EP2409119A1 - Tête à capteurs multiples - Google Patents

Tête à capteurs multiples

Info

Publication number
EP2409119A1
EP2409119A1 EP10707800A EP10707800A EP2409119A1 EP 2409119 A1 EP2409119 A1 EP 2409119A1 EP 10707800 A EP10707800 A EP 10707800A EP 10707800 A EP10707800 A EP 10707800A EP 2409119 A1 EP2409119 A1 EP 2409119A1
Authority
EP
European Patent Office
Prior art keywords
sensor
sensor head
head
sensors
location
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Withdrawn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
EP10707800A
Other languages
German (de)
English (en)
Inventor
Josef Glaser
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.)
Kistler Holding AG
Original Assignee
Kistler Holding AG
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 Kistler Holding AG filed Critical Kistler Holding AG
Publication of EP2409119A1 publication Critical patent/EP2409119A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24Housings ; Casings for instruments
    • G01D11/245Housings for sensors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

Definitions

  • the invention relates to a multi-sensor head for installation in an installation opening of a process exposable workpiece, a measuring system with a multi-sensor head, the use of two or more sensors of different types in.
  • combination sensors are known in which, for example, two or more elementary sensors are permanently installed in a common housing.
  • a combination sensor is disclosed, for example, in AT 505 077 A2, which comprises a pressure sensor which can be inserted into a bore opening into a combustion chamber of an internal combustion engine, wherein the pressure sensor has an optically opening into the combustion chamber light guide, wherein in the mouth region in the Combustion chamber provided an optical coupling element. see is.
  • AT 505 077 A2 which comprises a pressure sensor which can be inserted into a bore opening into a combustion chamber of an internal combustion engine, wherein the pressure sensor has an optically opening into the combustion chamber light guide, wherein in the mouth region in the Combustion chamber provided an optical coupling element. see is.
  • an optical measurement and a pressure measurement in the smallest space is thus possible at the same time.
  • Such combination sensors are also known in other embodiments in the prior art.
  • the temperature may be important in addition to a measurement signal that is actually of interest because the actual measurement signal of interest is influenced by the temperature and the temperature signal is therefore required for correction.
  • combination sensors which additionally comprise a temperature sensor, for example in the form of a thermocouple.
  • a central measuring range such as the pressure in the combustion chamber of an internal combustion engine, in combination with several other variables, for example in combination with the temperature or a heat flow, or the pressure in combination with a strain measurement or an optical measurement, etc. must be determined.
  • a corresponding set of different combination sensors must be made available, each of which comprises, for example, a pressure sensor and in each case a further additional sensor for measuring a further parameter of interest.
  • the object of the invention is therefore to provide a novel muI tisensorkopf which avoids the known from the prior art disadvantages, and the simultaneous measurement of several phenomena on one and the same assembly allows the sensor to be exchanged without changing the sensor head when changing to a different type of sensor.
  • the invention thus relates to a multi-sensor head for installation in an installation opening of a workpiece which can be exposed to a process, wherein the multi-sensor head comprises a first sensor location for receiving a first sensor, and at least one second sensor location for receiving a second sensor, so that first with the first sensor Measurement data and with the second sensor second measurement data can be detected.
  • the second sensor location is configured in such a way and arranged in the multi-sensor head that it can be equipped interchangeably with sensors of different types in order to carry out a measurement.
  • the invention further relates to a measuring system with a multi-sensor head, the use of two or more replaceable sensors of different types in a multi-sensor head, as well as a workpiece with a multi-sensor head of the present invention.
  • the multi-sensor head of the present invention thus makes it possible for the first time to carry out a plurality of different measured variables at one and the same mounting location in different sensor combinations, without the multisensor head having to be exchanged expensively when changing over to a sensor of a different type.
  • the multi-sensor head according to the invention does not have to be disassembled and replaced by another sensor head comprising the required sensor, but the sensor that is no longer needed can simply be removed from its sensor location of the multi-sensor head and against a sensor other type, which is needed for the planned new measurement, without having to remove the multi-sensor head.
  • connection cable of a thermocouple of course has different requirements for the connections, lines and insulation than, for example, a piezoelectric measuring element.
  • the multi-sensor head has no connection cabling of the interchangeable sensors.
  • the most important feature of the multisensor is that it allows as many measurements as possible simultaneously and in flexible combinations with as few holes in the process area as possible.
  • the invention further relates to the use of two or more sensors of different types in a multi-sensor head of the present invention, wherein the sensors of different types are designed such that they can be placed interchangeably in one and the same sensor location of the multi-sensor head.
  • the invention also relates to a measuring system for measuring a measured variable in a workpiece comprising a multi-sensor head according to the invention, and a sensor which is suitable for installation in the multi-sensor head.
  • the invention also includes a process exposable workpiece, which in particular comprises a process space, wherein the process space in particular a heat engine, a Hubkolbenbrennkraftmaschine, a rotary piston engine, a gas turbine, an aircraft engine, an injection molding machine or an injection molding tool with a in an opening of the Workpiece built multi-sensor head of the present invention.
  • a process space in particular a heat engine, a Hubkolbenbrennkraftmaschine, a rotary piston engine, a gas turbine, an aircraft engine, an injection molding machine or an injection molding tool with a in an opening of the Workpiece built multi-sensor head of the present invention.
  • FIG. 1 shows a multi-sensor head according to the invention for receiving two replaceable sensors
  • FIG. 2 shows an exemplary embodiment with a non-exchangeable base sensor
  • FIG. 3 shows a further embodiment according to FIG. 2;
  • FIG. 4 shows an exemplary embodiment according to FIG. 3 with space-optimized base sensor
  • FIG. 5 shows a second embodiment according to FIG. 2 with a central clearance in the base sensor
  • FIG. 6 shows a two-part multi-sensor head with base part and supplementary part
  • FIG. 7 shows a second embodiment according to FIG. 6;
  • FIG. 8 shows a triple multi-sensor head with an additional sensor in the base sensor.
  • FIG. 1 shows a schematic representation of a first simple embodiment of a multi-sensor head according to the invention for accommodating two exchangeable sensors, wherein the multi-sensor head according to the invention is designated in the following by the reference numeral 1.
  • the multi-sensor head 1 is installed in a cylinder head 3 of an internal combustion engine in an installation opening 2 in order to carry out different measurements in the combustion chamber 31.
  • the multi-sensor head 1 in this case comprises two sensor locations 4, 5, which are both designed in the form of a bore such that each of the two sensor locations 4, 5 can be equipped interchangeably with sensors 41, 51, 52 of different types for performing different measurements.
  • the bore preferably comprises a screw connection which is not explicitly shown in FIG. 1, so that the exchangeable sensor 41, 51, 52 can simply be screwed into the bore.
  • the sensors of different types can each measure a different physical measured variable, and / or have a different measuring principle, and / or have a different sensitivity or a different measuring range.
  • 2 shows an embodiment with a centrally arranged first sensor 41 is shown schematically, in which case the first sensor 41 is a non-exchangeable base sensor 61, and a second sensor location 5 with respect to a central axis of the multi-sensor head 1 asymmetric in the shell of Base tank head 1 is arranged.
  • the non-exchangeable base sensor 61 is a pressure sensor 61, the second sensor location 5 not being equipped here with a sensor 51, 52, eg a thermocouple for surface temperature measurement.
  • a base variable such as, for example, the pressure in a process chamber 31 of the workpiece 3 has to be measured successively simultaneously with several other variables.
  • the pressure and the temperature in the process chamber 31 can be measured at the same time.
  • the temperature sensor 51, 52 which is provided exchangeably in the sensor station 5, is then exchanged for a sensor 51, 52 of a different type in order to measure another quantity simultaneously with the pressure in the further measurement.
  • the sensor 41, 51, 52, 61 may, for example, a sensor for measuring a heat flow, or a temperature, or an acceleration, or an optical signal, or a sensor for determining the top dead center in a Hubkol- benmaschine, or a sensor for measuring a distance, or a deformation, or a force, or a pressure.
  • the sensor 41, 51, 52, 61 is in particular a piezoelectric sensor, a piezoresistive sensor, a sensor with a thermocouple or a temperature-dependent e- lektrischen resistance or a semiconductor diode, or the sensor 41, 51, 52, 61 is a frequency-analog Sensor, a - Q_
  • Capacitive sensor an inductive sensor, an optical sensor, a mechanical sensor, a sensor with a strain gauge or a sensor with a Hall element.
  • the process space 31 of the workpiece 3 is in particular a combustion chamber of a heat engine, in particular a cylinder of a reciprocating internal combustion engine, or a combustion chamber of a
  • Rotary piston engine, or a process chamber 31 of a turbine, in particular a gas turbine or an aircraft engine, or the process chamber 31 is a space of an injection molding machine or an injection molding tool.
  • FIG. 3 shows a further exemplary embodiment according to FIG. 2 with a first sensor location 4, in which a first sensor 41 is provided as a permanently installed base sensor 61, in which case a relatively larger one in the second sensor location 5, in contrast to FIG second sensor 51, 52 is installed and the base sensor space 6 and the second sensor location 5 are arranged substantially symmetrically to the central axis of the multi-sensor head 1.
  • Fig. 4 shows an embodiment according to FIG. 3 with a space-optimized first sensor 41, which is installed as a fixed
  • a second sensor location 5 is also used here
  • Receiving a second sensor 51, 52 is provided.
  • the base sensor 61 is installed extremely space-saving in the multi-sensor head 1, so that sufficient installation space for the replaceable sensors 51, 52 remains.
  • Multi-sensor head 1 and more than a second sensor slot 5 for receiving replaceable sensors 51, 52 may be provided, whereby the inventive multi-sensor head 1 still more flexible and easier to use, because at the same time more than two measurands in the process chamber 31 can be measured.
  • the first sensor location 4 and / or the second sensor location 5 and / or the basic sensor location 6 can in particular also be configured and arranged in the multi-sensor head such that in the first sensor location 4 and / or in the second sensor location 5 and / or in the base sensor location 6 two or more sensors of the same or different types can be placed simultaneously.
  • FIG. 5 shows a second exemplary embodiment according to FIG. 4 with a second sensor space 5 in the base sensor 61 designed as a centric free space 5, in which centric free space 5, for example, a heat flow with an exchangeable heat flow sensor 51, 52 in the process space 31 is particularly advantageous leaves while.
  • a base size such as the pressure or the temperature in the process chamber 31, can be monitored simultaneously with the permanently installed sensor 41, 61. If, for another application, not the heat flow but, for example, a temperature is required, the heat flow sensor 51, 52 can simply be exchanged for a temperature sensor 51, 52.
  • FIG. 6 a two-part multi-sensor head 1 with a base part 7 and an additional part 8 is shown schematically in FIG. 6, which are assembled detachably at a separation point II.
  • the replaceable sensor 51, 52 is thus not screwed into a bore, as was explained with reference to FIG. 1 by way of example. Rather, the replacement of the sensor 51, 52 take place in that the supplementary part 8, in which a sensor of a certain type is provided, against another supplementary part 8aded- is replaced, which contains a sensor of a different type.
  • the sensor 51, 52 can of course also be provided interchangeably in the supplementary part 8, so that when changing to another sensor 51, 52 not the entire supplemental part 8 is replaced, but only the sensor 51, 52 in the supplementary part 8 is exchanged.
  • a second embodiment according to FIG. 6 is shown, in which a deformation sensor 51, 52 is provided in the supplementary part 8, which is placed on the base part 7 at the separation point II, and in the base part 7, a first sensor 41 in a first Sensor location 4 is provided, wherein the first sensor 41 may be either a replaceable sensor or a non-replaceable base sensor 61.
  • a triple multi-sensor head 1 will be explained with reference to FIG. 8 which, in addition to the second sensor 51, also has a third additional sensor 52 in the first sensor 41, which in the present example is designed as a non-exchangeable base sensor 61.
  • This is a particularly compact design, since the replaceable sensor 52 is provided within the first sensor 41 and thus requires virtually no additional space.
  • Another advantage of the multi-sensor head 1 is that in a preferred embodiment, one or more of the sensors 41, 51, 52 is interchangeable while the multi-sensor head 1 remains installed in the mounting hole 2. This is particularly advantageous when the expansion of the multi-sensor head 1 is expensive. A special effort is given, for example, if the multi-sensor head 1 must be aligned very plane to a tool wall, seals a pressurized or filled with a liquid process chamber 31 or if he from his R ⁇ uss, which is only accessible after a lot of disassembly work, is installed on the front. An interchangeability of one or more sensors 41, 51, 52 in the installed state of the multi-sensor head 1 then saves a lot of work.
  • one or more sensor locations 4, 5 are preferably designed and arranged in the multi-sensor head such that an exchange of one or more sensors 41, 51, 52 in the installed state of the multi-sensor head 1 in a workpiece 3 can be performed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

L'invention concerne une tête à capteurs multiples (1) à encastrer dans une ouverture d'encastrement (2) d'une pièce (3) pouvant être soumise à un processus, la tête à capteurs multiples comportant une première place de capteur (4) pour recevoir un premier capteur (41), au moins une deuxième place de capteur (5) pour recevoir un deuxième capteur (51, 52) de sorte que des premières données de mesure peuvent être enregistrées par le premier capteur (41) et des deuxièmes données de mesure peuvent être enregistrées par le deuxième capteur (51, 52). Selon l'invention, la deuxième place de capteur (5) est conçue et disposée dans la tête à capteurs multiples (1) de telle manière qu'elle puisse être garnie de manière interchangeable avec des capteurs (51, 52) de type différent pour effectuer une mesure. L'invention concerne également un système de mesure avec une tête à capteurs multiples (1), l'utilisation de deux capteurs (51, 52) interchangeables de type différent dans une tête à capteurs multiples (1) ainsi qu'une pièce (3) pourvue d'une tête à capteurs multiples (1) de la présente invention.
EP10707800A 2009-03-16 2010-03-04 Tête à capteurs multiples Withdrawn EP2409119A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00392/09A CH700689A1 (de) 2009-03-16 2009-03-16 Multisensorkopf.
PCT/CH2010/000055 WO2010105375A1 (fr) 2009-03-16 2010-03-04 Tête à capteurs multiples

Publications (1)

Publication Number Publication Date
EP2409119A1 true EP2409119A1 (fr) 2012-01-25

Family

ID=40809898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10707800A Withdrawn EP2409119A1 (fr) 2009-03-16 2010-03-04 Tête à capteurs multiples

Country Status (5)

Country Link
US (1) US20110283820A1 (fr)
EP (1) EP2409119A1 (fr)
JP (1) JP2012520473A (fr)
CH (1) CH700689A1 (fr)
WO (1) WO2010105375A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019917A5 (nl) * 2011-03-15 2013-02-05 Den Broeck Bram Van Inrichting voor het meten van fysische kenmerken of veranderingen in fysische kenmerken in een vel en vel dat is aangepast voor gebruik bij zulke inrichting.
DE202013002615U1 (de) * 2013-03-19 2013-04-11 Seuffer Gmbh & Co.Kg Funktionsmodul mit einer Sensorvorrichtung
BE1022051B1 (fr) * 2013-05-23 2016-02-10 Sa Cockerill Maintenance & Ingenierie Capteur de flux thermique
DE102014103721A1 (de) * 2013-12-20 2015-06-25 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optischer Sensor, insbesondere zur Bestimmung von Stoffkonzentrationen in wässrigen Lösungen mittels einer Chemilumineszenz-, Absorptions- oder Fluoreszenzmessung

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
DE2642363C2 (de) 1976-09-21 1978-10-26 Scheidt & Bachmann Gmbh, 4050 Moenchengladbach Münzspeicher
US4709678A (en) * 1985-05-31 1987-12-01 Honda Giken Kogyo Kabushiki Kaisha Uncertainty detector in feed-back control system based on combustion peak position data for internal combustion engine and ignition timing control having particular detector
ATE55467T1 (de) * 1986-02-17 1990-08-15 Hydrotechnik Gmbh Fluidisches system mit messvorrichtung.
US7007541B2 (en) * 2002-02-06 2006-03-07 In-Situ, Inc. Multi-parameter monitoring system
EP1415698A1 (fr) * 2002-10-28 2004-05-06 PTI Technologies, Inc. Dispositif de filtration utilisant des capteurs micro-électromécaniques (MEMS) intégrés
US7024920B2 (en) * 2003-09-30 2006-04-11 Rockwell Automation Technologies, Inc. Lubricity measurement using MEMs sensor
DE102004003278A1 (de) * 2004-01-21 2005-08-25 Priamus System Technologies Ag Sensor
US7779710B2 (en) * 2007-06-15 2010-08-24 Daniel Measurement And Control, Inc. Cable cover for an ultrasonic flow meter

Non-Patent Citations (1)

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Title
See references of WO2010105375A1 *

Also Published As

Publication number Publication date
WO2010105375A1 (fr) 2010-09-23
CH700689A1 (de) 2010-09-30
JP2012520473A (ja) 2012-09-06
US20110283820A1 (en) 2011-11-24

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