JP2013531255A - 相補型デュアル絶対圧力センサを有する差圧トランスミッタ - Google Patents
相補型デュアル絶対圧力センサを有する差圧トランスミッタ Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
- G01L13/026—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms involving double diaphragm
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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
- G01F1/38—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 the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
- G01F1/383—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 the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with electrical or electro-mechanical indication
-
- 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
- G01F1/50—Correcting or compensating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L15/00—Devices or apparatus for measuring two or more fluid pressure values simultaneously
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
- G01L9/125—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor with temperature compensating means
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Abstract
Description
Claims (19)
- プロセス流体の圧力を測定するためのプロセス変数トランスミッタであって、
第1のプロセス圧力に結合するように構成された第1のポートと、第2のプロセス圧力に結合するように構成された第2のポートとを有するプロセス継手と、
前記第1の圧力と前記第2の圧力との間の差圧に関連する出力を有する前記第1及び第2の各ポートに結合された差圧センサと、
前記第1及び第2の各圧力に関連する出力を有するそれぞれの第1及び第2の各ポートに結合された第1及び第2の各圧力センサと、
前記差圧センサからの前記出力にもとづいてトランスミッタ出力を提供し、前記第1及び第2の各圧力にもとづいて拡張させた機能をさらに提供するように構成されたトランスミッタ回路とを含み、
前記第1及び第2の各圧力センサが、内部に形成されたキャビティを有する脆性材料からなり、前記第1及び第2の各圧力センサからの前記各出力が、キャビティの変形に関連する、トランスミッタ。 - 前記トランスミッタが、前記第1及び第2の各圧力センサからの前記各出力にもとづいて差圧を算出するように構成される、請求項1記載のプロセス変数トランスミッタ。
- 前記第1の圧力センサの前記第1のポートに、及び前記差圧センサに結合される管を含む、請求項1記載のプロセス変数トランスミッタ。
- 前記管が延長部を含み、前記第1の圧力センサが前記延長部の遠位端に取り付けられる、請求項3記載のプロセス変数トランスミッタ。
- 前記第1及び第2の各圧力センサが、前記差圧センサの周波数応答よりも高い周波数応答を有する、請求項1記載のプロセス変数トランスミッタ。
- 前記第1及び第2の各圧力センサが、前記差圧センサの最大動作圧力よりも高い各圧力で動作するように構成され、前記トランスミッタ回路が、前記第1及び第2の各圧力センサにもとづいてトランスミッタ出力を提供し、それによって前記プロセス変数トランスミッタに拡張された測定レンジを提供するように構成される、請求項1記載のプロセス変数トランスミッタ。
- 前記差圧センサが品質低下している場合、前記トランスミッタ回路が、前記第1の圧力センサからの前記出力と、前記第2の圧力センサからの前記出力との間の差異にもとづいて差圧出力を提供するように構成される、請求項1記載のプロセス変数トランスミッタ。
- 前記第1の圧力センサが、前記管内に延長し、ロウ付けによって前記第1の圧力センサにシールされる、請求項3記載のプロセス変数トランスミッタ。
- 前記拡張させた機能が、詰まりのあるラインを検出することを含む、請求項1記載のプロセス変数トランスミッタ。
- 前記拡張させた機能が、前記第1及び第2の各圧力センサによって検知された信号の周波数にもとづく、請求項1記載のプロセス変数トランスミッタ。
- 前記拡張させた機能が、前記第1及び第2の各圧力センサからの出力にもとづいて、前記差圧センサを較正することを含む、請求項1記載のプロセス変数トランスミッタ。
- プロセス変数トランスミッタ内でプロセス流体の圧力を測定する方法であって、
第1の管を第1のプロセス圧力に結合させることと、
第2の管を第2のプロセス圧力に結合させることと、
前記第1及び第2の各管間に結合された差圧センサを用いて、前記第1のプロセス圧力と前記第2のプロセス圧力との間の差圧を検知することと、
前記第1の管を通して前記第1のプロセス圧力に結合された第1の圧力センサで、前記第1のプロセス圧力を検知することと、
前記第2の管を通して前記第2のプロセス圧力に結合された第2の圧力センサで、前記第2のプロセス圧力を検知することと、
前記差圧センサによって検知された前記差圧に関連するトランスミッタ出力を提供することと、
前記第1及び第2の各圧力センサからの各出力にもとづいて、前記プロセス変数トランスミッタに拡張させた機能を行うこととを含み、
前記第1の圧力センサが、内部に形成されたキャビティを有する脆性材料からなり、前記第1の圧力センサからの前記出力が、前記キャビティの変形に関連する、方法。 - 前記第1及び第2の各圧力センサからの前記各出力にもとづいて差圧を算出する、請求項12記載の方法。
- 前記第1の管が延長部を含み、前記第1の圧力センサが前記延長部の遠位端に取り付けられる、請求項12記載の方法。
- 前記第1及び第2の各圧力センサが、前記差圧センサの周波数応答よりも高い周波数応答を有し、診断が、検知された周波数にもとづく、請求項12記載の方法。
- 前記検知された第1及び第2の各圧力にもとづいて、ラインの詰まりを検出することを含む、請求項12記載の方法。
- 前記検知された第1及び第2の各圧力にもとづいて、前記差圧センサの動作を診断することを含む、請求項12記載の方法。
- 前記差圧センサが品質低下している場合、前記検知された第1及び第2の各圧力にもとづいて差圧を検知することを含む、請求項12記載の方法。
- 前記検知された第1及び第2の各圧力にもとづいて、前記差圧センサを較正することを含む、請求項12記載の方法。
Applications Claiming Priority (3)
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US12/834,245 US8132464B2 (en) | 2010-07-12 | 2010-07-12 | Differential pressure transmitter with complimentary dual absolute pressure sensors |
US12/834,245 | 2010-07-12 | ||
PCT/US2011/038692 WO2012009062A1 (en) | 2010-07-12 | 2011-06-01 | Differential pressure transmitter with complimentary dual absolute pressure sensors |
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JP2013531255A true JP2013531255A (ja) | 2013-08-01 |
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US (1) | US8132464B2 (ja) |
EP (1) | EP2593766B1 (ja) |
JP (1) | JP5923500B2 (ja) |
CN (2) | CN202188933U (ja) |
BR (1) | BR112013000382A2 (ja) |
CA (1) | CA2804458C (ja) |
MX (1) | MX2013000351A (ja) |
RU (1) | RU2531849C1 (ja) |
WO (1) | WO2012009062A1 (ja) |
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JP2015520400A (ja) * | 2012-06-19 | 2015-07-16 | ローズマウント インコーポレイテッド | 圧力センサを有する差圧伝送器 |
JP2016532084A (ja) * | 2013-09-26 | 2016-10-13 | ローズマウント インコーポレイテッド | 高圧用途向けの多変数プロセス流体伝送器 |
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JP2017142239A (ja) * | 2016-02-10 | 2017-08-17 | センサタ テクノロジーズ インコーポレイテッド | 2つのmems検知エレメントを用いて差圧および絶対圧力を測定するためのシステム、デバイスおよび方法 |
JP2022544962A (ja) * | 2019-08-12 | 2022-10-24 | 聯合汽車電子有限公司 | 圧力センサ |
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RU2531849C1 (ru) | 2014-10-27 |
RU2013105702A (ru) | 2014-09-27 |
US20120006119A1 (en) | 2012-01-12 |
CN102331324A (zh) | 2012-01-25 |
EP2593766B1 (en) | 2018-11-14 |
CA2804458C (en) | 2015-11-03 |
WO2012009062A1 (en) | 2012-01-19 |
US8132464B2 (en) | 2012-03-13 |
CN102331324B (zh) | 2016-03-02 |
CA2804458A1 (en) | 2012-01-19 |
EP2593766A1 (en) | 2013-05-22 |
CN202188933U (zh) | 2012-04-11 |
JP5923500B2 (ja) | 2016-05-24 |
MX2013000351A (es) | 2013-03-22 |
BR112013000382A2 (pt) | 2016-06-07 |
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