JP4108081B2 - 振動変換器 - Google Patents
振動変換器 Download PDFInfo
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- JP4108081B2 JP4108081B2 JP2004503899A JP2004503899A JP4108081B2 JP 4108081 B2 JP4108081 B2 JP 4108081B2 JP 2004503899 A JP2004503899 A JP 2004503899A JP 2004503899 A JP2004503899 A JP 2004503899A JP 4108081 B2 JP4108081 B2 JP 4108081B2
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- flow tube
- vibration
- transducer
- tube
- torsional
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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
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
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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
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
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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
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
- G01F1/8418—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments motion or vibration balancing 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
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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
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8427—Coriolis or gyroscopic mass flowmeters constructional details detectors
-
- 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
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
- G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
- G01F1/849—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having straight measuring conduits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
- G01N11/162—Oscillations being torsional, e.g. produced by rotating bodies
- G01N11/167—Sample holder oscillates, e.g. rotating crucible
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
- G01N2203/0094—Visco-elasticity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
Description
作動時に振動し、導入管部および排出管部を介して管と連通する、流体を流すための単一の直管のフローチューブと、
作動時に、フローチューブの少なくとも一部を励振して、フローチューブと同一線上の振動軸を中心としたねじれ振動を引き起こす励振アセンブリと、
フローチューブの振動を部分的に感知するためのセンサー装置と、
を備えている。
本発明の第2の実施形態において、内側部分は、導入管部および排出管部と実質的に軸合わせされた、フローチューブの内部に存在する第1の慣性主軸を有する。
本発明の第4の実施形態において、防振器は実質的に管状を呈し、実質的にフローチューブと同軸である。
本発明の第6の実施形態において、防振器のねじれ固有振動数は、フローチューブのねじれ固有振動数の0.8倍を上回る。
本発明の発展形態によると、フローチューブはねじれ振動とたわみ振動とを同時に行なう。
本発明の第9の実施形態において、励振アセンブリは、たわみ振動を発生させる力が、第1の慣性主軸と直交する第2の慣性主軸から外れた仮想の線に沿って、あるいは多くとも1点で第2の慣性主軸と交わる仮想の線に沿って、フローチューブに作用するように、設計され、かつ、フローチューブおよび防振器に取り付けられている。
本発明の第13の実施形態において、内側部分の質量分布を調整するために、追加の重量がフローチューブに取り付けられ、および/または、溝が防振器に形成されている。
防振器20は、長手方向軸Lを中心にひねられる単一のフローチューブ10によって発生したトルクと大部分がバランスする反力トルクを発生させるのに役に立つ。これによって特に接続管といった変換器の周囲環境が実質的に力学的トルクの無い状態に保たれる。フローチューブ10がさらに励振されてたわみ振動を引き起こす上記の場合は、防振器20は、例えば変換器の作動中に最も頻繁に示されると期待される値あるいは臨界値といった所定の流体密度値のために、フローチューブ10を振動させる際に発生する可能性のあるいかなる剪断力および/または曲げモーメントの大部分がバランスさせられる点に、変換器を力学的にバランスさせることにも役立つ。本願の出願日より前には公開されていない本出願人による特許文献5を参照されたい。
Claims (17)
- 管の内部を流れる流体のための振動変換器であって、
前記流体を導くための実質的に直管のフローチューブであって、該フローチューブの導入側端部まで延びる導入管部と、該フローチューブの排出側端部まで延びる排出管部とを介して、接続管と連通し、作動中に少なくとも断続的に振動させられるフローチューブと、
前記導入側端部および前記排出側端部に取り付けられた防振器と、
前記導入管部および前記排出管部に取り付けられた変換器ケースと、
少なくとも前記フローチューブを振動させるために、前記フローチューブおよび前記防振器に作用する励振アセンブリと、
前記フローチューブの振動を感知するためのセンサー装置と、
を有し、
前記流体中に剪断応力を発生させるために、作動中に、前記導入管部および前記排出管部と実質的に軸合わせされた軸を中心に、前記フローチューブの少なくとも一部がねじれ振動し、かつ、前記流体中にコリオリ力を誘導するために、作動中に、前記フローチューブがその長手方向軸を中心に少なくとも断続的にたわみ振動し、
前記ねじれ振動の振動数と前記たわみ振動の振動数とが異なるように選択され、
少なくとも前記フローチューブ、前記防振器、前記センサー装置および前記励振アセンブリによって形成され、かつ、少なくとも前記導入管部および前記排出管部に装着された、前記変換器の内側部分が、前記フローチューブ内に位置する重心を有する、
振動変換器。 - 請求項1に記載の変換器であって、前記内側部分の前記重心が、前記フローチューブの長手方向軸、特に前記導入管部および前記排出管部と軸合わせされた軸上にできるだけ正確に配置された、変換器。
- 請求項1に記載の変換器であって、前記内側部分は、前記導入管部および前記排出管部と実質的に軸合わせされ、かつ、前記フローチューブ内に存在する、第1の慣性主軸を有する、変換器。
- 請求項1に記載の変換器であって、前記内側部分は、前記ねじれ振動の軸に対して実質的に対称の質量分布を有する、変換器。
- 請求項1に記載の変換器であって、前記防振器は、実質的に筒状の形状を有し、かつ前記フローチューブと実質的に同軸である、変換器。
- 請求項1に記載の変換器であって、前記フローチューブのねじれ固有振動数と、前記防振器のねじれ固有振動数とは少なくともほぼ同一である、変換器。
- 請求項1に記載の変換器であって、前記防振器のねじれ固有振動数は、前記フローチューブのねじれ振動数の0.8倍を上回る、変換器。
- 請求項1に記載の変換器であって、前記防振器のねじれ固有振動数は前記フローチューブのねじれ振動数の1.2倍を下回る、変換器。
- 請求項1に記載の変換器であって、前記フローチューブは前記ねじれ振動と前記たわみ振動とを同時に行なう、変換器。
- 請求項9に記載の変換器であって、前記フローチューブのたわみ振動の振動数は前記フローチューブの最も低い固有たわみ共鳴振動数にできるだけ正確に一致している、変換器。
- 請求項3に記載の変換器であって、前記励振アセンブリは、前記たわみ振動を発生させる力が、前記第1の慣性主軸と直交する軸である第2の慣性主軸から外れて通る仮想の線に沿って、あるいは、多くとも1点で前記第2の慣性主軸と交わる仮想の線に沿って、前記フローチューブに作用するように、設計され、かつ、前記フローチューブおよび前記防振器に取り付けられている、変換器。
- 請求項1に記載の変換器であって、前記励振アセンブリは、前記フローチューブに取り付けられ、作動中に少なくとも断続的に励振電流が流れ、また、前記フローチューブおよび前記防振器に、前記防振器に接続されたレバーと、前記レバーに取り付けられたアーマチャーとを介して作用する励振コイルを有する、変換器。
- 請求項11に記載の変換器であって、前記センサー装置は、前記変換器内に前記第2の慣性主軸から外れて配置されたセンサーコイルと、前記センサーコイルに磁気的に接続されたアーマチャーとを備え、それらの相対的な配置、特に間隔が、前記フローチューブおよび前記防振器のねじれ振動およびたわみ振動の結果として変化し、これによって可変の測定電圧が少なくとも断続的に前記センサーコイル内に誘導される、変換器。
- 請求項1に記載の変換器であって、前記ねじれ振動の振動数は、前記フローチューブがその全長に渡って実質的に一方向にねじれるモードである基本ねじれ固有モードの固有共鳴振動数にできるだけ正確に一致している、変換器。
- 請求項1に記載の変換器であって、前記内側部分の質量分布を調整するために、追加の重量が前記フローチューブに取り付けられ、および/または、溝が前記防振器に形成されている、変換器。
- 管の内部を流れる流体の粘度を測定するための計測器であって、請求項1乃至15のいずれか1項に記載の変換器を備えた計測器。
- 管の内部を流れる流体の粘度を測定するための、および、前記流体の質量流量および/または密度を測定するための計測器であって、請求項1乃至15のいずれか1項に記載の変換器を備えた計測器。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002120827 DE10220827A1 (de) | 2002-05-08 | 2002-05-08 | Messwandler vom Vibrationstyp |
US39311602P | 2002-07-03 | 2002-07-03 | |
DE2002135322 DE10235322A1 (de) | 2002-08-01 | 2002-08-01 | Meßwandler vom Vibrationstyp |
US40004702P | 2002-08-02 | 2002-08-02 | |
PCT/EP2003/004778 WO2003095950A1 (de) | 2002-05-08 | 2003-05-07 | Messwandler vom vibrationstyp |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005524845A JP2005524845A (ja) | 2005-08-18 |
JP4108081B2 true JP4108081B2 (ja) | 2008-06-25 |
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ID=29424601
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004503899A Expired - Fee Related JP4108081B2 (ja) | 2002-05-08 | 2003-05-07 | 振動変換器 |
JP2004503898A Expired - Fee Related JP4105685B2 (ja) | 2002-05-08 | 2003-05-07 | 振動型トランスデューサ |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004503898A Expired - Fee Related JP4105685B2 (ja) | 2002-05-08 | 2003-05-07 | 振動型トランスデューサ |
Country Status (7)
Country | Link |
---|---|
US (5) | US6840109B2 (ja) |
EP (2) | EP1502085B1 (ja) |
JP (2) | JP4108081B2 (ja) |
CN (2) | CN100387943C (ja) |
AU (2) | AU2003227729A1 (ja) |
CA (2) | CA2485131C (ja) |
WO (2) | WO2003095949A1 (ja) |
Families Citing this family (103)
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DE102013101369B4 (de) | 2013-02-12 | 2021-02-18 | Endress + Hauser Flowtec Ag | Coriolis-Massendurchfluß-Meßgerät |
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EP1502085B1 (de) * | 2002-05-08 | 2015-09-02 | Endress + Hauser Flowtec AG | Messwandler vom vibrationstyp |
GB0302519D0 (en) * | 2003-02-04 | 2003-03-05 | Trw Ltd | Improvements in fluid monitoring |
DE10344742A1 (de) * | 2003-09-25 | 2005-04-14 | Endress + Hauser Flowtec Ag, Reinach | Verfahren zum Einstellen einer mechanischen Resonanzfrequenz |
DE102004011377A1 (de) * | 2004-03-05 | 2005-09-15 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgrösse |
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DE102004014029A1 (de) * | 2004-03-19 | 2005-10-06 | Endress + Hauser Flowtec Ag, Reinach | Coriolis-Massedurchfluß-Meßgerät |
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DE102004018326B4 (de) | 2004-04-13 | 2023-02-23 | Endress + Hauser Flowtec Ag | Vorrichtung und Verfahren zum Messen einer Dichte und/oder einer Viskosität eines Fluids |
US7077014B2 (en) * | 2004-06-23 | 2006-07-18 | Endress + Hauser Flowtec Ag | Vibration-type measuring transducer |
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EP1807681B1 (de) * | 2004-11-04 | 2016-09-07 | Endress+Hauser Flowtec AG | Messaufnehmer vom vibrationstyp |
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DE102005054855A1 (de) * | 2005-11-15 | 2007-05-16 | Flowtec Ag | Meßwandler vom Vibrationstyp |
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US7360453B2 (en) | 2005-12-27 | 2008-04-22 | Endress + Hauser Flowtec Ag | In-line measuring devices and method for compensation measurement errors in in-line measuring devices |
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- 2003-05-07 WO PCT/EP2003/004777 patent/WO2003095949A1/de active Application Filing
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JP2005524845A (ja) | 2005-08-18 |
US7353717B2 (en) | 2008-04-08 |
CN1653316A (zh) | 2005-08-10 |
US7017424B2 (en) | 2006-03-28 |
CN1653317A (zh) | 2005-08-10 |
JP2005524844A (ja) | 2005-08-18 |
US7654153B2 (en) | 2010-02-02 |
US20060225517A1 (en) | 2006-10-12 |
EP1502084A1 (de) | 2005-02-02 |
CN100387944C (zh) | 2008-05-14 |
US6840109B2 (en) | 2005-01-11 |
CA2485131A1 (en) | 2003-11-20 |
US7080564B2 (en) | 2006-07-25 |
CA2484668A1 (en) | 2003-11-20 |
EP1502085A1 (de) | 2005-02-02 |
CN100387943C (zh) | 2008-05-14 |
CA2485131C (en) | 2011-01-04 |
EP1502085B1 (de) | 2015-09-02 |
AU2003232734A1 (en) | 2003-11-11 |
AU2003227729A1 (en) | 2003-11-11 |
US20080184817A1 (en) | 2008-08-07 |
US20030233868A1 (en) | 2003-12-25 |
US20060000292A1 (en) | 2006-01-05 |
WO2003095949A1 (de) | 2003-11-20 |
JP4105685B2 (ja) | 2008-06-25 |
US20030233878A1 (en) | 2003-12-25 |
WO2003095950A1 (de) | 2003-11-20 |
EP1502084B1 (de) | 2020-01-15 |
CA2484668C (en) | 2010-07-13 |
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