WO2009080632A1 - Dispositif et procédé de réglage et/ou de contrôle d'un signal de sortie d'élément de détection dans une zone fonctionnelle d'un détecteur - Google Patents

Dispositif et procédé de réglage et/ou de contrôle d'un signal de sortie d'élément de détection dans une zone fonctionnelle d'un détecteur Download PDF

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Publication number
WO2009080632A1
WO2009080632A1 PCT/EP2008/067666 EP2008067666W WO2009080632A1 WO 2009080632 A1 WO2009080632 A1 WO 2009080632A1 EP 2008067666 W EP2008067666 W EP 2008067666W WO 2009080632 A1 WO2009080632 A1 WO 2009080632A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
arrangement according
output signal
sensor element
flow
Prior art date
Application number
PCT/EP2008/067666
Other languages
German (de)
English (en)
Inventor
Robert Buck
Original Assignee
Robert Buck
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 Robert Buck filed Critical Robert Buck
Publication of WO2009080632A1 publication Critical patent/WO2009080632A1/fr

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • 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
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G01F1/26—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters of the valve type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K2017/9706—Inductive element

Definitions

  • the cost of the arrangement for setting and / or control of the sensor element output signal which are expediently used for carrying out the method, to be kept low in order to achieve a corresponding customer acceptance.
  • the arrangement for setting and / or control of Sensorelement- output signal is based on at least one sensor having at least one sensor element which provides an electrical, in particular analog output signal and wherein the output signal by mechanical and / or electrical actions, eg. B. by changing a mechanical bias of a H ub stressess is variable.
  • the evaluation unit checks whether the electrical sensor element output signal lies in a predetermined value range or functional range.
  • the rating unit is also associated with a display module.
  • the display module is able to display the result prepared by the evaluation unit, for example by means of an optoelectronic assembly, which in the simplest case is an or comprises a plurality of light emitting diodes (LED).
  • LED light emitting diodes
  • In the functional area can be one or more, predetermined operating points of the sensor.
  • the electrical sensor element output signal is applied to the coupling module.
  • the base of the transistor of the coupling-out module is connected.
  • the transistor of the coupling-out module can be realized as a current mirror circuit.
  • the ratio of the aforementioned resistors more or less determines the section that can be displayed by the display module, wherein the resistance of the second resistor at the emitter of the transistor of the transmission module defines the maximum current that flows through the optoelectronic assembly or the means of the display device.
  • Fig. 1 is a block diagram of the arrangement according to the invention.
  • Fig. 2 shows a basic circuit for realizing the solution described in the arrangement according to the invention
  • Fig. 6 shows a typical sensor waveform with a predetermined
  • Fig. 14 is a Schrägsitzventils with valve housing and housing branch, wherein two sensors are provided.
  • the inventive arrangement according to FIG. 1 has the advantage that the evaluation unit 150 is preferably connectable to a stabilized voltage supply U BI , wherein the display module 140, which has an increased power requirement due to the power requirement of the display, supplies an unstabilized voltage supply U B2 can be.
  • the coupling-in module 110 is supplied with the voltage U E , which corresponds to the output voltage of the sensor element.
  • the decoupling module 120 is designed as a voltage-current converter with at least one PNP transistor T A M.
  • the current Ii is a function of the input voltage U E according to the relationship UE - 0.7 V by REM, where REM is the emitter resistance of the transistor TEM.
  • the amount of 0.7 V corresponds to the base-emitter voltage of the N PN transistor T E M -
  • the current I 2 at the output of the decoupling module is a function of U 2 , d. H. the voltage falling across the resistor R A M, according to the relationship R A M • Ii / RA, where RA represents the emitter resistance of the transistor T A M.
  • the resistor D in series diode D acts as a compensation diode. Via this diode, the voltage Ü BE decreases, which corresponds to the base-emitter junction of the PN P transistor TAM.
  • the collector of the transistor T A M of the decoupling module 2 is connected to the base of a transistor T UM of the transmission module 3, wherein the base of the transistor T UM via a first resistor Rx and the emitter of the transistor T UM via a second resistor Ry on negative operating voltage potential are connected.
  • the ratio of the resistances Rx to Ry determines the detail that can be displayed by the display module 4.
  • a current I 3 is driven through the display unit, wherein this current z. B. values can reach up to 10 mA in order to effect an effective operation, ie sufficient brightness of the light-emitting diodes of the display module 140.
  • the evaluation unit 150, BE will only reach a display area when the voltage UE exceeds the zener voltage at the diode Z 3 of 6 V.
  • the display area is left when the voltage UE is the sum of the zener voltage of the diodes Z 2 and Z 3 , that is 12 V in the example shown exceeds.
  • a through-bore 21 is made in the housing 2 in the housing 2 in order to receive a screw-in sensor element 26 with a corresponding measuring cell 27.
  • the definition of such a functional area also has the advantage that the signaling of the functional area is not only helpful in the calibration of the sensor, but also makes it possible to monitor the functionality of the flow sensor in use.
  • the lifting body If there is no flow at the sensor, for example, by shutting off the line or by a specific operating situation, then the lifting body is in the fault-free state in its rest position and the intended LED lights. If, by contrast, the lifting element is blocked, for example, or soiled that the rest position is no longer reached is a LED lights up in flow-free case no longer and thus indicates a fault in the flow sensor.
  • the provision of a functional area also has the advantage that the adjustment of an operating point can be considerably facilitated. Instead of positioning the sensor in the usual way to a switching point, it is sufficient for the procedure according to the invention to bring the sensor into a predetermined functional range.
  • the area center can be found.
  • the specification of a functional area is not necessarily associated with the assignment of an operating point or definition of a switching threshold.
  • the flow sensor can be designed, for example, such that it reacts only to changes in flow.
  • the functional area is preferably determined such that the functional area U B i selects a sensor signal area with the greatest possible signal slope.
  • a functional range U ß i is spanned in the range of small sensor voltages.
  • the signaling of a sensor voltage U E which within the preferred functional range U B i is located, the sensor distance can be set quickly and reliably. In the further operation, the signaling also allows a Fu ntechnischskontrolle.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention concerne un dispositif et un procédé de réglage et/ou de contrôle d'un signal de sortie d'élément de détection dans une zone fonctionnelle d'un détecteur comportant au moins un élément de détection fournissant un signal de sortie électrique, le signal de sortie pouvant être modifié par des actions mécaniques et/ou électriques, le détecteur comportant également au moins un dispositif inductif ou magnétique et un corps dont l'écart relatif par rapport à un élément de détection varie indépendamment de l'écoulement. L'élément de détection fournit un signal de sortie électrique analogique dépendant, dans une certaine mesure, du mouvement du corps et donc du débit ou du courant d'un fluide. Une unité d'évaluation est prévue pour examiner si le signal de sortie électrique d'élément de détection est situé dans une zone fonctionnelle prédéfinie, l'unité d'évaluation étant connectée à un module d'affichage et émettant une valeur lorsqu'un signal de sortie d'élément de détection est présent dans la zone fonctionnelle. Côté procédé, des actions mécaniques et/ou électriques permettent de régler le signal de sortie pour une position préférée du corps de telle manière que le signal est situé dans une zone fonctionnelle prédéfinie, l'atteinte de la zone fonctionnelle étant déterminée et affichée ou représentée.
PCT/EP2008/067666 2007-12-20 2008-12-16 Dispositif et procédé de réglage et/ou de contrôle d'un signal de sortie d'élément de détection dans une zone fonctionnelle d'un détecteur WO2009080632A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007061553 2007-12-20
DE102007061553.3 2007-12-20

Publications (1)

Publication Number Publication Date
WO2009080632A1 true WO2009080632A1 (fr) 2009-07-02

Family

ID=40524897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/067666 WO2009080632A1 (fr) 2007-12-20 2008-12-16 Dispositif et procédé de réglage et/ou de contrôle d'un signal de sortie d'élément de détection dans une zone fonctionnelle d'un détecteur

Country Status (2)

Country Link
DE (1) DE102008062538A1 (fr)
WO (1) WO2009080632A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011004743B4 (de) * 2011-02-25 2014-03-20 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Flusssensor und Verfahren zum Erfassen eines Flusses
DE102015223636B4 (de) * 2014-12-12 2016-11-17 Ifm Electronic Gmbh Schaltung für einen Analogsensor
DE102014225769B4 (de) 2014-12-12 2016-11-10 Ifm Electronic Gmbh Schaltung für einen Analogsensor
CN107219073B (zh) * 2017-08-07 2023-07-11 成都秦川物联网科技股份有限公司 阀到位检测装置与阀到位检测系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034195A1 (de) * 1980-09-11 1982-04-01 Kaiser Fototechnik Gmbh & Co Kg, 6967 Buchen Mess- und schaltgeraet fuer belichtungs- und entwicklungsgeraete
EP0084225A1 (fr) * 1981-12-09 1983-07-27 Vickers Incorporated Débitmètre avec domaine de mesure étendu pour des courants lents
DE9010779U1 (de) * 1990-07-19 1990-10-18 Pepperl & Fuchs Gmbh, 6800 Mannheim Induktiver Näherungsschalter mit erhöhter Empfindlichkeit
EP0505958A1 (fr) * 1991-03-23 1992-09-30 Paul Dipl.-Ing. Hess Débitmètre
US5827978A (en) * 1994-12-22 1998-10-27 Microhydraulics, Inc. Flow transducer
DE10025662A1 (de) * 2000-05-24 2001-12-06 Balluff Gebhard Feinmech Näherungssensor
WO2005124291A1 (fr) * 2004-06-16 2005-12-29 Robert Buck Capteur de debit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034195A1 (de) * 1980-09-11 1982-04-01 Kaiser Fototechnik Gmbh & Co Kg, 6967 Buchen Mess- und schaltgeraet fuer belichtungs- und entwicklungsgeraete
EP0084225A1 (fr) * 1981-12-09 1983-07-27 Vickers Incorporated Débitmètre avec domaine de mesure étendu pour des courants lents
DE9010779U1 (de) * 1990-07-19 1990-10-18 Pepperl & Fuchs Gmbh, 6800 Mannheim Induktiver Näherungsschalter mit erhöhter Empfindlichkeit
EP0505958A1 (fr) * 1991-03-23 1992-09-30 Paul Dipl.-Ing. Hess Débitmètre
US5827978A (en) * 1994-12-22 1998-10-27 Microhydraulics, Inc. Flow transducer
DE10025662A1 (de) * 2000-05-24 2001-12-06 Balluff Gebhard Feinmech Näherungssensor
WO2005124291A1 (fr) * 2004-06-16 2005-12-29 Robert Buck Capteur de debit

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