EP1305577A1 - Dispositif pour mesurer/determiner une grandeur physique d'un support - Google Patents
Dispositif pour mesurer/determiner une grandeur physique d'un supportInfo
- Publication number
- EP1305577A1 EP1305577A1 EP01967220A EP01967220A EP1305577A1 EP 1305577 A1 EP1305577 A1 EP 1305577A1 EP 01967220 A EP01967220 A EP 01967220A EP 01967220 A EP01967220 A EP 01967220A EP 1305577 A1 EP1305577 A1 EP 1305577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- fuel cell
- remote control
- control point
- physical quantity
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
Definitions
- the invention relates to a device for measuring / determining a physical size of a medium, the device having a sensor part and an electronic part.
- the filling level of a filling material in a container is determined over the transit time of ultrasonic waves or of electromagnetic waves, in particular of microwaves, which are reflected on the surface of the filling material.
- microwaves these are either radiated freely into the container in the direction of the surface of the filling material, or the microwaves are guided into the container along a conductive element.
- capacitive and radiometric measuring methods are used for level measurement.
- the resonance frequency of a vibrating rod or an oscillatable structure consisting of several vibrating rods is preferably evaluated. This measurement method takes advantage of the effect that the resonance frequency is different, depending on whether the vibrating rods execute their vibrations freely or in contact with the product.
- the invention is based on the object of proposing an inexpensive device for measuring and / or determining a physical measured variable.
- the object is achieved in that at least the electronic part is arranged in a housing and in that at least one fuel cell is provided, via which the energy requirement of the device is at least partially covered.
- Fuel cells as such are state of the art. For example, hydrogen and oxygen are used as reaction gases. These are separated from each other by a very thin proton-conducting membrane, which has a thin platinum coating on both sides. This membrane also supports the generation of electrical energy because it breaks down the hydrogen into protons and electrons. The protons migrate through the membrane to oxygen and combine with the oxygen to form water. The membrane is impermeable to the electrons. Due to the excess of electrons on the hydrogen side and the lack of electrons on the oxygen side, positive and negative poles are formed. If the two are connected to one another, an electrical current flows which can be used to operate the device.
- the advantage of the device according to the invention is that the measuring device no longer has to be wired or wired. This has a particularly positive effect if the measuring device according to the invention is used in the Ex area, where the cabling / wiring must also also comply with the respectively prescribed standards. It goes without saying, therefore, that by saving the wiring a considerable reduction in the cost per measuring point is achieved.
- the physical measured variable is, for example, the fill level, the density, the pressure, the flow, the temperature or the chemical composition of a process medium.
- the at least one fuel cell is arranged in the housing, in which the sensor part is integrated in addition to the electronics part.
- the sensor part is integrated in addition to the electronics part.
- the at least one fuel cell z. B. can also be arranged in the housing in which the electronic part is housed.
- the installation of the fuel cell (s) depends on whether the measuring device is a compact sensor, in which the sensor part and electronic part are integrated in one unit, or whether the sensor part is spatially separated from the electronic part. In the latter case, it is of course sensible to provide the at least one fuel cell in the immediate vicinity of the electronic part, since the energy is usually consumed here.
- the unit containing the electronic part is more easily accessible from the outside than the sensor part arranged in the process medium or in the vicinity of the process medium, which of course considerably simplifies the charging of the fuel cell (s).
- An advantageous development of the device according to the invention provides a data line via which the measurement data, which reflect the physical quantity, are transmitted to a remote control point.
- a microprocessor is provided which is arranged in the housing and which evaluates the measurement data of the physical variable and transmits the information via the data line to the remote control point and / or which communicates with the remote control point via the data line.
- An alternative embodiment of the device according to the invention proposes that a transmitter / receiver unit be arranged in the housing, the transmitter / receiver unit wirelessly transmitting the measurement data of the physical quantity to the remote control point and / or the transmitter / receiver unit wirelessly with the remote control unit Control body communicates.
- a transmitter / receiver unit be arranged in the housing, the transmitter / receiver unit wirelessly transmitting the measurement data of the physical quantity to the remote control point and / or the transmitter / receiver unit wirelessly with the remote control unit Control body communicates.
- the device according to the invention is therefore a completely self-sufficient system.
- the measuring device can of course be installed very easily on the one hand; on the other hand, the wiring can be saved completely.
- the measuring device is preferably designed such that the customer can no longer open it. This measure makes it possible to avoid complex housing constructions, which are usually used to isolate the externally accessible measuring device from external influences. This configuration of the measuring device is made possible in particular by the fact that there are no longer any cables and consequently no cable bushings on the measuring device. Due to the simplified construction of the measuring device, the manufacturing costs can be reduced considerably.
- an advantageous embodiment of the device according to the invention also provides that the housing is an encapsulated housing.
- one embodiment of the device according to the invention proposes that the microprocessor issues a warning / error message as soon as the at least one fuel cell reaches a predetermined threshold value, this threshold value being determined in such a way that the energy reserve the fuel cell is only sufficient for a limited period of time. Furthermore, a control loop is provided which ensures that the energy supplied by the fuel cell is made available depending on the respective power requirement.
- a charging unit is provided, via which the at least one fuel cell can be charged.
- the charging unit is a syringe. This makes it possible to charge the fuel cell in a very short time. Downtimes of the measuring device can be completely ruled out.
- FIG. 3 shows a schematic representation of a third embodiment of the device according to the invention.
- Fig. 1 shows a schematic representation of a first embodiment of the device according to the invention.
- the measuring device is a so-called compact sensor, in which the sensor part 2 and the electronics part 3 are accommodated in a housing 7.
- the data and information exchange with a remotely located control point 8 takes place via the data lines 5, 6.
- the energy supply of the device 1 is ensured via the fuel cell 4, which is also provided in the housing 7.
- the microprocessor 10 monitors, among other things. the current state of charge of the fuel cell 4. As soon as the energy supply is only ensured for a defined limited period of time, an error message and / or a warning signal are / are output which indicate to the operating personnel that the fuel cell 4 must be charged. In the simplest case, the fuel cell 4 is charged by means of a syringe 9.
- the sensor part 2 shows a schematic illustration of a second embodiment of the device 1 according to the invention.
- the sensor part 2 and the electronics part 3 are accommodated in two spatially separate housings.
- the sensor part 2 is positioned so that it comes into contact with the process medium, while the electronics part 3 is arranged outside the container in which the process medium to be measured or monitored is located.
- the data and information exchange of the measuring device 1 with the remote control point 8 takes place in this embodiment by radio.
- both the measuring device 1 and the remote control point 8 are each assigned a transmitting / receiving unit 11, 12.
- the measuring device 1 is a vibration detector for the point level detection of the fill level of a filling material in a container.
- such sensors detect the fill level on the basis of a change in the resonance frequency of an oscillatable structure.
- the structure capable of oscillation is two oscillating rods 13, 14 which are arranged in the form of a tuning fork.
- vibration detectors are well known from the prior art and are sold by the applicant, for example under the name "Liquiphant".
- measuring device 1 is shown in Fig. 3. This embodiment is an autonomous system, since no wiring / cabling connecting the measuring device 1 to other units is provided.
- measuring device 1 is a compact sensor: sensor part 2 and electronics part 3 are arranged in a housing 7.
- the measuring device 1 is supplied with energy via the fuel cell 4, which is likewise arranged in the housing 7.
- the data and information exchange with the control point 8 takes place wirelessly via radio.
- the measuring device 1 can of course be installed very easily on the one hand; on the other hand, the expensive wiring / cabling can be dispensed with entirely.
- the housing 7 can be of a very simple construction; both simplifications are reflected in reduced manufacturing costs.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Fuel Cell (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10037911A DE10037911A1 (de) | 2000-08-03 | 2000-08-03 | Vorrichtung zum Messen/Bestimmen einer physikalischen Grösse eines Mediums |
DE10037911 | 2000-08-03 | ||
PCT/EP2001/008569 WO2002012834A1 (fr) | 2000-08-03 | 2001-07-25 | Dispositif pour mesurer/determiner une grandeur physique d'un support |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1305577A1 true EP1305577A1 (fr) | 2003-05-02 |
Family
ID=7651235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01967220A Ceased EP1305577A1 (fr) | 2000-08-03 | 2001-07-25 | Dispositif pour mesurer/determiner une grandeur physique d'un support |
Country Status (9)
Country | Link |
---|---|
US (1) | US8029731B2 (fr) |
EP (1) | EP1305577A1 (fr) |
JP (1) | JP3851268B2 (fr) |
CN (1) | CN1232802C (fr) |
AU (1) | AU2001287651A1 (fr) |
CA (1) | CA2417886C (fr) |
DE (1) | DE10037911A1 (fr) |
EA (1) | EA005899B1 (fr) |
WO (1) | WO2002012834A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10236226A1 (de) * | 2002-08-07 | 2004-02-26 | Endress + Hauser (Deutschland) Holding Gmbh | Vorrichtung zur Bestimmung und/oder Überwachung einer physikalischen oder chemischen Größe |
WO2004082054A1 (fr) * | 2003-03-12 | 2004-09-23 | Abb Research Ltd. | Ensemble et procede pour l'alimentation en energie electrique sans fil d'un appareil de terrain dans une installation industrielle |
DE10346145B4 (de) * | 2003-10-01 | 2005-09-22 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung der Schichtdicke eines flüssigen Mediums |
CN100350658C (zh) * | 2004-09-29 | 2007-11-21 | 胜光科技股份有限公司 | 用于燃料电池***中测量燃料容量的测量装置 |
DE102009002009A1 (de) * | 2009-03-31 | 2010-10-07 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Reduzierung bzw. Minimierung von Störsignalen bei einem Feldgerät der Prozessautomatisierung |
CN102869955B (zh) * | 2010-02-19 | 2016-06-15 | 威易拉有限公司 | 无线传感器单元和用于无线传感器的维护方法 |
DE102012200757B4 (de) | 2012-01-05 | 2022-01-05 | Vitesco Technologies GmbH | Füllstandsgeber |
CN104125248A (zh) * | 2013-04-25 | 2014-10-29 | 成都技高科技有限公司 | 水资源监测终端 |
CN105225456A (zh) * | 2015-10-23 | 2016-01-06 | 哈尔滨朋来科技开发有限公司 | 一种无线湿敏探测器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203546A (en) * | 1984-11-30 | 1988-10-19 | Robert James Redding | An ultrasonic transducer for gas flow metering apparatus |
US5421193A (en) * | 1993-12-30 | 1995-06-06 | Proeco, Inc. | Method and apparatus for leak detection with float excitation and self-calibration |
WO1999060540A1 (fr) * | 1998-05-20 | 1999-11-25 | Advanced Technology Materials, Inc. | Dispositif detecteur de fuites pour appareil a recipient a fluide |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3342558A (en) * | 1962-04-18 | 1967-09-19 | Phillips Petroleum Co | Electrical measuring system utilizing a fuel cell |
GB1554668A (en) * | 1977-02-23 | 1979-10-24 | Secr Defence | Water activated batteries |
US4627445A (en) * | 1985-04-08 | 1986-12-09 | Garid, Inc. | Glucose medical monitoring system |
US5279294A (en) * | 1985-04-08 | 1994-01-18 | Cascade Medical, Inc. | Medical diagnostic system |
EP0215669A3 (fr) * | 1985-09-17 | 1989-08-30 | Seiko Instruments Inc. | Diagnostique et procédé d'analyse de composés biochimiques, microbes et cellules |
US5296374A (en) * | 1989-10-20 | 1994-03-22 | University Of Strathclyde | Apparatus for assessing a particular property in a medium |
DE19501013A1 (de) * | 1995-01-14 | 1996-07-18 | Hans Dr Kolb | Energieversorgung für elektronische Gasmeßgeräte |
US5763113A (en) * | 1996-08-26 | 1998-06-09 | General Motors Corporation | PEM fuel cell monitoring system |
US5796345A (en) * | 1997-01-13 | 1998-08-18 | Leventis; Nicholas | Apparatus for detecting moisture in garments |
US6076392A (en) * | 1997-08-18 | 2000-06-20 | Metasensors, Inc. | Method and apparatus for real time gas analysis |
US6217744B1 (en) * | 1998-12-18 | 2001-04-17 | Peter Crosby | Devices for testing fluid |
DE19929343A1 (de) * | 1999-06-26 | 2000-12-28 | Abb Research Ltd | Anordnung zur drahtlosen Versorgung einer Vielzahl Sensoren und/oder Aktoren mit elektrischer Energie, Sensor oder Aktor hierzu sowie System für eine eine Vielzahl von Sensoren und/oder Aktoren aufweisende Maschine |
-
2000
- 2000-08-03 DE DE10037911A patent/DE10037911A1/de not_active Withdrawn
-
2001
- 2001-07-25 EP EP01967220A patent/EP1305577A1/fr not_active Ceased
- 2001-07-25 CN CN01813160.3A patent/CN1232802C/zh not_active Expired - Fee Related
- 2001-07-25 JP JP2002518071A patent/JP3851268B2/ja not_active Expired - Fee Related
- 2001-07-25 EA EA200300209A patent/EA005899B1/ru not_active IP Right Cessation
- 2001-07-25 AU AU2001287651A patent/AU2001287651A1/en not_active Abandoned
- 2001-07-25 CA CA2417886A patent/CA2417886C/fr not_active Expired - Fee Related
- 2001-07-25 US US10/333,913 patent/US8029731B2/en not_active Expired - Fee Related
- 2001-07-25 WO PCT/EP2001/008569 patent/WO2002012834A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203546A (en) * | 1984-11-30 | 1988-10-19 | Robert James Redding | An ultrasonic transducer for gas flow metering apparatus |
US5421193A (en) * | 1993-12-30 | 1995-06-06 | Proeco, Inc. | Method and apparatus for leak detection with float excitation and self-calibration |
WO1999060540A1 (fr) * | 1998-05-20 | 1999-11-25 | Advanced Technology Materials, Inc. | Dispositif detecteur de fuites pour appareil a recipient a fluide |
Non-Patent Citations (1)
Title |
---|
See also references of WO0212834A1 * |
Also Published As
Publication number | Publication date |
---|---|
EA200300209A1 (ru) | 2003-06-26 |
US8029731B2 (en) | 2011-10-04 |
EA005899B1 (ru) | 2005-06-30 |
AU2001287651A1 (en) | 2002-02-18 |
CA2417886C (fr) | 2010-06-22 |
JP3851268B2 (ja) | 2006-11-29 |
JP2004506212A (ja) | 2004-02-26 |
CA2417886A1 (fr) | 2003-02-03 |
CN1232802C (zh) | 2005-12-21 |
WO2002012834A1 (fr) | 2002-02-14 |
DE10037911A1 (de) | 2002-02-14 |
US20040101717A1 (en) | 2004-05-27 |
CN1443299A (zh) | 2003-09-17 |
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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: 20021123 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STENGELE, FLORIAN Inventor name: KRAUSE, MICHAEL |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STENGELE, FLORIAN Inventor name: KRAUSE, MICHAEL |
|
17Q | First examination report despatched |
Effective date: 20081009 |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20140414 |