JP2004316650A - 閉ループ圧電ポンプ - Google Patents
閉ループ圧電ポンプ Download PDFInfo
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- JP2004316650A JP2004316650A JP2004112407A JP2004112407A JP2004316650A JP 2004316650 A JP2004316650 A JP 2004316650A JP 2004112407 A JP2004112407 A JP 2004112407A JP 2004112407 A JP2004112407 A JP 2004112407A JP 2004316650 A JP2004316650 A JP 2004316650A
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- fluid
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- 239000012530 fluid Substances 0.000 claims abstract description 86
- 238000005086 pumping Methods 0.000 claims abstract description 54
- 230000008859 change Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 14
- 230000004044 response Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 229940127219 anticoagulant drug Drugs 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002430 laser surgery Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/09—Pumps having electric drive
- F04B43/095—Piezoelectric drive
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
【解決手段】 ポンプ筐体102の中に可動隔膜108が配置され、ポンピング室106が画定される。ポンピング室106には、流体をポンピング室106内に吸い込むための入口112と、流体を吐出させるための出口114とを有する。圧電変換器110が可動隔膜108に結合されていて、矢印118に沿う方向に作動して可動隔膜108を動かす。可動隔膜108が動くとポンピング室106の容積が変化し、液体の吸い込み・吐出が行われる。圧電変換器110はまた、ポンピング室106内の圧力の変動に応じた信号を出力可能で、この信号に基づいてポンピングを閉ループ制御する。
【選択図】 図2
Description
[1] ポンプ筐体(102)と、
前記ポンプ筐体内に配置されて、前記ポンプ筐体内にポンピング室(106)を画定する可動隔膜(108)であって、前記ポンピング室が、流体が前記ポンピング室内に入るための入口(112)と、流体を吐出させるための出口(114)とを有する可動隔膜(108)と、
前記可動隔膜(108)に結合されて、前記可動隔膜を動かすように作動し、その結果、前記ポンピング室(106)の容積を変化させる圧電変換器(110)とを備え、
前記圧電変換器(110)が、前記ポンピング室(106)内の圧力の変動を感知するように構成されたことを特徴とする圧電ポンプ(100)。
[2] 流体が前記ポンピング室(106)から前記入口(112)を通って流れるのを制限するように作動可能な流体弁(208)と、
流体が前記ポンピング室(106)内に前記出口(114)を通って流れるのを制限するように作動可能な流れ規制部(116)であって、前記流れ規制部(116)が、流体の音響インピーダンスにほぼ等しい音響インピーダンスを有するため、前記流れ規制部(116)からの音の反射が、前記流れ規制部(116)を通過する音の伝達に比して小さい、流れ規制部(116)と、
をさらに備えることを特徴とする、上記[1]に記載の圧電ポンプ(100)。
[3] 前記可動隔膜(108)が、剪断モードで変形するように構成された少なくとも1個の圧電変換器(110)を備えることを特徴とする、上記[1]に記載の圧電ポンプ(100)。
[4] 前記圧電変換器(110)が、前記圧電ポンプ(100)の下流の流体経路内で音響パルスを生成し、前記音響パルスの反射に応じて電気信号を生成するように作動可能であることを特徴とする、上記[1]に記載の圧電ポンプ(100)。
[5] 前記圧電変換器(110)に電気的に結合され、音響パルスの反射に応じて生成された電気信号から流体の物理的特性を判定するための信号アナライザ(506)をさらに備えることを特徴する上記[4]に記載の圧電ポンプ(100)。
[6] 前記出口(114)に結合された流体送達管(212)と、
各ポンピングサイクル間に、前記流体送達管(212)から流体を除去するように構成された流体逃がし管とをさらに備え、
前記信号アナライザ(506)が、前記ポンプ(100)の下流の流体経路内における音響パルスの反射に応じて生成された電気信号から、前記ポンプ(100)の下流にある流体経路内の流体の1つまたは複数の物理的特性を判定するように作動可能であることを特徴とする、上記[5]に記載の圧電ポンプ(100)。
[7] 圧電ポンプ(100)の下流にある流体経路の物理的特性を感知する方法であって、前記ポンプは、圧電変換器(110)により駆動される可動隔膜(108)により部分的に区画されたポンピング室(106)を有しており、
電気励起信号を前記圧電変換器(110)に送信して、圧電ポンプ(100)の下流にある流体経路内に音圧パルスを生成することと、
前記圧電ポンプ(100)の下流にある流体経路内の音圧パルスの反射により、前記圧電変換器(110)で生成された電気応答信号を感知することと、
前記圧電ポンプ(100)の下流にある流体経路の物理的特性を判定するために前記電気応答信号を分析することと、
を有することを特徴とする方法。
[8] 上記[7]に記載の方法による流体送達システムの物理的特性を測定する方法であって、
前記分析をすることが、前記励起信号の生成と前記応答信号の到着との間に経過した時間を評価することを有することを特徴とする方法。
[9] 上記[7]に記載の方法による流体送達システムの物理的特性を測定する方法であって、
前記分析をすることが、前記励起信号と前記応答信号との間の伝達関数を評価することと、
前記伝達関数の特性を既知の特性のデータベースと比較することと、
を有することを特徴とする方法。
[10] 上記[7]に記載の方法による流体送達システムの物理的特性を測定する方法であって、
前記電気応答信号に応じて前記圧電ポンプ(7)の動作を調整することをさらに有することを特徴とする方法。
102 ポンプ筐体
104 第1室
106 ポンピング室
108 隔膜
110 圧電変換器
112 入口
114 出口
116 流れ規制部
204 流体貯槽
208 逆止弁
212 流体送達管
214 開口部
216 混合タンク
220 攪拌機
502 パルス発生器
504 信号アナライザ
Claims (1)
- ポンプ筐体(102)と、
前記ポンプ筐体内に配置されて、前記ポンプ筐体内にポンピング室(106)を画定する可動隔膜(108)であって、前記ポンピング室が、流体が前記ポンピング室内に入るための入口(112)と、流体を吐出させるための出口(114)とを有する可動隔膜(108)と、
前記可動隔膜(108)に結合されて、前記可動隔膜を動かすように作動し、その結果、前記ポンピング室(106)の容積を変化させる圧電変換器(110)とを備え、
前記圧電変換器(110)が、前記ポンピング室(106)内の圧力の変動を感知するように構成されたことを特徴とする圧電ポンプ(100)。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/412,857 US7048519B2 (en) | 2003-04-14 | 2003-04-14 | Closed-loop piezoelectric pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004316650A true JP2004316650A (ja) | 2004-11-11 |
JP2004316650A5 JP2004316650A5 (ja) | 2007-05-17 |
Family
ID=32298247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004112407A Pending JP2004316650A (ja) | 2003-04-14 | 2004-04-06 | 閉ループ圧電ポンプ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7048519B2 (ja) |
JP (1) | JP2004316650A (ja) |
DE (1) | DE10360986A1 (ja) |
GB (1) | GB2401156A (ja) |
TW (1) | TW200504287A (ja) |
Cited By (1)
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JP2014523499A (ja) * | 2011-05-05 | 2014-09-11 | エクシジェント テクノロジーズ, エルエルシー | 往復動界面動電ポンプの差動圧力制御のシステムおよび方法 |
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Also Published As
Publication number | Publication date |
---|---|
DE10360986A1 (de) | 2004-11-25 |
US20040202558A1 (en) | 2004-10-14 |
TW200504287A (en) | 2005-02-01 |
GB0407187D0 (en) | 2004-05-05 |
GB2401156A (en) | 2004-11-03 |
US7048519B2 (en) | 2006-05-23 |
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