EP0205779A2 - Messgeber, dem der Stand von mindestens einem mechanischen Drehelement zugrundeliegt - Google Patents

Messgeber, dem der Stand von mindestens einem mechanischen Drehelement zugrundeliegt Download PDF

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Publication number
EP0205779A2
EP0205779A2 EP86104447A EP86104447A EP0205779A2 EP 0205779 A2 EP0205779 A2 EP 0205779A2 EP 86104447 A EP86104447 A EP 86104447A EP 86104447 A EP86104447 A EP 86104447A EP 0205779 A2 EP0205779 A2 EP 0205779A2
Authority
EP
European Patent Office
Prior art keywords
transducer
revolving
revolving element
nonius
mated
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.)
Granted
Application number
EP86104447A
Other languages
English (en)
French (fr)
Other versions
EP0205779A3 (en
EP0205779B1 (de
Inventor
Vittorio Ponzio
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.)
Fabbriche Riunite Misuratori Sacofgas SpA
Original Assignee
Fabbriche Riunite Misuratori Sacofgas SpA
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 Fabbriche Riunite Misuratori Sacofgas SpA filed Critical Fabbriche Riunite Misuratori Sacofgas SpA
Publication of EP0205779A2 publication Critical patent/EP0205779A2/de
Publication of EP0205779A3 publication Critical patent/EP0205779A3/en
Application granted granted Critical
Publication of EP0205779B1 publication Critical patent/EP0205779B1/de
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/06—Counters with additional facilities for printing or separately displaying result of count

Definitions

  • the present invention refers to a measuring transducer based on the positioning of at least one revolving element.
  • the device can be of great advantage when applied in the measuring of angles, angular displacements, number of rotations and various indications of a mechanical measuring meter for fluid, gas or electric measurements.
  • a meter is made up of a group of inter-acting revolving elements, controlled by an operating gear the movement of which is associated to the quantity of fluid or gas passing in a given duct, so to have a correlation between the fluid or gas quantity passing through and the number of rotations, or fractions of rotations done by the revolving elements of the meter.
  • Each revolving element is divided into a predeter mined number of zones, each bearing a number. The revolving elements are mated in such a way that as soon as one terminates a complete turn, it causes the rotation at a predetermined angle of the adjoining one.
  • a jig placed in a predetermined position allows the visualization of a constant portion of the revolving elements and the visual indication of the numbers or fractions of rotations done by the group of elements.
  • no internal transducer is foreseen for the detection of the number of rotations and their transduction in a suitable electric signal, so as to have a record of the fluid or gas consumption on a memory for subsequent elaborations.
  • Aim of the present invention is thus to carry out a device allowing for the transduction of the measurement pertaining to the number of rotations detected by a meter, into an electrical quantity able to be suitably treated, so as to have the most accurate detection, while still permitting a reliable functioning of the mechanical group and foreseeing a transducer intimately connected to the meter already known.
  • a second mated revolving transducer ⁇ is foreseen, acting as a dividing "nonius", in which the rotations or portions of rotations made by each revolving element and by the second trasnducer are detected as electric signals by appropriate sensors and sent to a control device for these signals.
  • a meter 10 placed inside a container 9 which is made up of a set of revolving elements lla, 11b...11h suitably mated.
  • the revolving elements 11 are mated one to the other by means of gears 21a, 21b, etc. so that at each rotation of the revolving element lla a partial rotation is caused in the adjoining element llb, and so on.
  • a second transducer formed by a disc 14 used as a first transducer, having openings 25, is associated coupled by means of gears.
  • a disc 14 is shown in detail in Fig. 3.
  • each disc 14 and the corresponding revolving element 11 takes place by means of gears.
  • Fig. 2 shows an exemplary mating between the revolving element llc attached to a pinion 13c which engages in the gear 15c, the latter rotating integral to the disc-transducer 14c.
  • each codifying disc provided with openings, placed according to a predetermined binary code, a detector is provided, for instance photo-sensors 16, which are to detect the disposition of the openings in the disc section passing in front of them.
  • Each detecting element 16 of the codifying disc 14 sends the signal to a suitable control device 18. Also the position of each revolving element 11 is signalled to the control device 18.
  • the control device 18 is in turn connected for instance to a display 20 or to a suitable interface for the dispatching of the detected signal to a suitable centralized device (Fig. 4).
  • the second transducer 14 formed by a disc provided with openings 25 is a tranducer, or "coder" of the absolute type working as a dividing "nonius" of the traditional devices. This in the aim to be able to detect the small displacements and to obtain a maximum positioning accuracy of the measuring unit.
  • the mating between the two tranducers 11 and 14 is made in a particular way in the aim to simultaneously obtain the synchronism in the measuring of the passing instant between the data supplied by the faster transducer and the more roughly measuring one.
  • the two trans ducers are angularly offset so that the "nonius" transducer is delayed in respect to the corresponding signal of the other transducer.
  • the "nonius" transducer must reach the zero delayed of an interval comprised between 1/5 and 1/10 of a division.
  • the control circuit 18 of the signal suitably synchronizes among them the signals detected by the two transducers and does not change for instance the signal sent to a display 20 or to a subsequent signal-control device before the other transducer as well has reached the commuting point. In this way the real value remains within the fixed tolerance.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Volume Flow (AREA)
EP86104447A 1985-04-02 1986-04-01 Messgeber, dem der Stand von mindestens einem mechanischen Drehelement zugrundeliegt Expired EP0205779B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2019585 1985-04-02
IT20195/85A IT1183556B (it) 1985-04-02 1985-04-02 Dispositivo di trasduzione di misure in base al posizionamento di almeno un elemento girevole meccanico

Publications (3)

Publication Number Publication Date
EP0205779A2 true EP0205779A2 (de) 1986-12-30
EP0205779A3 EP0205779A3 (en) 1988-06-29
EP0205779B1 EP0205779B1 (de) 1991-06-12

Family

ID=11164617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104447A Expired EP0205779B1 (de) 1985-04-02 1986-04-01 Messgeber, dem der Stand von mindestens einem mechanischen Drehelement zugrundeliegt

Country Status (4)

Country Link
EP (1) EP0205779B1 (de)
DE (1) DE3679720D1 (de)
ES (1) ES293322Y (de)
IT (1) IT1183556B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325565A1 (de) * 1988-01-18 1989-07-26 FABBRICHE RIUNITE MISURATORI SACOFGAS S.p.A Sensoreinrichtung
GB2219112A (en) * 1988-05-28 1989-11-29 Smith Meters Ltd Counter
GB2230629A (en) * 1989-02-28 1990-10-24 City Communications Ltd Reading meters
DE19920393A1 (de) * 1999-05-04 2000-11-09 Elster Produktion Gmbh Anordnung zum Bestimmen eines Volumens eines Gasstroms

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1415773A (fr) * 1963-10-11 1965-10-29 Litton Industries Inc Vernier optique pour convertisseurs analogiques-numériques
US3566827A (en) * 1968-02-19 1971-03-02 Servo Products Co Position indicator for machine tools
US4142096A (en) * 1977-11-11 1979-02-27 Lehnert Daryl A Events accumulator device and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325565A1 (de) * 1988-01-18 1989-07-26 FABBRICHE RIUNITE MISURATORI SACOFGAS S.p.A Sensoreinrichtung
US5010334A (en) * 1988-01-18 1991-04-23 Fabbriche Riunite Misuratori Sacofgas S.P.A. Transducer device
GB2219112A (en) * 1988-05-28 1989-11-29 Smith Meters Ltd Counter
GB2219112B (en) * 1988-05-28 1992-08-26 Smith Meters Ltd Counter
GB2230629A (en) * 1989-02-28 1990-10-24 City Communications Ltd Reading meters
DE19920393A1 (de) * 1999-05-04 2000-11-09 Elster Produktion Gmbh Anordnung zum Bestimmen eines Volumens eines Gasstroms
EP1050747A3 (de) * 1999-05-04 2002-09-18 Elster GmbH Anordnung zum Bestimmen eines Volumens eines Gasstroms
DE19920393B4 (de) * 1999-05-04 2009-09-24 Elster Gmbh Anordnung zum Bestimmen eines Volumens eines Gasstroms

Also Published As

Publication number Publication date
ES293322U (es) 1986-08-16
EP0205779A3 (en) 1988-06-29
DE3679720D1 (de) 1991-07-18
IT8520195A0 (it) 1985-04-02
IT1183556B (it) 1987-10-22
EP0205779B1 (de) 1991-06-12
ES293322Y (es) 1987-05-01

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