WO2009027210A1 - Détecteur électrochimique - Google Patents

Détecteur électrochimique Download PDF

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Publication number
WO2009027210A1
WO2009027210A1 PCT/EP2008/060496 EP2008060496W WO2009027210A1 WO 2009027210 A1 WO2009027210 A1 WO 2009027210A1 EP 2008060496 W EP2008060496 W EP 2008060496W WO 2009027210 A1 WO2009027210 A1 WO 2009027210A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
electrochemical sensor
side connector
connector element
supply unit
Prior art date
Application number
PCT/EP2008/060496
Other languages
German (de)
English (en)
Inventor
Thomas Hartmann
Martin Lohmann
Sven-Matthias Scheibe
Peter Lindmüller
Thilo Trapp
Stephan Buschnakowski
Original Assignee
Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh+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+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh+Co. Kg filed Critical Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh+Co. Kg
Publication of WO2009027210A1 publication Critical patent/WO2009027210A1/fr

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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
    • G01N27/283—Means for supporting or introducing electrochemical probes
    • G01N27/286—Power or signal connectors associated therewith
    • 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
    • H01F2038/143—Inductive couplings for signals

Definitions

  • the invention relates to an electrochemical sensor with a
  • Sensor element having a primary-side connector element and a secondary-side connector element, wherein the secondary-side connector element is connectable to the sensor element, wherein the primary-side connector element and the secondary-side connector element are connectable via a connector coupling, and wherein the power supply and the communication between the primary-side connector element and the sensor element or the secondary-side connector element via the connector coupling takes place.
  • a potentiometric sensor which has an elementary sensor with a digital data memory, wherein the data memory is firmly connected to the sensor.
  • the data memory stores process or sensor data.
  • the sensor communicates via an interface with a higher-level unit, eg. As a transmitter or a cable.
  • the sensor transmits measurement signals via the interface, which represent the pH value or another measured value.
  • data is read from the data memory or written to the data memory via the interface.
  • the power supply of the sensor preferably also takes place via the interface.
  • the electrochemical sensor is, for example, an oxygen sensor.
  • Corresponding sensors with inductive interface are offered and distributed by the applicant in various embodiments under the name MEMOSENS or with reference to the MEMOSENS technology.
  • the invention has for its object to design a sensor so that it is ready for use immediately after startup.
  • Connector element is assigned a power supply unit, which supplies the sensor element via the connector coupling with an operating voltage.
  • This operating voltage is preferably designed so that the electrochemical sensor is ready to delay in a first-time or re-commissioning or intermittent operation after a stand-by phase. In the case of an ISFET sensor, this operating voltage corresponds to the polarization voltage of the ISFET.
  • the senor is in the case of storage of the sensor element in the primary-side connector element to an adapter which is plugged during storage of the sensor element on the secondary-side connector element and supplies the sensor element with the required minimum operating voltage ,
  • it is a plug-in adapter, with the same mechanical
  • Link mechanism e.g. a bayonet lock
  • the primary-side connector element commonly connected to the secondary-side connector element.
  • the Power supply unit is configured so that it can be switched on and off, and that the power supply unit is activated in the standby state and provides the minimum operating voltage for the sensor element available and that the power supply unit is deactivated during normal operation of the electro-chemical sensor.
  • the energy supply unit is associated with an energy store, which is designed so that it charges during normal operation of the electrochemical sensor.
  • Connector coupling is a galvanically isolated, in particular an inductive interface is used, it can also be a galvanic interface in the connector coupling.
  • a contactless interface of course, an optically or capacitively coupling interface can be provided.
  • the electrochemical sensor is a pH sensor either with a glass electrode or with an ISFET electrode or a sensor for determining a chemical substance.
  • the substance to be detected may be e.g. to be any substance dissolved in a liquid. For example, a concentration of oxygen, nitrogen or chlorine is measured.
  • the power supply unit is a battery, a solar cell or a fuel cell.
  • the electrochemical sensor is connected via a connecting line and / or by radio with a transmitter, wherein the transmitter communicates with a parent control room possibly via a connecting line and / or via radio.
  • the communication of the electrochemical sensor with the parent control room is carried out either via a connecting line and / or via radio.
  • the communication is based on one of the protocols which are used by default in process automation, eg Profibus PA, Fieldbus Foundation, etc.
  • FIG. 1 shows an embodiment of the electrochemical sensor according to the invention, which can be used for the intermittent measuring operation
  • FIG. 2 shows an embodiment of the plug-in adapter according to the invention
  • 1 shows a preferred embodiment of the electrochemical sensor 1 according to the invention. This embodiment is preferably used in intermittent measuring operation. Shown in FIG. 1 are only a few components which are required for data and energy transmission between the primary-side connector element 2 and the secondary-side connector element 3. For detailed information on this, reference is made to the two cited in the introduction to the writings of the prior art or to the MEMOSENS the Applicant.
  • the electrochemical sensor 1 is - as already mentioned - from a primary-side connector element 2 and a secondary-side connector element 3.
  • the secondary-side connector element 3 is connectable to the sensor element 5.
  • the sensor element 5 is, for example, a pH glass electrode or a pH-ISFET electrode.
  • the primary-side connector element 2 and the secondary-side connector element 3 are connected to each other via a connector coupling 4.
  • the mechanical connection of the two components 2, 3 takes place for example via a bayonet closure, as used in the applicant's MEMOSENS.
  • the coupling can also be configured capacitively or optically.
  • a galvanic interface can be used. Through this connector coupling 4 or interface, the power supply and the data exchange between the primary-side Connector element 2 and the secondary-side connector element 3, which is connected to the sensor element 5.
  • the secondary-side connector element 3 When intermittent operation in the stand-by phase, the secondary-side connector element 3 is supplied with the sensor element 5 via the interface 4 with the necessary operating voltage.
  • the operating voltage U provided is the so-called polarization voltage.
  • the energy supply unit 6 is deactivated. The connection and disconnection of the power supply unit 6 via the switch. 7
  • the intermittent operation of the electrochemical sensor 1 is controlled via the connecting line 9 or the cable 9, which connects the sensor 1 with a transmitter 11.
  • the data transmission between the sensor 1 and the transmitter 11 can also be carried out by radio.
  • Via the connecting line 13 or via radio 14 of the transmitter 11 is further connected to a parent control room 12.
  • Fig. 2 shows the plug-in adapter 18 according to the invention, which is used when the smart sensor element 5 is not coupled with coupled secondary-side connector element 3 in a process plant, but is stored.
  • the plug-in adapter 18 also has an associated power supply unit 6, which provides the minimum operating voltage U to the secondary-side plug connector element 3 and the sensor element 5.
  • the sensor element 5 is always in the steady state and is ready for use immediately after integration into the process plant.
  • a switch 7 the power supply unit 6 is also switched on and off.
  • the power supply unit 6 is, for example, a battery, a fuel cell, a solar cell, etc.

Abstract

L'invention concerne un détecteur électrochimique (1) comprenant un élément détecteur (5), un élément connecteur (2) côté primaire et un élément connecteur (3) côté secondaire, l'élément connecteur (3) côté secondaire pouvant être raccordé à l'élément détecteur (5), l'élément connecteur (2) côté primaire et l'élément connecteur (3) côté secondaire pouvant être raccordés par un accouplement (4) de connecteurs. L'alimentation en énergie et éventuellement la communication entre l'élément connecteur (2) côté primaire et l'élément détecteur (5) ou l'élément connecteur (3) côté secondaire et l'accouplement (4) de connecteurs. Pour que le détecteur soit prêt à l'emploi juste après une phase d'attente, un bloc d'alimentation en énergie (16) est affecté à l'élément connecteur (2) côté primaire. Ledit bloc d'alimentation alimente l'élément détecteur (5) par l'accouplement (4) de connecteurs en tension (U) nécessaire au fonctionnement de l'élément détecteur (5).
PCT/EP2008/060496 2007-08-30 2008-08-11 Détecteur électrochimique WO2009027210A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041238A DE102007041238A1 (de) 2007-08-30 2007-08-30 Elektrochemischer Sensor
DE102007041238.1 2007-08-30

Publications (1)

Publication Number Publication Date
WO2009027210A1 true WO2009027210A1 (fr) 2009-03-05

Family

ID=39929869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/060496 WO2009027210A1 (fr) 2007-08-30 2008-08-11 Détecteur électrochimique

Country Status (2)

Country Link
DE (1) DE102007041238A1 (fr)
WO (1) WO2009027210A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008043297B4 (de) 2008-10-29 2023-03-30 Endress+Hauser Conducta Gmbh+Co. Kg Schnittstellenneutrales Funktionsmodul für ein modulares Messgerät und modulares Messgerät mit einem schnittstellenneutralen Funktionsmodul
DE102008053920A1 (de) 2008-10-30 2010-05-06 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Verteilermodul bzw. damit gebildetes Messsystem
DE102012104025A1 (de) 2012-05-08 2013-11-14 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Sensoreinheit zur Bestimmung einer Messgröße eines Messstoffs
DE102021129604A1 (de) 2020-12-16 2022-06-23 Endress+Hauser Conducta Gmbh+Co. Kg Verfahren und Sensoranordnung zur Übertragung von Energie an einen Sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008141A (en) * 1974-10-04 1977-02-15 Horiba, Ltd. Combination pH electrode
JPS6018752A (ja) * 1983-07-13 1985-01-30 Toshiba Corp 残留塩素測定装置
DE4033052A1 (de) * 1990-10-18 1992-04-23 Hottinger Messtechnik Baldwin Kontaktlose verbindungseinrichtung zur uebertragung von messwertsignalen und energie
DE10218606A1 (de) * 2002-04-25 2003-11-06 Conducta Endress & Hauser Potentiometrischer Sensor
DE10313639A1 (de) * 2003-03-26 2004-10-07 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Elektrochemischer Gassensor
WO2005031339A1 (fr) * 2003-09-23 2005-04-07 Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh + Co. Kg Module enfichable pour un capteur de liquide ou de gaz a voie de transmission decouplee par voie galvanique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851164C2 (de) * 1998-11-06 2003-04-10 Draeger Safety Ag & Co Kgaa Verfahren und Vorrichtung zum Betreiben einer elektrochemischen Meßzelle
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
DE102005045272B4 (de) * 2005-09-22 2007-10-04 Dräger Safety AG & Co. KGaA Gasmesssystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008141A (en) * 1974-10-04 1977-02-15 Horiba, Ltd. Combination pH electrode
JPS6018752A (ja) * 1983-07-13 1985-01-30 Toshiba Corp 残留塩素測定装置
DE4033052A1 (de) * 1990-10-18 1992-04-23 Hottinger Messtechnik Baldwin Kontaktlose verbindungseinrichtung zur uebertragung von messwertsignalen und energie
DE10218606A1 (de) * 2002-04-25 2003-11-06 Conducta Endress & Hauser Potentiometrischer Sensor
DE10313639A1 (de) * 2003-03-26 2004-10-07 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Elektrochemischer Gassensor
WO2005031339A1 (fr) * 2003-09-23 2005-04-07 Endress+Hauser Conducta Gesellschaft Für Mess- Und Regeltechnik Mbh + Co. Kg Module enfichable pour un capteur de liquide ou de gaz a voie de transmission decouplee par voie galvanique

Also Published As

Publication number Publication date
DE102007041238A1 (de) 2009-03-05

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