EP1926987A1 - Plug-in module for a liquid or gas sensor - Google Patents

Plug-in module for a liquid or gas sensor

Info

Publication number
EP1926987A1
EP1926987A1 EP06793683A EP06793683A EP1926987A1 EP 1926987 A1 EP1926987 A1 EP 1926987A1 EP 06793683 A EP06793683 A EP 06793683A EP 06793683 A EP06793683 A EP 06793683A EP 1926987 A1 EP1926987 A1 EP 1926987A1
Authority
EP
European Patent Office
Prior art keywords
sensor module
sensor
data
smk
module head
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Withdrawn
Application number
EP06793683A
Other languages
German (de)
French (fr)
Inventor
Wolfgang Babel
Detlev Wittmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser Conducta GmbH and Co KG
Original Assignee
Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG filed Critical Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG
Publication of EP1926987A1 publication Critical patent/EP1926987A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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 plug-in module for a liquid or
  • Liquid or gas sensors are used to measure pH values or redox potentials, temperatures, conductivities or turbidity of liquids.
  • Potentiometric sensors are mainly used to determine potentials at high resistances as is the case with pH measurements and redox measurements.
  • the potentials of the solutions are recorded with the aid of pH electrodes or redox electrodes.
  • Electrodes are exposed to heavy wear in many applications, so they often have to be replaced after a short period of operation.
  • pH sensors that consist only of a pH electrode without any electronic components. These pH electrodes provide a pH-dependent potential, which can be tapped off at suitable electrical connections. Optionally, these pH electrodes for temperature compensation have an integrated temperature sensor, eg. B. PT100, whose potential can be tapped at suitable temperature outputs. For measuring these pH sensors are usually connected via a cable to a transmitter, which generates a measurement signal from the pH-dependent potential and optionally the temperature signal of the temperature sensor.
  • an integrated temperature sensor eg. B. PT100
  • the output signal of the preamplifier is the potential of the pH sensor, but instead of the internal resistance of the pH sensor, which is in the order of 100 M ⁇ , now the internal resistance of the preamplifier with a few ⁇ crucial. Therefore, the further transmission and processing of the output potential to a transmitter is considerably simplified.
  • the preamplifier is either powered by a battery or powered by a cable.
  • Transmitter available, which are mounted directly on the pH sensors. This makes it possible, in the immediate vicinity of the sensor z. B. generate a 4-20 mA measurement signal, which can then be easily transferred to the control room.
  • Sensor-specific Formations such as measuring point designations etc. are usually not available on site, ie in the immediate vicinity of the sensor.
  • the sensor system offered by the company Endress + Hauser under the name Memosens comprises a sensor module and a sensor module head, which can be plugged together.
  • the data exchange between sensor module and sensor module head and the power supply to the sensor module are made inductively via a connecting path which serves for galvanic decoupling.
  • a sensor module is provided in the digital memory, in the u. a. Calibration parameters are stored. This technology is disclosed, for example, in the published patent applications DE 100 55 090 and DE 102 18 606.
  • German Offenlegungsschrift DE 103 44 262 discloses a plug-in module which in particular makes it possible to present sensor-specific information directly on site to the sensor and furthermore allows a check of the measured value sent to the control room.
  • this module is not only suitable for displaying data from the sensor, but also to transmit this data by cable or by radio to a higher-level unit.
  • the data transmission by radio requires too much energy to enable sustainable operation of the sensor by means of the plug-in module.
  • the operation of the sensor via a cable extending from a transmitter to the sensor is not always practical, especially for remote sensors.
  • the object is achieved by the sensor module head according to the independent claim 1.
  • the sensor module head for a liquid or gas sensor comprising a sensor module and a sensor module head, which are releasably connected to each other and allow in the assembled state, a data and energy exchange via a galvanically decoupled transmission path, wherein
  • the sensor module head has a power supply unit for operating the sensor module head and the sensor module and a data memory to store sensor data received from the sensor module.
  • the sensor module head can have a display unit which serves to display sensor data stored in the sensor module head.
  • the sensor module head For further processing or evaluation of the sensor data, the sensor module head, for example, deducted from the sensor module and connected to read the sensor data to a suitable reader.
  • the sensor data may include measurement data whose history has been recorded for a long time, or they may relate to sensor module status data.
  • the galvanically decoupled transmission route includes, for example, an inductive transmission path with a primary-side inductive interface in the sensor head module and a secondary-side inductive interface in the sensor module, wherein the energy supply via the sensor module via an AC signal, and the data transmission from the sensor module to the sensor head module by load modulation of the AC signal can be realized.
  • the reading of the sensor module head can be done for example via the inductive interface or an optional additional interface.
  • FIG. 1 shows a sensor module in a schematic representation
  • FIG. 2 shows a sensor module head in a schematic representation
  • the sensor module SM consists of a measuring sensor (for example a glass electrode), which is immersed in the liquid to be measured.
  • the transducer supplies an analog measurement signal which is preprocessed in an analog signal processing unit SV.
  • the processed analog measurement signal is converted in an analog-to-digital converter AD in a digital value, which is further processed in a microcontroller ⁇ Cl.
  • the microcontroller ⁇ C1 is connected to a coil L1 via a modem M / D and a power supply NT.
  • the entire sensor module SM is supplied with power.
  • a sensor module head is formed, which is shown in more detail in Fig. 2.
  • the sensor module head SMK and the sensor module SM are pluggable connectable.
  • a coil L2 is connected via an amplifier V to a modem M2.
  • the sensor module head SMK further includes a microcontroller ⁇ C
  • the microcontroller comprises a data memory MEM, in which the received from the sensor module Sensor data can be stored.
  • a power supply unit EVE is provided for feeding the components of the sensor module head.
  • the energy supply unit EVE can consist of a battery or solar cells in combination with an energy store, for example an accumulator.
  • D sensor-specific information such. B. measuring point designation.
  • the corresponding data are read out directly from the sensor module SM or the data memory MEM in the sensor module head.
  • a suitable interface I / O is provided.
  • the application of a supply voltage for charging the EVE can for example also take place via the interface, or it can be provided a separate connection.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention relates to a sensor module head (SMK) for a liquid or gas sensor comprising a sensor module (SM) and a sensor module head (SMK) which can be removably interconnected and allow data and power to be exchanged via a galvanically disconnected transmission path in the joined state. The sensor module head (SMK) is provided with a power supply unit (EVE) for operating the sensor module head (SMK) and the sensor module (SM), as well as a data memory (MEM) for storing sensor data received from the sensor module (SM).

Description

Beschreibung Steckmodul für einen Flüssigkeits- oder Gassensor Description Plug-in module for a liquid or gas sensor
[0001] Die vorliegende Erfindung betrifft ein Steckmodul für einen Flüssigkeits- oderThe present invention relates to a plug-in module for a liquid or
Gassensor gemäß dem Oberbegriff des Anspruchs 1. Flüssigkeits- oder Gassensoren werden eingesetzt um pH- Werte oder Redox-Potentiale, Temperaturen, Leitfähigkeiten oder Trübungen bei Flüssigkeiten zu messen.Gas sensor according to the preamble of claim 1. Liquid or gas sensors are used to measure pH values or redox potentials, temperatures, conductivities or turbidity of liquids.
[0002] Im Folgenden wird im wesentlichen von potentiometrischen Sensoren, als Beispiel für einen Flüssigkeits- bzw. Gassensor die Rede sein.In the following will be essentially of potentiometric sensors, as an example of a liquid or gas sensor talk.
[0003] Potentiometrische Sensoren werden vor allem eingesetzt, um Potentiale bei großen Widerständen wie dies bei pH-Messungen und Redox-Messungen der Fall ist, zu bestimmen. Mit Hilfe von pH-Elektroden bzw. Redox-Elektroden werden die Potentiale der Lösungen erfasst.Potentiometric sensors are mainly used to determine potentials at high resistances as is the case with pH measurements and redox measurements. The potentials of the solutions are recorded with the aid of pH electrodes or redox electrodes.
[0004] Diese Elektroden sind in vielen Anwendungsfällen starkem Verschleiß ausgesetzt, so dass sie häufig nach kurzer Betriebszeit ausgetauscht werden müssen.These electrodes are exposed to heavy wear in many applications, so they often have to be replaced after a short period of operation.
[0005] Es gibt sehr einfach aufgebaute pH-Sensoren die nur aus einer pH-Elektrode ohne jegliche Elektronikbauteile bestehen. Diese pH-Elektroden liefern einen pH- abhängiges Potential, welches an geeigneten elektrischen Anschlüssen abgreifbar ist. Optional weisen diese pH-Elektroden zur Temperaturkompensation einen integrierten Temperatursensor, z. B. PT100, auf, dessen Potential an geeigneten Temperaturausgängen abgreifbar ist. Zum Messen werden diese pH-Sensoren gewöhnlich über ein Kabel an einem Transmitter angeschlossen, der aus dem pH-abhängigen Potential und gegebenenfalls dem Temperatursignal des Temperatursensors ein Messsignal generiert.There are very simple pH sensors that consist only of a pH electrode without any electronic components. These pH electrodes provide a pH-dependent potential, which can be tapped off at suitable electrical connections. Optionally, these pH electrodes for temperature compensation have an integrated temperature sensor, eg. B. PT100, whose potential can be tapped at suitable temperature outputs. For measuring these pH sensors are usually connected via a cable to a transmitter, which generates a measurement signal from the pH-dependent potential and optionally the temperature signal of the temperature sensor.
[0006] Neben den beschriebenen einfachen pH-Elektroden bzw. Sensoren gibt es auch welche mit integriertem Vorverstärker zur Impedanz- Wandlung. Das Ausgangssignal des Vorverstärkers ist das Potential des pH-Sensors, wobei jedoch anstelle des Innenwiderstands des pH-Sensors, der in der Größenordnung von 100 MΩ liegt, nunmehr der Innenwiderstand des Vorverstärkers mit einigen Ω ausschlaggebend. Daher ist die weitere Übertragung und Verarbeitung des Ausgangspotentials zu einem Transmitter erheblich vereinfacht. Der Vorverstärker wird entweder über eine Batterie gespeist oder über ein Kabel mit Spannung versorgt.In addition to the described simple pH electrodes or sensors, there are also those with integrated preamplifier for impedance conversion. The output signal of the preamplifier is the potential of the pH sensor, but instead of the internal resistance of the pH sensor, which is in the order of 100 MΩ, now the internal resistance of the preamplifier with a few Ω crucial. Therefore, the further transmission and processing of the output potential to a transmitter is considerably simplified. The preamplifier is either powered by a battery or powered by a cable.
[0007] Weiterhin sind unter dem Namen Direct Line der Firma Honeywell einfacheFurthermore, under the name of Direct Line Honeywell company are simple
Transmitter erhältlich, welche direkt auf die pH-Sensoren montiert werden. Damit ist es möglich, in unmittelbarer Nähe des Sensors z. B. ein 4-20 mA Messsignal zu generieren, welches dann ohne weiteres zur Warte übertragen werden kann.Transmitter available, which are mounted directly on the pH sensors. This makes it possible, in the immediate vicinity of the sensor z. B. generate a 4-20 mA measurement signal, which can then be easily transferred to the control room.
[0008] Bei allen bekannten pH-Elektroden bzw. pH-Sensoren ist es erforderlich dieIn all known pH electrodes or pH sensors, it is necessary the
Elektroden nach dem Anschluss an den Transmitter zu kalibrieren, um die ermittelten Kalibrierungsparameter im Transmitter abspeichern zu können. Sensorspezifische In- formationen wie Messstellenbezeichnung etc. sind in der Regel vor Ort also in unmittelbarer Nahe des Sensors nicht erhältlich.To calibrate electrodes after connection to the transmitter in order to store the determined calibration parameters in the transmitter. Sensor-specific Formations such as measuring point designations etc. are usually not available on site, ie in the immediate vicinity of the sensor.
[0009] Das von der Fa. Endress+Hauser unter dem Namen Memosens angebotene Sensorsystem umfasst ein Sensormodul und einem Sensormodulkopf, die zusammensteckbar sind. Der Datenaustausch zwischen Sensormodul und Sensormodulkopf und die Energieversorgung zum Sensormodul erfolgen induktiv über eine Verbindungsstrecke die zur galvanischen Entkopplung dient. Weiterhin ist ein Sensormodul im digitalen Speicher vorgesehen, in dem u. a. Kalibrierungsparameter abgespeichert sind. Diese Technologie ist beispielsweise in den Offenlegungsschriften DE 100 55 090 und DE102 18 606 offenbart.The sensor system offered by the company Endress + Hauser under the name Memosens comprises a sensor module and a sensor module head, which can be plugged together. The data exchange between sensor module and sensor module head and the power supply to the sensor module are made inductively via a connecting path which serves for galvanic decoupling. Furthermore, a sensor module is provided in the digital memory, in the u. a. Calibration parameters are stored. This technology is disclosed, for example, in the published patent applications DE 100 55 090 and DE 102 18 606.
[0010] Als Zubehör zu einem Sensor gemäß der genannten Schriften offenbart die Offenle- gungsschrift DE 103 44 262 ein Steckmodul, das insbesondere ermöglicht, sensorspezifische Informationen direkt vor Ort am Sensor darzustellen und dass weiterhin eine Überprüfung des an die Warte gesendeten Messwertes ermöglicht. In einer besonderen Ausgestaltung ist dieses Modul nicht nur dazu geeignet, Daten vom Sensor anzuzeigen, sondern diese auch per Kabel oder per Funk zu einer übergeordneten Einheit zu übertragen.[0010] As an accessory to a sensor according to the cited documents, German Offenlegungsschrift DE 103 44 262 discloses a plug-in module which in particular makes it possible to present sensor-specific information directly on site to the sensor and furthermore allows a check of the measured value sent to the control room. In a particular embodiment, this module is not only suitable for displaying data from the sensor, but also to transmit this data by cable or by radio to a higher-level unit.
[0011] In bestimmten Anwendungsfällen erfordert die Datenübertragung per Funk einen zu großen Energieaufwand um einen nachhaltigen Betrieb des Sensors mittels des Steckmoduls zu ermöglichen. Gleichermaßen ist der Betrieb des Sensors über ein Kabel, welches von einem Messumformer zum Sensor verläuft, insbesondere bei entlegen positionierten Sensoren nicht immer praktikabel.In certain applications, the data transmission by radio requires too much energy to enable sustainable operation of the sensor by means of the plug-in module. Likewise, the operation of the sensor via a cable extending from a transmitter to the sensor is not always practical, especially for remote sensors.
[0012] Es ist daher die Aufgabe der vorliegenden Erfindung einen insbesondere steckbaren Sensormodulkopf zum Betreiben eines Sensors bereitzustellen, welcher die Nachteile des Stands der Technik überwindet.It is therefore an object of the present invention to provide a particular pluggable sensor module head for operating a sensor, which overcomes the disadvantages of the prior art.
[0013] Die Aufgabe wird erfindungsgemäß gelöst durch den Sensormodulkopf gemäß des unabhängigen Patentanspruchs 1.The object is achieved by the sensor module head according to the independent claim 1.
[0014] Der erfindungsgemäße Sensormodulkopf für einen Flüssigkeits- oder Gassensor, der ein Sensormodul und einen Sensormodulkopf umfasst, die lösbar miteinander verbindbar sind und die im zusammengesetzten Zustand einen Daten- und Energieaustausch über eine galvanisch entkoppelte Übertragungsstrecke ermöglichen, wobeiThe sensor module head according to the invention for a liquid or gas sensor comprising a sensor module and a sensor module head, which are releasably connected to each other and allow in the assembled state, a data and energy exchange via a galvanically decoupled transmission path, wherein
[0015] der Sensormodulkopf eine Energieversorgungseinheit zum Betreiben des Sensormodulkopfs und des Sensormoduls sowie einen Datenspeicher aufweist, um vom Sensormodul empfangene Sensordaten abzuspeichern.The sensor module head has a power supply unit for operating the sensor module head and the sensor module and a data memory to store sensor data received from the sensor module.
[0016] In einer Weiterbildung der Erfindung kann der Sensormodulkopf eine Anzeigeeinheit aufweisen, die zur Anzeige von im Sensormodulkopf gespeicherten Sensordaten dient.In a development of the invention, the sensor module head can have a display unit which serves to display sensor data stored in the sensor module head.
[0017] Zur weiteren Verarbeitung bzw. Auswertung der Sensordaten kann der Sensor- modulkopf beispielsweise vom Sensormodul abgezogen und zum Auslesen der Sensordaten an ein geeignetes Auslesegerät angeschlossen werden. Die Sensordaten können Messdaten umfassen, deren Verlauf über längere Zeit aufgezeichnet wurde, oder sie können Zustandsdaten des Sensormoduls betreffen.[0017] For further processing or evaluation of the sensor data, the sensor module head, for example, deducted from the sensor module and connected to read the sensor data to a suitable reader. The sensor data may include measurement data whose history has been recorded for a long time, or they may relate to sensor module status data.
[0018] Die galvanisch entkoppelte Übertragungs strecke umfasst beispielsweise eine induktive Übertragungsstrecke mit einer primärseitigen induktiven Schnittstelle im Sensorkopfmodul und einer sekundärseitigen induktiven Schnittstelle im Sensormodul, wobei die Energiespeisung über des Sensormoduls über ein AC-Signal erfolgt, und die Datenübertragung vom Sensormodul zum Sensorkopfmodul durch Lastmodulation des AC-Signals realisiert werden kann.The galvanically decoupled transmission route includes, for example, an inductive transmission path with a primary-side inductive interface in the sensor head module and a secondary-side inductive interface in the sensor module, wherein the energy supply via the sensor module via an AC signal, and the data transmission from the sensor module to the sensor head module by load modulation of the AC signal can be realized.
[0019] Das Auslesen des Sensormodulkopfs kann beispielsweise über die induktive Schnittstelle oder eine ggf. vorgesehene zusätzliche Schnittstelle erfolgen.The reading of the sensor module head can be done for example via the inductive interface or an optional additional interface.
[0020] Nachfolgend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to an embodiment shown in the drawing.
[0021] Es zeigen:[0021] In the drawings:
[0022] Fig. 1 Ein Sensormodul in schematischer Darstellung;FIG. 1 shows a sensor module in a schematic representation; FIG.
[0023] Fig. 2 Einen Sensormodulkopf in schematischer Darstellung;FIG. 2 shows a sensor module head in a schematic representation; FIG.
[0024] In Fig. 1 ist ein Sensormodul SM näher dargestellt. Das Sensormodul SM besteht aus einem Messwertaufnehmer (z. B. einer Glaselektrode), die in die zu messende Flüssigkeit eingetaucht wird. Der Messwertaufnehmer liefert ein analoges Messsignal, das in einer analogen Signalverarbeitungseinheit SV vorverarbeitet wird.In Fig. 1, a sensor module SM is shown in more detail. The sensor module SM consists of a measuring sensor (for example a glass electrode), which is immersed in the liquid to be measured. The transducer supplies an analog measurement signal which is preprocessed in an analog signal processing unit SV.
[0025] Anschließend wird das aufbereitete analoge Messsignal in einem Analog- Digital- Wandler AD in einem Digitalwert umgewandelt, der in einem Mikrocontroller μCl weiterverarbeitet wird. Der Mikrocontroller μCl ist über ein Modem M/D und einem Netzteil NT mit einer Spule Ll verbunden. Über das Netzteil NT wird das gesamte Sensormodul SM mit Spannung versorgt. Passend zum Sensormodul SM ist ein Sensormodulkopf ausgebildet, der in Fig. 2 näher dargestellt ist. Der Sensormodulkopf SMK und das Sensormodul SM sind steckbar miteinander verbindbar. Beim Sensormodulkopf SMK ist eine Spule L2 über einen Verstärker V mit einem Modem M2 verbunden.Subsequently, the processed analog measurement signal is converted in an analog-to-digital converter AD in a digital value, which is further processed in a microcontroller μCl. The microcontroller μC1 is connected to a coil L1 via a modem M / D and a power supply NT. About the power supply NT, the entire sensor module SM is supplied with power. Suitable for the sensor module SM, a sensor module head is formed, which is shown in more detail in Fig. 2. The sensor module head SMK and the sensor module SM are pluggable connectable. In the sensor module head SMK, a coil L2 is connected via an amplifier V to a modem M2.
[0026] Über die Spulen Ll und L2 erfolgt ein Daten- und Energieaustausch. Weitere Einzelheiten zum induktiven Datenaustausch über ASK oder FSK zwischen dem sekundärseitigen Sensormodul und dem primärseitigen Sensormodulkopf und der Energieversorgung des Sensormoduls über die induktive Kopplung sind den oben genannten Offenlegungsschriften zu entnehmen.About the coils Ll and L2, a data and energy exchange takes place. Further details on the inductive data exchange via ASK or FSK between the secondary-side sensor module and the primary-side sensor module head and the power supply of the sensor module via the inductive coupling can be found in the above-mentioned publications.
[0027] Der Sensormodulkopf SMK weist weiterhin einen Mikrocontroller μC zurThe sensor module head SMK further includes a microcontroller μC
Steuerung der Komponenten des Sensormodulkopfs auf, wobei der Mikrocontroller einen Datenspeicher MEM umfasst, in dem die von dem Sensormodul empfangenen Sensordaten gespeichert werden können. Weiterhin ist eine Energieversorgungseinheit EVE zum Speisen der Komponenten des Sensormodulkopfs vorgesehen. Die Energieversorgungseinheit EVE kann eine Batterie bzw. Solarzellen in Kombination mit einem Energiespeicher, beispielsweise einem Akkumulator bestehen.Controlling the components of the sensor module head, wherein the microcontroller comprises a data memory MEM, in which the received from the sensor module Sensor data can be stored. Furthermore, a power supply unit EVE is provided for feeding the components of the sensor module head. The energy supply unit EVE can consist of a battery or solar cells in combination with an energy store, for example an accumulator.
[0028] Am einem optional vorgesehenen Display D können sensorspezifische Informationen, wie z. B. Messstellenbezeichnung dargestellt werden. Hierzu werden die entsprechenden Daten direkt aus dem Sensormodul SM oder dem Datenspeicher MEM im Sensormodulkopf ausgelesen.On an optionally provided display D sensor-specific information such. B. measuring point designation. For this purpose, the corresponding data are read out directly from the sensor module SM or the data memory MEM in the sensor module head.
[0029] Zum Auslesen der in dem Datenspeicher MEM abgelegten Sensordaten und zurFor reading out the sensor data stored in the data memory MEM and for
Programmierung des Mikrocontrollers ist eine geeignete Schnittstelle I/O vorgesehen.Programming the microcontroller, a suitable interface I / O is provided.
[0030] Das Anlegen einer Versorgungsspannung zum Laden der EVE kann beispielsweise ebenfalls über die Schnittstelle erfolgen, oder es kann ein separater Anschluss vorgesehen sein. The application of a supply voltage for charging the EVE can for example also take place via the interface, or it can be provided a separate connection.

Claims

Ansprücheclaims
[0001] 1. Sensormodulkopf (SMK) für einen Flüssigkeits- oder Gassensor, der ein1. Sensor module head (SMK) for a liquid or gas sensor, the one
Sensormodul (SM) und einen Sensormodulkopf (SMK) umfasst, die lösbar miteinander verbindbar sind und die im zusammengesetzten Zustand einen Daten- und Energieaustausch über eine galvanisch entkoppelte Übertragungsstrecke ermöglichen, wobei der Sensormodulkopf (SMK) eine Energieversorgungseinheit (EVE) zum Betreiben des Sensormodulkopfs (SMK) und des Sensormoduls (SM) sowie einen Datenspeicher (MEM) aufweist, um vom Sensormodul (SM) empfangene Sensordaten abzuspeichern.Sensor module (SM) and a sensor module head (SMK), which are releasably connectable to each other and allow in the assembled state, a data and energy exchange via a galvanically decoupled transmission path, wherein the sensor module head (SMK) a power supply unit (EVE) for operating the sensor module head ( SMK) and the sensor module (SM) and a data memory (MEM) to store the sensor module (SM) received sensor data.
[0002] 2. Sensormodulkopf nach Anspruch 1, wobei der Sensormodulkopf (SMK) eine2. Sensor module head according to claim 1, wherein the sensor module head (SMK) a
Anzeigeeinheit (D) aufweist, die zur Anzeige von gespeicherten Sensordaten dient.Display unit (D), which is used to display stored sensor data.
[0003] 3. Sensormodulkopf nach Anspruch 1 oder 2 wobei der Sensormodulkopf zur weiteren Verarbeitung bzw. Auswertung der Sensordaten vom Sensormodul abziehbar und mittels einer Schnittstelle (I/O) zum Auslesen der Sensordaten an ein geeignetes Auslesegerät anschließbar ist.3. sensor module head according to claim 1 or 2 wherein the sensor module head for further processing or evaluation of the sensor data from the sensor module removable and can be connected by means of an interface (I / O) for reading the sensor data to a suitable read-out device.
[0004] 4. Sensormodulkopf nach Anspruch 3, wobei die Sensordaten Zustandsdaten des4. Sensor module head according to claim 3, wherein the sensor data state data of
Sensormoduls und/oder Messdaten umfassen, deren Verlauf über längere Zeit aufgezeichnet wurde. Sensor module and / or measured data include, whose history has been recorded for a long time.
EP06793683A 2005-09-20 2006-09-20 Plug-in module for a liquid or gas sensor Withdrawn EP1926987A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005044973A DE102005044973A1 (en) 2005-09-20 2005-09-20 Plug-in module for a liquid or gas sensor
PCT/EP2006/066554 WO2007033972A1 (en) 2005-09-20 2006-09-20 Plug-in module for a liquid or gas sensor

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EP1926987A1 true EP1926987A1 (en) 2008-06-04

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