EP1514087A1 - Druckmesseinheit - Google Patents
DruckmesseinheitInfo
- Publication number
- EP1514087A1 EP1514087A1 EP03760621A EP03760621A EP1514087A1 EP 1514087 A1 EP1514087 A1 EP 1514087A1 EP 03760621 A EP03760621 A EP 03760621A EP 03760621 A EP03760621 A EP 03760621A EP 1514087 A1 EP1514087 A1 EP 1514087A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- housing
- pressure measuring
- measuring unit
- pressure sensor
- 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- Withdrawn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
- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 33
- 238000005259 measurement Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0627—Protection against aggressive medium in general
-
- 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
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
- G01L9/0075—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
Definitions
- the pressure sensor is a differential pressure measuring cell
- the housing has two side flanges, between which the pressure sensor is clamped, and surfaces of the side flanges which come into contact with the medium at the measuring location are provided with a coating of enamel or of a glass-like material.
- FIG 3 shows a section through a pressure measuring unit according to the invention with a differential pressure sensor enclosed between two side flanges.
- the housing 1 is e.g. made of a very inexpensive steel or stainless steel compared to special materials.
- the ceramic pressure sensor 1 is in the illustrated embodiment an absolute pressure measuring cell consisting of a base body 3 and one on the Base body 3 arranged pressure-sensitive membrane 5.
- the base body 3 is made of ceramic, such as aluminum oxide (Al 2 O 3 ).
- the membrane 5 can also consist of ceramic or be made of glass or sapphire, for example.
- the membrane 5 and the base body 3 are connected at their edge to form a measuring chamber 7 by means of a joint 9 in a pressure-tight and gas-tight manner.
- the membrane 5 is sensitive to pressure, ie a pressure p acting on it causes the membrane 5 to deflect from its rest position.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10227479A DE10227479A1 (de) | 2002-06-19 | 2002-06-19 | Druckmeßgerät |
| DE10227479 | 2002-06-19 | ||
| PCT/EP2003/006311 WO2004001359A1 (de) | 2002-06-19 | 2003-06-16 | Druckmesseinheit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1514087A1 true EP1514087A1 (de) | 2005-03-16 |
Family
ID=29719276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03760621A Withdrawn EP1514087A1 (de) | 2002-06-19 | 2003-06-16 | Druckmesseinheit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20060053893A1 (de) |
| EP (1) | EP1514087A1 (de) |
| CN (1) | CN100350231C (de) |
| AU (1) | AU2003242709A1 (de) |
| DE (1) | DE10227479A1 (de) |
| RU (1) | RU2292020C2 (de) |
| WO (1) | WO2004001359A1 (de) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6907023B2 (en) | 2000-08-14 | 2005-06-14 | Vesuvius, Inc. | Communique system with dynamic bandwidth allocation in cellular communication networks |
| DE102004019389A1 (de) * | 2004-04-19 | 2005-11-03 | Endress + Hauser Gmbh + Co. Kg | Druckaufnehmer mit austauschbarem Prozessanschluss |
| DE102004031582A1 (de) * | 2004-06-29 | 2006-02-09 | Endress + Hauser Gmbh + Co. Kg | Duckaufnehmer |
| US7240561B2 (en) | 2004-09-29 | 2007-07-10 | Rosemount Inc. | Process adapter |
| DE102005028395A1 (de) | 2005-06-20 | 2006-12-28 | Vega Grieshaber Kg | Füllstands- oder Drucksensor mit antiadhäsiver Schicht |
| WO2008058406A1 (de) * | 2006-11-13 | 2008-05-22 | Inficon Gmbh | Vakuummembranmesszelle und verfahren zur herstellung einer derartigen messzelle |
| DE102008043175A1 (de) * | 2008-10-24 | 2010-04-29 | Endress + Hauser Gmbh + Co. Kg | Relativdrucksensor |
| US8704538B2 (en) * | 2010-07-01 | 2014-04-22 | Mks Instruments, Inc. | Capacitance sensors |
| DE102010043043A1 (de) * | 2010-10-28 | 2012-05-03 | Endress + Hauser Gmbh + Co. Kg | Druckmesswandler |
| DE102011004722A1 (de) * | 2011-02-25 | 2012-08-30 | Endress + Hauser Gmbh + Co. Kg | Keramische Druckmesszelle |
| EP2574895B1 (de) * | 2011-09-28 | 2016-08-31 | VEGA Grieshaber KG | Messanordnung für die Prozessmesstechnik mit einem Universal-Prozessanschluss |
| DE102011084612A1 (de) * | 2011-10-17 | 2013-04-18 | Endress + Hauser Gmbh + Co. Kg | Keramische Druckmesszelle mit kapazitivem Wandler |
| US20150096369A1 (en) * | 2013-10-04 | 2015-04-09 | Ultra Analytical Group, LLC | Apparatus, System and Method for Measuring the Properties of a Corrosive Liquid |
| US20150096804A1 (en) * | 2013-10-04 | 2015-04-09 | Ultra Analytical Group, LLC | Apparatus, System and Method for Measuring the Properties of a Corrosive Liquid |
| DE102013114407A1 (de) * | 2013-12-18 | 2015-06-18 | Endress + Hauser Gmbh + Co. Kg | Drucksensor |
| DE102014104831A1 (de) * | 2014-04-04 | 2015-10-08 | Endress + Hauser Gmbh + Co. Kg | Differenzdrucksensor |
| JP2017003511A (ja) * | 2015-06-15 | 2017-01-05 | 富士電機株式会社 | センサ装置およびその製造方法 |
| DE102015122220A1 (de) * | 2015-12-18 | 2017-06-22 | Endress + Hauser Gmbh + Co. Kg | Keramische Druckmesszelle mit mindestens einem Temperaturmesswandler und Druckmessaufnehmer mit einer solchen Druckmesszelle |
| DE102017124308A1 (de) | 2017-10-18 | 2019-04-18 | Endress+Hauser SE+Co. KG | Austauschbare Prozessdichtung für einen Druckmessaufnehmer |
| DE102018114300A1 (de) | 2018-06-14 | 2019-12-19 | Endress+Hauser SE+Co. KG | Druckmesseinrichtung und Verfahren zu deren Herstellung |
| CN110265543B (zh) * | 2019-06-17 | 2022-08-02 | 中北大学 | 差动电容式陶瓷耐高温压敏芯片 |
| US11692895B2 (en) | 2021-03-30 | 2023-07-04 | Rosemount Aerospace Inc. | Differential pressure sensor |
| DE102021133184A1 (de) | 2021-12-15 | 2023-06-15 | Endress+Hauser SE+Co. KG | Druckmessaufnehmer und Differenzdruckmessaufnehmer |
| DE102022119143A1 (de) * | 2022-07-29 | 2024-02-01 | Endress+Hauser Flowtec Ag | Edelstahlprodukt, Feldgerät und Verfahren zur Herstellung |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859575A (en) * | 1974-02-11 | 1975-01-07 | Lee Shih Ying | Variable capacitance sensor |
| SU529384A1 (ru) * | 1975-04-25 | 1976-09-25 | Предприятие П/Я М-5539 | Датчик давлени |
| US4507973A (en) * | 1983-08-31 | 1985-04-02 | Borg-Warner Corporation | Housing for capacitive pressure sensor |
| DE3528520A1 (de) * | 1985-08-08 | 1987-02-19 | Bosch Gmbh Robert | Druckmessdose |
| DE3912217A1 (de) * | 1989-04-13 | 1990-10-18 | Endress Hauser Gmbh Co | Drucksensor |
| US5134887A (en) * | 1989-09-22 | 1992-08-04 | Bell Robert L | Pressure sensors |
| KR0163443B1 (ko) * | 1991-07-04 | 1999-03-30 | 나까오 다께시 | 압력측정장치 |
| JPH05157649A (ja) * | 1991-12-02 | 1993-06-25 | Yoshito Takehana | 高耐蝕性圧力センサ |
| DE59202616D1 (de) * | 1991-12-24 | 1995-07-27 | Landis & Gry Tech Innovat Ag | Drucksensor mit einer Membran aus Halbleitermaterial. |
| DE4231120C2 (de) * | 1992-09-17 | 2002-01-24 | Mannesmann Vdo Ag | Drucksensor |
| DE59306394D1 (de) * | 1993-01-20 | 1997-06-12 | Wika Alexander Wiegand Gmbh | Druckmittler |
| JPH0843229A (ja) * | 1994-08-02 | 1996-02-16 | Yamatake Honeywell Co Ltd | 圧力測定装置 |
| DK0723143T3 (da) * | 1995-01-12 | 1999-03-01 | Endress Hauser Gmbh Co | Indretning til måling af tryk eller differenstryk |
| US5889211A (en) * | 1995-04-03 | 1999-03-30 | Motorola, Inc. | Media compatible microsensor structure and methods of manufacturing and using the same |
| US6140144A (en) * | 1996-08-08 | 2000-10-31 | Integrated Sensing Systems, Inc. | Method for packaging microsensors |
| DE19816941A1 (de) * | 1998-04-16 | 1999-10-21 | Viessmann Werke Kg | Temperatursensor und Verfahren zu seiner Herstellung |
| US6363790B1 (en) * | 1998-10-23 | 2002-04-02 | Endress + Hauser Gmbh + Co. | Pressure sensor |
| US6295875B1 (en) * | 1999-05-14 | 2001-10-02 | Rosemount Inc. | Process pressure measurement devices with improved error compensation |
-
2002
- 2002-06-19 DE DE10227479A patent/DE10227479A1/de not_active Withdrawn
-
2003
- 2003-06-16 US US10/517,307 patent/US20060053893A1/en not_active Abandoned
- 2003-06-16 CN CNB038144530A patent/CN100350231C/zh not_active Expired - Fee Related
- 2003-06-16 RU RU2005101079/28A patent/RU2292020C2/ru not_active IP Right Cessation
- 2003-06-16 WO PCT/EP2003/006311 patent/WO2004001359A1/de not_active Ceased
- 2003-06-16 EP EP03760621A patent/EP1514087A1/de not_active Withdrawn
- 2003-06-16 AU AU2003242709A patent/AU2003242709A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004001359A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2005101079A (ru) | 2005-08-10 |
| AU2003242709A1 (en) | 2004-01-06 |
| WO2004001359A1 (de) | 2003-12-31 |
| CN1662799A (zh) | 2005-08-31 |
| CN100350231C (zh) | 2007-11-21 |
| RU2292020C2 (ru) | 2007-01-20 |
| US20060053893A1 (en) | 2006-03-16 |
| DE10227479A1 (de) | 2004-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20041223 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ROSSKOPF, BERND Inventor name: BANHOLZER, KARL-HEINZ |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BANHOLZER, KARL-HEINZ Inventor name: ROSSKOPF, BERND |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20100105 |