EP0266635A2 - Méthode pour l'identification automatique du type d'un instrument de mesure d'un dispositif de saisie et de transmission de valeurs mesurées par fibre optique - Google Patents

Méthode pour l'identification automatique du type d'un instrument de mesure d'un dispositif de saisie et de transmission de valeurs mesurées par fibre optique Download PDF

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Publication number
EP0266635A2
EP0266635A2 EP87115464A EP87115464A EP0266635A2 EP 0266635 A2 EP0266635 A2 EP 0266635A2 EP 87115464 A EP87115464 A EP 87115464A EP 87115464 A EP87115464 A EP 87115464A EP 0266635 A2 EP0266635 A2 EP 0266635A2
Authority
EP
European Patent Office
Prior art keywords
measuring head
fiber
control
type
signal
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Withdrawn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
EP87115464A
Other languages
German (de)
English (en)
Other versions
EP0266635A3 (fr
Inventor
Martin Maschek
Georg Dr. Mastner
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0266635A2 publication Critical patent/EP0266635A2/fr
Publication of EP0266635A3 publication Critical patent/EP0266635A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres

Definitions

  • the present invention relates to a method for automatically identifying the type of measuring head of a fiber-optic measured value acquisition and transmission device. It relates in particular to a method according to the preamble of patent claim 1.
  • Fiber optic data acquisition and transmission devices are used for the transmission of electrical measured values from an environment which is strongly disturbed by electromagnetic interference or over larger potential differences.
  • the measuring head of these devices is usually powered by a built-in battery.
  • the measurement values are transmitted via a measurement signal fiber.
  • This remote control includes switching the head on and off, selecting the range and transmitting a calibration signal (typically a rectangle) generated in the measuring head.
  • the control unit can be designed in such a way that it can operate different types of measuring head (other measuring ranges and / or other input impedances). A corresponding switchover of the control unit is then necessary to adapt to the respective type of measuring head. If this is forgotten or carried out incorrectly, incorrect results can be obtained or the measuring head can even be damaged by incorrect manipulation.
  • the stated and other objects are achieved by specifying a method for automatically identifying the type of measuring head of a fiber-optic measured value acquisition and transmission device with the features of claim 1.
  • the measurement value acquisition and transmission unit shown schematically therein has a measurement head 1 and a control unit 2. These are connected to one another via a measurement signal fiber 3 and a control signal fiber 4.
  • the measurement signal fiber 3 and the control signal fiber 4 are both optical fibers. For example, they bridge a large potential difference or a zone with strong electromagnetic interference.
  • the measuring head 1 has an input 5. Via this input 5, the measuring head 1 receives an electrical signal to be detected, for example with regard to its amplitude.
  • the input 5 is led to an electronic signal processing unit 6, in which, for example, the amplitude determination is carried out and a corresponding electronic measurement signal is generated.
  • the output of a calibrator 10 is applied to the electronic signal processing unit 6.
  • the electronic signal processing unit 6 and the calibrator 10 are controlled by a first control logic 9.
  • the electronic signal processing unit 6 is connected to the measurement signal fiber 3 via an electro / optical converter 7.
  • the input of the control logic 9 is connected to the control signal fiber 4 via an opto / electronic converter 8.
  • the control unit 2 has an electronic signal processing unit 12. This is connected on the input side to the measurement signal fiber via an opto / electronic converter 11. Its output forms the measurement signal output 13 of the control unit 2.
  • the control unit 2 also contains a control logic 15.
  • This second control logic 15 is connected to the control signal fiber 4 via an electro / optical converter 14. Another output acts on the electronic signal processing unit 12. An output of this signal processing unit conversely acts on the second control logic. Control commands from outside the control unit 2 can be entered into the second control logic 15 via a control input 16.
  • the measurement signal fiber 3 is used to transmit the measurement signal generated by the electronic signal processing unit 6 in the measurement head 1.
  • a calibration signal generated by the calibrator 10 is also transmitted via it.
  • the control signal fiber 4 is used for the transmission of control signals from the control unit 2 to the measuring head 1, in particular for remote control thereof.
  • the measuring head 1 can also be remotely connected via the control signal fiber 4.
  • a control signal is first generated by the second control logic 15, for example upon a corresponding control command from the outside via the control input 16.
  • the first control logic 9 in the measuring head 1 causes the calibrator 10 to emit a calibration signal.
  • the calibration signal is transmitted to the electronic signal processing unit 12 in the control unit 2 via the electronic signal processing unit 6 and the measurement signal fiber 3.
  • the calibration signal is also fed to the second control logic 15.
  • the calibration signal is preferably a square wave signal.
  • the frequency of the calibration signal is characteristic of the special type of measuring head 1. Another type of measuring head would deliver a calibration signal with a different frequency.
  • the second control logic 15 analyzes the frequency of the calibration signal and determines the type of the connected measuring head from this.
  • the corresponding information is then used to adapt the electronic signal processing unit 12 to the measuring head 1.
  • the adaptation can consist, for example, of switching the scaling factor of the latter unit (12).
  • the second control logic 15 would have to generate a corresponding switchover or adaptation command.
  • the calibrator 10 emits the calibration signal, the generation of a measurement signal corresponding to the signal at the input 5 by the electronic signal processing unit 6 is prevented by the first control logic 9 in the measurement head 1.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
EP87115464A 1986-11-05 1987-10-22 Méthode pour l'identification automatique du type d'un instrument de mesure d'un dispositif de saisie et de transmission de valeurs mesurées par fibre optique Withdrawn EP0266635A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637689A DE3637689C1 (de) 1986-11-05 1986-11-05 Faseroptische Messwerterfassungs- und Uebertragungseinrichtung
DE3637689 1986-11-05

Publications (2)

Publication Number Publication Date
EP0266635A2 true EP0266635A2 (fr) 1988-05-11
EP0266635A3 EP0266635A3 (fr) 1988-12-21

Family

ID=6313222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115464A Withdrawn EP0266635A3 (fr) 1986-11-05 1987-10-22 Méthode pour l'identification automatique du type d'un instrument de mesure d'un dispositif de saisie et de transmission de valeurs mesurées par fibre optique

Country Status (3)

Country Link
US (1) US4810891A (fr)
EP (1) EP0266635A3 (fr)
DE (1) DE3637689C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273840A (en) * 1992-12-09 1994-06-29 Sony Corp Optically transmitting signals between measurement devices

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637689C1 (de) * 1986-11-05 1987-06-25 Bbc Brown Boveri & Cie Faseroptische Messwerterfassungs- und Uebertragungseinrichtung
US4977329A (en) * 1988-05-23 1990-12-11 Hughes Aircraft Company Arrangement for shielding electronic components and providing power thereto
US5010450A (en) * 1988-06-10 1991-04-23 Adc Telecommunications, Inc. Front-rear modular unit
DE9108362U1 (de) * 1991-04-25 1991-10-31 Conrad Electronic GmbH, 8452 Hirschau Vorrichtung zur Übertragung von Daten
US5162935A (en) * 1991-06-19 1992-11-10 The United States Of America As Represented By The Department Of Energy Fiber optically isolated and remotely stabilized data transmission system
DE4240721A1 (de) * 1992-12-03 1994-06-16 Siemens Ag Meßverfahren und Meßvorrichtung mit analoger optischer Signalübertragung
GB9508422D0 (en) * 1995-04-26 1995-06-14 Flotec Uk Ltd Flow meters
DE102007044554B3 (de) * 2007-07-18 2009-07-16 Siemens Ag Sensorband mit optischer Sensorfaser, Sensor mit diesem Sensorband und Verfahren zum Kalibrieren einer optischen Sensorfaser
DE102007054915A1 (de) * 2007-11-15 2009-05-20 Precitec Optronik Gmbh Messvorrichtung, Messkopf und Messkopfhalter
FR3012708B1 (fr) * 2013-10-31 2017-03-10 Hydrostadium Dispositif de commande a distance a fibre optique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH433065A (de) * 1966-02-03 1967-03-31 Bbc Brown Boveri & Cie Verfahren und Einrichtung zur Fernmessung mit Hilfe modulierter Lichtbündel
US4213119A (en) * 1976-04-29 1980-07-15 Energy Optics, Inc. Remote meter reading system providing demand readings and load control from conventional KWH meters
US4208579A (en) * 1978-02-02 1980-06-17 Vicon Products Corp. Electrically isolated control means for the illuminating source of a dental drill
US4219762A (en) * 1979-01-26 1980-08-26 Gilbert Raine M Wideband self-calibrated fiber-optic data link with fiber-optic storage
DE2935838A1 (de) * 1979-09-05 1981-04-02 Siemens AG, 1000 Berlin und 8000 München Anordnung zur signalisierung in einem sprachuebertragungssystem mit optisch gespeisten bauelementen
US4596049A (en) * 1983-12-09 1986-06-17 Ward Leonard Electric Co., Inc. Electrical control system
DD227233A1 (de) * 1984-09-14 1985-09-11 Berlin Elektro Anlagen Inst Optoelektronisches messinformationssystem
DE3637689C1 (de) * 1986-11-05 1987-06-25 Bbc Brown Boveri & Cie Faseroptische Messwerterfassungs- und Uebertragungseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273840A (en) * 1992-12-09 1994-06-29 Sony Corp Optically transmitting signals between measurement devices

Also Published As

Publication number Publication date
EP0266635A3 (fr) 1988-12-21
US4810891A (en) 1989-03-07
DE3637689C1 (de) 1987-06-25

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Inventor name: MASCHEK, MARTIN