WO2004086030A1 - Gassensormodul mit kontaktloser schnittstelle - Google Patents
Gassensormodul mit kontaktloser schnittstelle Download PDFInfo
- Publication number
- WO2004086030A1 WO2004086030A1 PCT/EP2004/003176 EP2004003176W WO2004086030A1 WO 2004086030 A1 WO2004086030 A1 WO 2004086030A1 EP 2004003176 W EP2004003176 W EP 2004003176W WO 2004086030 A1 WO2004086030 A1 WO 2004086030A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas sensor
- sensor module
- interface
- data
- module according
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/283—Means for supporting or introducing electrochemical probes
- G01N27/286—Power or signal connectors associated therewith
Definitions
- the present invention relates to a gas sensor, in particular an electrochemical gas sensor, for connection to a converter.
- Electrochemical gas sensors are used to monitor the atmosphere according to various criteria. When monitoring the maximum workplace concentration MAK, for example, the surroundings of a workplace are monitored for toxic components. Gas sensors are also used for UEG / OEG monitoring. LEL / OEL denotes the concentration of explosive mixtures, i.e. the lower and the upper explosion limits. Another frequently monitored parameter is asphyxia, i.e. the depletion of oxygen in a wanted and unwanted manner.
- the gas sensors are subject to aging, so that they often have to be replaced or recalibrated after a short operating time.
- on-site calibration is more difficult because the gas sensors are often installed in locations that are difficult to access.
- the Dräger company provides a modular gas monitoring system that consists of a converter module called Polytron 2 and interchangeable sensor modules that can be connected to it.
- the sensor modules include an integrated temperature sensor and a data memory, in particular an EEPROM.
- the data memory stores sensor-specific data such as gas types, sensitivity, manufacturing data and the date of the last calibration. Insofar as the data is stored in the sensor module and not in the converter, the sensor modules can be easily calibrated in a workshop.
- the converter module recognizes a new sensor and automatically adjusts to the new sensor.
- the output signal of the converter module is an analog 4 ... 20 mA signal or a digital signal according to the HART standard.
- the communication between the sensor module and the converter module and the energy supply of the sensor module takes place via an interface with plug contacts which effect a galvanic coupling between the circuits of the sensor module and the circuits of the converter module.
- plug contacts can degenerate in corrosive environments. This can affect the signal transmission between the modules.
- spark break at the plug contacts when replacing a sensor module. This should be avoided in particular in potentially explosive environments.
- the present invention is therefore based on the object of providing a gas sensor module which overcomes the disadvantages of the prior art described.
- the object is achieved according to the invention by the gas sensor module according to independent patent claim 1, by the converter module according to independent patent claim 8 and the modular gas sensor arrangement according to independent patent claim 10.
- the gas sensor module comprises an elementary sensor for detecting a gas concentration; a digital data memory for storing sensor data or process data; and an interface for connection to a higher-level unit for data exchange with the higher-level unit and for energy supply to the gas sensor module by the higher-level unit, and for reading and / or writing digital data from or to the digital data memory, the interface of the gas sensor module being a contactless interface.
- the Contactless interface can be designed, for example, as a contactless plug or as a socket for a complementary contactless plug.
- the term contactless is intended to denote that the sensor-side interface is electrically or galvanically isolated from the transmitter-side interface.
- the contactless interface can be, for example, an optical, capacitive or inductive interface, with an inductive interface currently being preferred.
- a corresponding interface is described, for example, in European Patent Application No. 1 216 079 by the same applicant. For details regarding the design of the interface, reference is made to the European patent application mentioned.
- the higher-level unit is, in particular, a suitable converter module or another suitable device for recording and processing the data of the gas sensor module.
- the connection of the interface of the gas sensor module to the higher-level system can be made directly or via a connecting cable which has a suitable contactless interface.
- the contactless interface can be designed, for example, as a socket or as a plug for a complementary contactless socket.
- All surfaces of the interfaces of the gas sensor module and the converter module are preferably corrosion-resistant, as a result of which influences of a corrosive environment on the data exchange and the energy supply are prevented.
- the surfaces of the interfaces are hermetically sealed and in particular have no openings for electrical contacts, the surface material of the interfaces can easily be adapted to the respective corrosive media, and a modular system of interface materials can be provided which are optimized for the respective application environment.
- the gas sensor module according to the invention has an analog-digital converter which generates a digital signal which is a function of the gas concentration-dependent analog signal of the elementary sensor.
- the gas sensor module according to the invention preferably further comprises a microprocessor which on the one hand controls the data exchange between the interface of the gas sensor module and the higher-level system and on the other hand the reading and writing of the digital data memory.
- the analog-digital converter is particularly preferably integrated in the microprocessor.
- a microprocessor on the modular gas sensor can be dispensed with. In this case, the reading or writing of data to the digital data memory can be controlled by the higher-level system or converter module.
- the gas sensor module preferably has a housing in which the data memory, the interface and possibly further electronic components, such as an analog-digital converter and a microprocessor, are integrated.
- a temperature sensor is integrated in the gas sensor module in order to be able to take into account the temperature and its influence on the sensitivity of the elementary sensor when evaluating the primary signals of the elementary sensor.
- the digital data memory is preferably a data memory that can be written to multiple and / or once. EEPROMS are currently particularly preferred, although EPROMS are generally also suitable.
- the digital data memory can in particular store one or more of the following data:
- the sensed sensitivity of the sensor at a first temperature in particular 25 ° C
- the temperature offset logistic information, for example a SAP code and / or a
- Order number the serial number; the temperature range; the nominal range of the gas concentration; the extreme values of the operating temperature; the extreme values of the operating gas concentration; the sign of a laboratory technician (for traceability of the calibration); the duration of use; the sensor check system status; the gas concentration reading; and the temperature reading.
- the higher-level unit or the converter module can preferably access all of the stored data with a read command.
- the higher-level unit or the converter module can preferably have a selection of the above data stored in the memory via write commands.
- the converter module according to the invention for operating at least one gas sensor module comprises a contactless interface for receiving data from the gas sensor module and, if appropriate, sending data to the gas sensor module and for supplying energy to the gas sensor module, the data comprising sensor-specific data and measurement data; and a communication circuit for outputting at least one signal dependent on the measurement data.
- the contactless interface can be designed, for example, as a contactless plug or as a socket for a complementary contactless plug.
- the communication circuit can be, for example, a circuit for generating a 4 ... 20 mA signal, a HART modem, or an interface for connection to a data bus, for example a Fieldbus Foundation data bus or a PROFIBUS data bus.
- the modular gas sensor arrangement according to the invention comprises a converter module according to the invention and at least one matching gas sensor module according to the invention.
- a plurality of gas sensor modules according to the invention are connected directly or via cables with suitable contactless interfaces to a higher-level unit, for example a converter according to the invention.
- the gas sensor modules can, for example, either be specific for different gas types or mixtures, and / or they can monitor the concentration of the same gas type at different locations.
- Fig.2 a perspective view of the mechanical
- FIG. 1 shows a gas sensor module 1 with a sensor housing 2 and an elementary sensor 3 arranged therein, which has an electrochemical gas sensor element.
- a microprocessor 4 is also arranged in the housing 2, which preferably has an integrated analog-digital converter (ADC) 5.
- ADC analog-digital converter
- the microprocessor 4 is coupled on the one hand to the analog outputs of the elementary sensor 3.
- the microprocessor is connected to a digital memory 6, which is an EEPROM in this embodiment.
- the microprocessor 4 is connected to an inductive interface 7, via which the gas sensor module 1 is supplied with energy on the one hand and the data transmission from and to a higher-level unit, which in this case comprises a converter module 8, takes place.
- a direct connection between the memory 6 and the interface 7 can also be provided.
- the converter module 8 comprises a converter-side inductive interface 9, for supplying energy to the gas sensor module 1 and for digital data exchange with the gas sensor module 1.
- the converter module comprises a data processing unit 11 which is coupled to the converter-side inductive interface 9 and a system-side interface 10. Measurement data can be output and device-specific data can be exchanged at the system interface. All common protocols such as HART, Fieldbus Foundation or PROFIBUS can be used for this.
- the microprocessor 4 receives at least one analog signal from the elementary sensor which depends on the gas concentration, and preferably also a temperature-dependent analog signal.
- the ADC 5 converts the analog signals into digital signals, which on the one hand are stored in the data memory 6 and on the other hand can be output to the converter module 8 via the inductive interface 7.
- the parameters for evaluating the signals dependent on the gas concentration and possibly the temperature data are stored in the form of calibration data on the data memory 6. After a read command from the converter module 8, the calibration data are output either via the microprocessor 4 or directly to the inductive interface 7 in order to be available to the data processing unit 11 of the converter module 8 for further processing, such as error compensation, etc.
- FIG. 2 shows an exemplary embodiment for the mechanical arrangement of the housing 2 of the gas sensor module 1 on a rod-shaped elementary sensor 3, in particular a glass electrode.
- the housing 2 has a thread 12 on its outer surface with which the modular gas sensor 1 can be mounted in a fitting.
- the housing 2 has a cylindrical end section facing away from the elementary sensor 3, in the surface area of which recesses of a bayonet lock are arranged.
- the inductive interface 7 is arranged in this end section.
- the housing 2 On the face side, the housing 2 has a cylindrical, axial blind hole, which serves as a receptacle for a housed ferrite core of an inductive interface 9 on the converter side.
- the converter-side inductive interface 9 is designed as a plug on a cable which is connected to a converter module.
- the converter-side interface 9 can be connected directly to a converter module housing or the like. be trained.
- the plug has on its end face facing the gas sensor module 1 a sleeve-like jacket surface which projects axially and coaxially surrounds the ferrite core.
- the sleeve-like lateral surface encloses at least part of the cylindrical end section of the housing 2 when the plug is fastened on the housing 2. Radially inward projections on the sleeve-like outer surface are then in engagement with the recesses of the bayonet lock in order to secure the connector.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04723170A EP1606617A1 (de) | 2003-03-26 | 2004-03-25 | Gassensormodul mit kontaktloser schnittstelle |
US10/549,751 US20060254911A1 (en) | 2003-03-26 | 2004-03-25 | Gas sensor module with contactless interface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10313639A DE10313639A1 (de) | 2003-03-26 | 2003-03-26 | Elektrochemischer Gassensor |
DE10313639.8 | 2003-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004086030A1 true WO2004086030A1 (de) | 2004-10-07 |
Family
ID=32946199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/003176 WO2004086030A1 (de) | 2003-03-26 | 2004-03-25 | Gassensormodul mit kontaktloser schnittstelle |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060254911A1 (de) |
EP (1) | EP1606617A1 (de) |
CN (1) | CN1764836A (de) |
DE (1) | DE10313639A1 (de) |
WO (1) | WO2004086030A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031339A1 (de) * | 2003-09-23 | 2005-04-07 | Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh + Co. Kg | Steckmodul für einen flüssigkeits- oder gassensor mit galvanisch entkoppelter überträgungsstrecke |
DE102005044973A1 (de) * | 2005-09-20 | 2007-03-22 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Steckmodul für einen Flüssigkeits- oder Gassensor |
CN104501852A (zh) * | 2006-03-30 | 2015-04-08 | 罗斯蒙德公司 | 识别过程组件的系统和方法 |
Families Citing this family (32)
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DE102005045272B4 (de) * | 2005-09-22 | 2007-10-04 | Dräger Safety AG & Co. KGaA | Gasmesssystem |
DE102006005632A1 (de) | 2006-02-08 | 2007-08-09 | Knick Elektronische Messgeräte GmbH & Co. KG | Verbindungssystem, insbesondere Steckverbindungssystem zur Übertragung von Daten- und Energieversorgungssignalen |
DE102006005633A1 (de) * | 2006-02-08 | 2007-08-23 | Knick Elektronische Messgeräte GmbH & Co. KG | Verbindungssystem, insbesondere Steckverbindungssystem zur Übertragung von Daten- und Energieversorgungssignalen |
US20170090002A9 (en) * | 2006-04-26 | 2017-03-30 | Endress + Hauser Conducta Gesellschaft Fur Mess - Und Regeltechnik Mbh + Co. Kg | Sensor for a Measuring Point and Method for Testing a Sensor for a Measuring Point |
EP2010867B1 (de) * | 2006-04-26 | 2017-05-31 | Endress + Hauser Conducta GmbH + Co. KG | Sensor für eine messstelle und verfahren zur überprüfung eines sensors für eine messstelle |
DE102006020341A1 (de) * | 2006-04-28 | 2007-10-31 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sensor für eine Messstelle und Verfahren zur Überprüfung eines Sensors für eine Messstelle |
GB2445774B (en) * | 2007-01-18 | 2011-12-28 | Inductronics Technology Ltd | A two part inductive connector where the parts rotate into a locked engagement |
DE102007039528A1 (de) | 2007-08-21 | 2009-02-26 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Feldgerät für die Prozessautomatisierung |
DE102007039530A1 (de) | 2007-08-21 | 2009-02-26 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Verfahren zur Kompatibilitätsprüfung eines Meßsystems bestehend aus einem Messumformer und einem Sensor |
DE102007041238A1 (de) | 2007-08-30 | 2009-03-05 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Elektrochemischer Sensor |
DE102007048812A1 (de) | 2007-10-10 | 2009-04-16 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Kabelschaltung mit digitaler Signalaufbereitung |
DE102007049523A1 (de) * | 2007-10-15 | 2009-04-16 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | System für die Prozessautomatisierung mit einer Vielzahl von intelligenten Sensoren und ein Verfahren zur Kalibrierung der Sensoren |
DE102007053223A1 (de) * | 2007-11-06 | 2009-05-07 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Verfahren zum Betreiben einer Messstelle, Messstelle und Sensoreinheit für eine solche Messstelle |
US20100302008A1 (en) * | 2008-10-22 | 2010-12-02 | Rosemount Inc. | Sensor/transmitter plug-and-play for process instrumentation |
DE102008053920A1 (de) * | 2008-10-30 | 2010-05-06 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Verteilermodul bzw. damit gebildetes Messsystem |
DE102009022814B4 (de) * | 2009-05-27 | 2023-06-15 | Testo Ag | Geräteanordnung zur Analyse einer Messprobe |
US20110098939A1 (en) * | 2009-10-27 | 2011-04-28 | Rosemount Analytical Inc. | Process analytic sensor with low power memory write function |
DE202010010172U1 (de) * | 2010-07-14 | 2011-10-20 | Babel Management Consulting | Sensor zur Flüssigkeits- oder Gasanalyse |
DE102011004492A1 (de) * | 2011-02-22 | 2012-08-23 | Robert Bosch Gmbh | Lamdasonde und Verfahren zum Betrieb einer Lamdasonde |
GB2497295A (en) * | 2011-12-05 | 2013-06-12 | Gassecure As | Method and system for gas detection |
DE102011088012A1 (de) * | 2011-12-08 | 2013-06-13 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sensorendmodul, Sensor und Messeinrichtung |
DE102011089346B4 (de) | 2011-12-21 | 2021-12-23 | Endress+Hauser SE+Co. KG | Verfahren zum Betreiben eines Feldgerätes der Prozessautomatisierungstechnik |
US8890678B2 (en) * | 2012-01-19 | 2014-11-18 | Rosemount Inc. | Plug-and-play sensor peripheral component for process instrumentation |
CN102944648B (zh) * | 2012-11-15 | 2015-03-04 | 中国科学院自动化研究所 | 模块化智能气体检测装置 |
JP6114309B2 (ja) * | 2012-12-26 | 2017-04-12 | ローズマウント インコーポレイテッド | プロセス計装用のプラグアンドプレイ式のセンサ周辺コンポーネント |
US9048901B2 (en) * | 2013-03-15 | 2015-06-02 | Rosemount Inc. | Wireless interface within transmitter |
DE102013214463A1 (de) * | 2013-07-24 | 2015-01-29 | Sick Ag | Sensoranordnung |
DE102015111594A1 (de) * | 2015-07-16 | 2017-01-19 | Endress+Hauser Conducta Gmbh+Co. Kg | Verfahren zur Kommunikation zwischen einem Sensor und einem mit dem Sensor verbindbaren Anschlusselement |
DE102017116504A1 (de) * | 2017-07-21 | 2019-01-24 | Endress+Hauser Conducta Gmbh+Co. Kg | Modulares Messsystem |
DE102017215064A1 (de) * | 2017-08-29 | 2019-02-28 | Robert Bosch Gmbh | Vorrichtung, Mundstück, System und Verfahren zur Messung eines Analyten in einer Probe, insbesondere in Ausatemluft |
KR102407592B1 (ko) * | 2017-10-25 | 2022-06-13 | 삼성전자주식회사 | 교체 가능한 센서를 장착하는 전자 장치 |
CN111478127B (zh) * | 2020-04-17 | 2020-12-29 | 中国科学院地质与地球物理研究所 | 信号处理电路、非接触连接器、信号处理方法及存储介质 |
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- 2004-03-25 CN CNA2004800079107A patent/CN1764836A/zh active Pending
- 2004-03-25 US US10/549,751 patent/US20060254911A1/en not_active Abandoned
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031339A1 (de) * | 2003-09-23 | 2005-04-07 | Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh + Co. Kg | Steckmodul für einen flüssigkeits- oder gassensor mit galvanisch entkoppelter überträgungsstrecke |
US7587953B2 (en) | 2003-09-23 | 2009-09-15 | Endress + Hauser Conducta Gesellschaft Fur Mess- Und Regeltechnik Mbh + Co. Kg | Pluggable module for a liquid or gas sensor |
DE102005044973A1 (de) * | 2005-09-20 | 2007-03-22 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Steckmodul für einen Flüssigkeits- oder Gassensor |
US8847602B2 (en) | 2005-09-20 | 2014-09-30 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Plug-in module for a liquid or gas sensor |
CN104501852A (zh) * | 2006-03-30 | 2015-04-08 | 罗斯蒙德公司 | 识别过程组件的系统和方法 |
CN104501852B (zh) * | 2006-03-30 | 2018-12-04 | 罗斯蒙德公司 | 识别过程组件的系统和方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10313639A1 (de) | 2004-10-07 |
US20060254911A1 (en) | 2006-11-16 |
CN1764836A (zh) | 2006-04-26 |
EP1606617A1 (de) | 2005-12-21 |
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