand
Wie
Um einen Volumen- oder Massendurchfluss definierter
Größe eines
Mediums
Ein strömendes Medium
Die erfindungsgemäße Durchflussregeleinrichtung
Die Erfindung beschränkt sich nicht nur auf die hier beschriebenen Ausführungsbeispiele. Vielmehr umfasst sie alle Variationen der Vorrichtung, die dem Kern der Erfindung zugeordnet werden können.The invention is limited not only on the exemplary embodiments described here. Rather includes they all variations of the device that are at the core of the invention can be assigned.
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003114386 DE10314386A1 (en) | 2003-03-28 | 2003-03-28 | Flow regulator for fluids flowing in channels within microtechnology components, has an adjustable flow resistance that is controlled by a regulation unit based on the output of a flow sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003114386 DE10314386A1 (en) | 2003-03-28 | 2003-03-28 | Flow regulator for fluids flowing in channels within microtechnology components, has an adjustable flow resistance that is controlled by a regulation unit based on the output of a flow sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10314386A1 true DE10314386A1 (en) | 2004-10-07 |
Family
ID=32946343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003114386 Withdrawn DE10314386A1 (en) | 2003-03-28 | 2003-03-28 | Flow regulator for fluids flowing in channels within microtechnology components, has an adjustable flow resistance that is controlled by a regulation unit based on the output of a flow sensor |
Country Status (1)
Country | Link |
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DE (1) | DE10314386A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011047361A1 (en) * | 2009-10-15 | 2011-04-21 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
US9400004B2 (en) | 2010-11-29 | 2016-07-26 | Pivotal Systems Corporation | Transient measurements of mass flow controllers |
WO2017025857A1 (en) * | 2015-08-11 | 2017-02-16 | Agilent Technologies, Inc. | Stacked layer-type member with integrated functional component |
US10401202B2 (en) | 2015-07-10 | 2019-09-03 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4821997A (en) * | 1986-09-24 | 1989-04-18 | The Board Of Trustees Of The Leland Stanford Junior University | Integrated, microminiature electric-to-fluidic valve and pressure/flow regulator |
JPH0695745A (en) * | 1992-03-06 | 1994-04-08 | Masaki Esashi | Micro quantity controller |
DE19548220A1 (en) * | 1995-12-22 | 1997-06-26 | Hahn Schickard Ges | Device for regulating the flow of a liquid |
WO1999015820A1 (en) * | 1997-09-23 | 1999-04-01 | INSTITUT FüR MIKROTECHNIK MAINZ GMBH | Micro-valve |
DE19802367C1 (en) * | 1997-02-19 | 1999-09-23 | Hahn Schickard Ges | Microdosing device array and method for operating the same |
US5975485A (en) * | 1997-10-16 | 1999-11-02 | Industrial Technology Research Institute | Integrated micro thermistor type flow control module |
-
2003
- 2003-03-28 DE DE2003114386 patent/DE10314386A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4821997A (en) * | 1986-09-24 | 1989-04-18 | The Board Of Trustees Of The Leland Stanford Junior University | Integrated, microminiature electric-to-fluidic valve and pressure/flow regulator |
JPH0695745A (en) * | 1992-03-06 | 1994-04-08 | Masaki Esashi | Micro quantity controller |
DE19548220A1 (en) * | 1995-12-22 | 1997-06-26 | Hahn Schickard Ges | Device for regulating the flow of a liquid |
DE19802367C1 (en) * | 1997-02-19 | 1999-09-23 | Hahn Schickard Ges | Microdosing device array and method for operating the same |
WO1999015820A1 (en) * | 1997-09-23 | 1999-04-01 | INSTITUT FüR MIKROTECHNIK MAINZ GMBH | Micro-valve |
US5975485A (en) * | 1997-10-16 | 1999-11-02 | Industrial Technology Research Institute | Integrated micro thermistor type flow control module |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011047361A1 (en) * | 2009-10-15 | 2011-04-21 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
CN102687087A (en) * | 2009-10-15 | 2012-09-19 | 关键系统公司 | Method and apparatus for gas flow control |
CN102687087B (en) * | 2009-10-15 | 2016-08-24 | 关键系统公司 | The method and apparatus controlled for gas flow |
US9523435B2 (en) | 2009-10-15 | 2016-12-20 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
US9904297B2 (en) | 2009-10-15 | 2018-02-27 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
US9983595B2 (en) | 2009-10-15 | 2018-05-29 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
US9400004B2 (en) | 2010-11-29 | 2016-07-26 | Pivotal Systems Corporation | Transient measurements of mass flow controllers |
US10401202B2 (en) | 2015-07-10 | 2019-09-03 | Pivotal Systems Corporation | Method and apparatus for gas flow control |
WO2017025857A1 (en) * | 2015-08-11 | 2017-02-16 | Agilent Technologies, Inc. | Stacked layer-type member with integrated functional component |
US11035833B2 (en) | 2015-08-11 | 2021-06-15 | Agilent Technologies, Inc. | Stacked layer-type member with integrated functional component |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |