JP4933972B2 - デュアル圧力センサ - Google Patents
デュアル圧力センサ Download PDFInfo
- Publication number
- JP4933972B2 JP4933972B2 JP2007192378A JP2007192378A JP4933972B2 JP 4933972 B2 JP4933972 B2 JP 4933972B2 JP 2007192378 A JP2007192378 A JP 2007192378A JP 2007192378 A JP2007192378 A JP 2007192378A JP 4933972 B2 JP4933972 B2 JP 4933972B2
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- JP
- Japan
- Prior art keywords
- pressure
- pressure sensor
- measured
- pedestal
- sensitive diaphragm
- 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.)
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Classifications
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- 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
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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
-
- 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
- G01F1/40—Details of construction of the flow constriction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/0038—Fluidic connecting means being part of the housing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Description
また、2つの圧力センサユニットは個々に独立しているため、いずれか一方の圧力センサユニットが故障した場合、その圧力センサユニットのみを新しい圧力センサユニットと交換するだけでよく、デュアル圧力センサ全体を新しいものと交換する必要がない。
図1(a)、(b)、(c)は本発明に係るデュアル圧力センサの正面図、平面図および側面図、図2は図1のII−II線断面図、図3は図2のIII −III 線平面図である。これらの図において、全体を参照符号1で示すデュアル圧力センサは、気密容器2と、この気密容器内2に収納された2つの圧力センサユニット3A、3Bと、基板4等を備えている。
被測定圧力P1 を補正するための回路で、回路内に測温抵抗素子を有し、この測温抵抗素子の抵抗値に基づいて被測定圧力P1 を補正するものであり、前記台座本体15A−1の上面に固着され、感圧ダイヤフラムチップ16Aにボンディングワイヤ26aを介して電気的に接続されている。
ただし、Aは定数、ΔPは流体の上流側と下流側の圧力差である。
一般に固定オリフィスを用いた差圧式流量計測に比べ、流量制御弁の開度に応じて絞り効果が変わるために幅広い流量の測定が可能になる。また、流量制御弁部の配管圧力が判るため、流量を測定する他に圧力異常などの診断にもその情報を利用することができる。
Claims (1)
- 2つの被測定圧力を検出するデュアル圧力センサにおいて、
2つの挿通孔を有し内部が圧力基準室を形成する気密容器と、
前記圧力基準室内に並設され2つの被測定圧力を検出する2つの圧力センサユニットとを備え、
前記2つの圧力センサユニットは、それぞれ台座と、前記被測定圧力がそれぞれ印加されることによりダイヤフラムの変位を電気信号に変換し前記被測定圧力をそれぞれ検出する感圧ダイヤフラムチップとからなり、
前記各圧力センサユニットの台座は、それぞれ上面に小孔を有するとともに内部がそれぞれ連通路を形成し、前記感圧ダイヤフラムチップが前記小孔をそれぞれ塞ぐように固着された台座本体と、これらの台座本体に一体に突設され前記連通路に連通する圧力導入孔とをそれぞれ有し、一端が前記挿通孔から前記気密容器の外部にそれぞれ突出し、前記連通路を介して各被測定圧力を前記各感圧ダイヤフラムチップのダイヤフラムにそれぞれ導く圧力導入部とからなり、
前記台座本体の互いに対向する側面どうしが接触していることを特徴とするデュアル圧力センサ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007192378A JP4933972B2 (ja) | 2007-07-24 | 2007-07-24 | デュアル圧力センサ |
KR1020097025167A KR101152086B1 (ko) | 2007-07-24 | 2008-07-23 | 듀얼 압력 센서 |
US12/670,035 US7980137B2 (en) | 2007-07-24 | 2008-07-23 | Dual pressure sensor |
PCT/JP2008/063161 WO2009014134A1 (ja) | 2007-07-24 | 2008-07-23 | デュアル圧力センサ |
CN2008800254477A CN101755197B (zh) | 2007-07-24 | 2008-07-23 | 双压力传感器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007192378A JP4933972B2 (ja) | 2007-07-24 | 2007-07-24 | デュアル圧力センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009031003A JP2009031003A (ja) | 2009-02-12 |
JP4933972B2 true JP4933972B2 (ja) | 2012-05-16 |
Family
ID=40281384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007192378A Active JP4933972B2 (ja) | 2007-07-24 | 2007-07-24 | デュアル圧力センサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7980137B2 (ja) |
JP (1) | JP4933972B2 (ja) |
KR (1) | KR101152086B1 (ja) |
CN (1) | CN101755197B (ja) |
WO (1) | WO2009014134A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5548531B2 (ja) | 2010-06-17 | 2014-07-16 | アズビル株式会社 | デュアル物理量センサ |
JP2012002741A (ja) * | 2010-06-18 | 2012-01-05 | Yamatake Corp | 物理量センサ |
JP5441845B2 (ja) * | 2010-07-09 | 2014-03-12 | アズビル株式会社 | デュアル圧力センサ及び流量制御弁 |
US9784633B2 (en) * | 2010-11-03 | 2017-10-10 | Avgi Engineering, Inc. | Differential pressure transmitter with intrinsic verification |
US10466127B2 (en) | 2010-11-03 | 2019-11-05 | Avgi Engineering, Inc. | Differential pressure transmitter with intrinsic verification |
JP2014006138A (ja) * | 2012-06-25 | 2014-01-16 | Hitachi Automotive Systems Ltd | 圧力センサ装置 |
US9116057B2 (en) * | 2013-02-27 | 2015-08-25 | Honeywell International Inc. | Integrated reference vacuum pressure sensor with atomic layer deposition coated input port |
US9423315B2 (en) | 2013-10-15 | 2016-08-23 | Rosemount Aerospace Inc. | Duplex pressure transducers |
WO2015148533A1 (en) * | 2014-03-24 | 2015-10-01 | Arkis Biosciences | An implantable dual sensor bio-pressure transponder and method of calibration |
JP2016161508A (ja) * | 2015-03-04 | 2016-09-05 | セイコーエプソン株式会社 | 圧力センサー、携帯機器、電子機器および移動体 |
US9970837B2 (en) * | 2015-06-30 | 2018-05-15 | Kidde Technologies Inc. | Detector utilizing an adjustment screw and a bellows |
CN106323539B (zh) * | 2016-09-23 | 2022-07-22 | 上海立格仪表有限公司 | 一种传感器基座 |
FR3090869B1 (fr) * | 2018-12-20 | 2022-04-29 | Sc2N Sa | Capteur de pression à la pression atmosphérique |
DE102021101883A1 (de) * | 2021-01-28 | 2022-07-28 | Sick Ag | Drucksensor |
CN115165171A (zh) * | 2022-08-04 | 2022-10-11 | 上海摩仑工业技术有限公司 | 一种介质隔离的应变片式差压压力传感器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4131088A (en) * | 1976-11-08 | 1978-12-26 | The Bendix Corporation | Multiple function pressure sensor |
US4177680A (en) | 1977-10-14 | 1979-12-11 | Bunker Ramo Corporation | Dual pressure sensor |
JPH0534229A (ja) * | 1991-08-02 | 1993-02-09 | Hitachi Constr Mach Co Ltd | 差圧センサの検出信号処理回路 |
JPH0552691A (ja) | 1991-08-22 | 1993-03-02 | Fuji Electric Co Ltd | 半導体圧力センサ |
JP2928751B2 (ja) * | 1995-11-10 | 1999-08-03 | シーケーディ株式会社 | ゲージ圧測定装置 |
US6000427A (en) | 1998-10-19 | 1999-12-14 | Hutton; Peter B. | Manifold for use with dual pressure sensor units |
JP4044307B2 (ja) * | 2001-08-01 | 2008-02-06 | 株式会社山武 | 圧力センサ |
CN2575641Y (zh) * | 2002-10-30 | 2003-09-24 | 中国船舶重工集团公司第七研究院第七一一研究所 | 压力压差同步指示表 |
US7007552B2 (en) | 2004-07-26 | 2006-03-07 | Texas Instruments Incorporated | Multi-channel pressure sensing apparatus |
US7497124B2 (en) * | 2007-04-20 | 2009-03-03 | Delphi Technologies, Inc. | Dual pressure sensor apparatus |
-
2007
- 2007-07-24 JP JP2007192378A patent/JP4933972B2/ja active Active
-
2008
- 2008-07-23 CN CN2008800254477A patent/CN101755197B/zh active Active
- 2008-07-23 WO PCT/JP2008/063161 patent/WO2009014134A1/ja active Application Filing
- 2008-07-23 US US12/670,035 patent/US7980137B2/en active Active
- 2008-07-23 KR KR1020097025167A patent/KR101152086B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
US20100218612A1 (en) | 2010-09-02 |
WO2009014134A1 (ja) | 2009-01-29 |
JP2009031003A (ja) | 2009-02-12 |
KR20100004118A (ko) | 2010-01-12 |
CN101755197B (zh) | 2012-10-10 |
US7980137B2 (en) | 2011-07-19 |
KR101152086B1 (ko) | 2012-06-11 |
CN101755197A (zh) | 2010-06-23 |
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