DE10345299B3 - High accuracy, combined pressure- and temperature sensor used in injection mold for plastic, comprises infra red transmission system and sensor, with piezoelectric axial pressure sensor - Google Patents

High accuracy, combined pressure- and temperature sensor used in injection mold for plastic, comprises infra red transmission system and sensor, with piezoelectric axial pressure sensor

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Publication number
DE10345299B3
DE10345299B3 DE2003145299 DE10345299A DE10345299B3 DE 10345299 B3 DE10345299 B3 DE 10345299B3 DE 2003145299 DE2003145299 DE 2003145299 DE 10345299 A DE10345299 A DE 10345299A DE 10345299 B3 DE10345299 B3 DE 10345299B3
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DE
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Grant
Patent type
Prior art keywords
tube
infra
red
casing
quartz
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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.)
Active
Application number
DE2003145299
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German (de)
Inventor
Erhard Giese
Original Assignee
Giese, Erhard, Dr.
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
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry
    • G01J5/02Details
    • G01J5/04Casings Mountings
    • G01J5/041Mountings in enclosures or in a particular environment
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry
    • G01J5/02Details
    • G01J5/08Optical features
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry
    • G01J5/02Details
    • G01J5/08Optical features
    • G01J5/0803Optical elements not provided otherwise, e.g. optical manifolds, gratings, holograms, cubic beamsplitters, prisms, particular coatings
    • G01J5/0818Optical elements not provided otherwise, e.g. optical manifolds, gratings, holograms, cubic beamsplitters, prisms, particular coatings using waveguides, rods or tubes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry
    • G01J5/02Details
    • G01J5/08Optical features
    • G01J5/0803Optical elements not provided otherwise, e.g. optical manifolds, gratings, holograms, cubic beamsplitters, prisms, particular coatings
    • G01J5/0875Windows or their fastening arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0092Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material by electric or magnetic means
    • G01L9/08Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material by electric or magnetic means by making use of piezo-electric devices, i.e. electric circuits therefor

Abstract

An infra red transparent window (10) is located at one end, in a bore of the casing (15). Infra red radiation arriving, is led through the tube (11) by reflection at its inner surface (12), to an infra red measurement element (13). This is located at the far end of the tube. The pressure measurement section is formed by a piezoelectric quartz component (19). An infra red transparent window (10) is located at one end, in a bore of the casing (15). Infra red radiation arriving, is led through the tube (11) by reflection at its inner surface (12), to an infra red measurement element (13). This is located at the far end of the tube. The pressure measurement section is formed by a piezoelectric quartz component (19). This is positioned around the tube and gripped by the bore wall of the casing (15). It measures axial pressure exerted on the casing. The window is sapphire and tube is internally-polished metal. At least the inner surface is gold. There is a second sapphire window (16) at the far end. The tube acts radially and resiliently against the quartz element (19). The quartz element has an external circular cross section resting against the casing wall. Its internal chordal sections rest against the outside of the tube (11). The casing is highly-insulated from the tube; these two components forming the electrodes of the quartz piezoelectric sensor. The bore accepting the tube, lies centrally and axially within the casing.

Description

  • [0001]
    Die Erfindung betrifft einen Druck/Temperatur-Sensor, also einen Sensor, der dazu in der Lage ist, sowohl den Druck, als auch die Temperatur in einem bestimmten Bereich zu messen. The invention relates to a pressure / temperature sensor, ie a sensor which is able to both the pressure and the temperature in a certain range to be measured.
  • [0002]
    Solche Sensoren werden beispielsweise in einer Kunststoff-Spritzgießform verwendet. Such sensors are used for example in a plastic injection mold.
  • [0003]
    Es ist bekannt, zum einen Druck-Sensoren und zum anderen Temperatur-Sensoren als einzelne Messaufnehmer auszubilden. It is known to train a pressure-sensors and other temperature sensors as a single sensor. Es ist jedoch für die Prozesssteuerung von erheblicher Bedeutung, dass beide Messgrößen an genau derselben Stelle gemessen werden. However, it is for process control is of considerable importance that the two measured quantities are measured at exactly the same place.
  • [0004]
    Aus der From the DE 40 18 998 A1 DE 40 18 998 A1 ist ein faseroptischer Drucksensor bekannt, der mit einem Infrarot-Temperaturmesssystem versehen ist. discloses a fiber optic pressure sensor, which is provided with an infrared temperature measurement system. Aus der From the DE 195 24 146 DE 195 24 146 ist eine Drucksensor bekannt, die mit einem piezoelektrischen System versehen ist. discloses a pressure sensor which is provided with a piezoelectric system. Die The JP 01 267 426 A JP 01267426 A auf Wärmestrahlung ansprechendes Temperaturmesselement, das mit einem dieses abdichtenden Fenster versehen ist. responsive to thermal radiation temperature measuring element that is provided with a sealing of this window. Aus der From the DE 197 55 500 A1 DE 197 55 500 A1 und der and the EP 1 057 586 EP 1057586 sind weiter bereits Drucksensoren bekannt, in deren unmittelbarer Nähe sich ein konventionelles Oberflächenthermometer befindet. are further pressure sensors already known, a conventional surface thermometer is in the immediate vicinity. Diese Oberflächenthermometer sind aber zur Messung der tatsächlichen Temperatur des Spritzlings praktisch nicht geeignet, da sie zu langsam reagieren, die Messung vom jeweiligen Anpressdruck abhängig und durch thermische Kopplung zwischen der Werkzeugwandung und der Messstelle ein unvermeidlicher, erheblicher Messfehler entsteht. These surface thermometers are not practical because they react too slowly, the measurement depends on the pressure and an unavoidable, substantial measurement error caused by thermal coupling between the mold wall and the measuring point for measuring the actual temperature of the molding.
  • [0005]
    Der Erfindung liegt die Aufgabe zugrunde, einen Druck/Temperatur-Sensor zu schaffen, der eine Messung beider Größen an genau derselben Stelle ermöglicht. The invention has for its object to provide a pressure / temperature sensor, which permits measurement of both values ​​in the same position.
  • [0006]
    Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass der Infrarotsensorteil ein für IR-Strahlung durchgängiges Fenster, ein sich mit seinem einen Ende an das Fenster anschließenden, die IR-Strahlung an seiner Innenfläche reflektierend leitendes Rohr und ein an dem anderen Ende des Rohres angeordnetes IR-Messelement aufweist und das Druckmessteil durch um das Rohr angeordnete, in dem Gehäuse eingespannte, den auf das Gehäuse ausgeübten axialen Druck erfassende piezoelektrische Quarzelemente gebildet wird. According to the invention this object is achieved in that the infrared sensor part of a continuous IR radiation window, with its one end to the window adjoining the IR radiation reflective conductive on its inner surface tube and a valve disposed at the other end of the pipe IR comprises measuring element and the pressure measuring portion disposed through around the tube clamped in the housing, the pressure applied to the housing axial pressure detecting piezoelectric quartz elements is formed.
  • [0007]
    Erfindungsgemäß bilden also das Gehäuse und die Quarzelemente eine Funktionseinheit, indem axial auf die Stirnfläche des Gehäuses einwirkende Kraft oder ein auf die Stirnfläche einwirkender Druck die Quarzelemente staucht und piezoelektrische Ladungen freisetzt. According to the invention therefore, the housing and the quartz elements form a functional unit by compresses axially to the end face of the housing acting force or a pressure acting on the end face pressure, the quartz elements and releases piezo electric charges.
  • [0008]
    Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung an. The dependent claims disclose advantageous embodiments of the invention.
  • [0009]
    Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. The invention is explained below with reference to a drawing. Dabei zeigt: In which:
  • [0010]
    1 1 eine Längsschnittansicht auf einen derartigen Sensor, und a longitudinal sectional view of such a sensor, and
  • [0011]
    2 2 eine Querschnittsansicht entlang der Linie AA von a cross-sectional view taken along line AA from 1 1 . ,
  • [0012]
    Der Sensor besteht aus einem Gehäuse The sensor comprises a housing 15 15 , das ein Rohr That a pipe 11 11 aufnimmt, bei dem es sich vorzugsweise um Metallrohr, ganz besonders bevorzugt um ein aus Gold bestehendes Rohr oder aber jedenfalls um ein an seiner Innenfläche receives, which is preferably metal tube, most preferably around an existing pipe made of gold or in any case a on its inner surface 12 12 mit Gold beschichtetem Rohr gold-coated tube 11 11 handelt. is. Die Innenfläche The inner surface 12 12 des Rohres of the tube 11 11 soll dabei spiegelnd poliert sein. is intended to be mirror-polished.
  • [0013]
    Auf seiner dem zu messenden Bereich zugewandten Stirnseite wird das Gehäuse on its side facing the area to be measured, the housing end face 15 15 von einem für IR-Strahlung durchlässigen Fenster of a material transparent to IR-radiation window 10 10 , vorzugsweise einem Saphirfenster , Preferably a sapphire window 10 10 , nach außen abgedichtet. , Sealed to the outside. Das Saphirfenster The sapphire window 10 10 stößt flächig gegen einen Absatz des Gehäuses abuts flat against a shoulder of the housing 15 15 derart an, dass ein auf die Außenfläche in such a way that a to the outer surface 14 14 des Saphirfensters sapphire window 10 10 ausgeübter Druck auf das Gehäuse Pressure applied to the housing 15 15 übertragen wird. is transmitted.
  • [0014]
    Das Rohr The pipe 11 11 besteht aus einem auf seiner Innenseite consists of a on its inner side 12 12 spiegelnd poliertem Metallrohr, in dem die Wärmestrahlung durch Vielfachreflektion geleitet wird. specularly polished metal tube in which the heat radiation is passed through multiple reflection. Die Innenseite the inside 12 12 des Rohres of the tube 11 11 kann spiegelnd vergoldet sein, das Rohr may be mirror-plated, the tube 11 11 kann aber auch selbst aus Gold bestehen. but can also themselves consist of gold.
  • [0015]
    Am rückseitigen Ende des Rohres At the rear end of the tube 11 11 befindet sich ein Messelement There is a measuring element 13 13 für die IR-Strahlung. for IR radiation. Dabei handelt es sich vorzugsweise um ein sogenanntes Thermopile-Messelement, dass die Wärme-Strahlungsenergie absorbiert und in eine dazu proportionale Thermospannung wandelt. It is preferably a so-called thermopile measuring element, that the thermal radiation energy absorbed and converted into a proportional thermal voltage.
  • [0016]
    Vor dem IR-Messelement Before the IR sensing element 13 13 befindet sich ein weiteres ein Rohr there is another pipe 11 11 abschließendes zweites Saphirfenster final second sapphire window 16 16 , das als spektrales Filter dient und mindestens einen Teil der störenden Wärmestrahlung von dem IR-Messelement Which serves as a spectral filter and at least part of the disturbing heat radiation from the IR measurement element 13 13 fernhält, die von der Innenseite des Rohres keeps the tube from the inside of the 11 11 abgestrahlt wird, wenn der ganze Sensor bei erhöhter Umwelttemperatur betrieben wird. is radiated, when the entire sensor is operated at an elevated environmental temperature. Das rückseitige Ende des Rohrs The rear end of the tube 11 11 ist so ausgebildet, dass es als Aufnahme für das IR-Messelement is formed such that it as a receptacle for the IR measuring element 13 13 und dessen elektrischen Anschlüssen and its electrical terminals 17 17 dient. serves.
  • [0017]
    Konzentrisch um das Rohr Concentrically around the pipe 11 11 sind in Vertiefungen in der Innenwandung der Bohrung des Gehäuses in recesses in the inner wall of the bore of the housing 15 15 eingespannte piezoelektrische Quarzelemente clamped piezoelectric quartz elements 19 19 angeordnet, die ringförmig oder stabförmig ausgebildet sein können. arranged, which may be ring-shaped or rod-shaped. Wenn auf diese Anordnung in axialer Richtung ein Druck ausgeübt wird, so geben die Quarzelemente When a pressure is exerted on this arrangement in the axial direction, thus giving the quartz elements 19 19 eine zu dem Druck proportionale La dung ab, die über eine geeignete Elektrodenanordnung an den Quarzen abgegriffen werden kann. proportional to the pressure from La dung, which can be tapped via an appropriate electrode arrangement to the quartz.
  • [0018]
    Bei der dargestellten Ausbildung des Sensors sind drei stabförmige Piezo-Quarze In the illustrated embodiment of the sensor, three rod-shaped piezoelectric crystals 19 19 mit, wie sich aus with as from 2 2 ergibt, einem kreisabschnittförmigen Querschnitt, wobei die kreisbogenförmige Außenseite an der Innenwandung des Gehäuses shows a part-circular cross-section, the arcuate outer surface on the inner wall of the housing 15 15 anliegt und der kreissehnenförmige Abschnitt an der Außenseite des Rohrs is applied and the chord-shaped portion on the outer side of the pipe 11 11 anliegt. is applied.
  • [0019]
    Die Quarze sind dabei so aus dem Kristallmaterial geschnitten, dass der piezoelektrische Effekt transversal auftritt, die elektrische Ladung also senkrecht zur Krafteinleitung, nämlich an die Innenseite The crystals are so cut from the crystal material, that the piezoelectric effect transversal occurs, the electric charge thus perpendicular to the introduction of force, namely, to the inside 20 20 und die Außenseite and the outside 21 21 der Quarze und damit an das Rohr of crystals and thus to the pipe 11 11 bzw. an das gegenüber dem Rohr or to the relative to the tube 11 11 elektrisch isolierten Gehäuse electrically insulated housing 15 15 abgegeben und über an diesen Elemente angeordneten Anschlussleitungen discharged and arranged on these elements connecting cables 23 23 , . 24 24 abgegriffen werden können. can be tapped.

Claims (10)

  1. Druck/Temperatur-Sensor, mit einem Gehäuse, einem Infrarotsensorteil und einem Quarzdrucksensorteil, dadurch gekennzeichnet , dass der Infrarotsensorteil ein für IR-Strahlung durchgängiges Fenster ( Pressure / temperature sensor, comprising a housing, an infrared sensor part and a quartz pressure sensor part, characterized in that the infrared sensor portion (a continuous IR-radiation window 10 10 ), ein in eine Bohrung des Gehäuses ( ) (In a bore of the housing 15 15 ) eingebrachtes, sich mit seinem einen Ende an das Fenster ( ) Which is introduced, to (with its one end to the window 10 10 ) anschließendes, die IR-Strahlung an seiner Innenfläche ( ) Subsequently, the IR radiation (at its inner surface 12 12 ) reflektierend leitendes Rohr ( ) Reflective conductive tube ( 11 11 ) und ein an dem anderen Ende des Rohres ( () And one other at the end of the tube 11 11 ) angeordnetes IR-Messelement ( ) Disposed IR-measuring element ( 13 13 ) aufweist, und das Druckmessteil durch um das Rohr ( ), And the pressure sensing part (by about the pipe 11 11 ) angeordnet in die Wandung der Bohrung in dem Gehäuse ( ) Arranged in the wall of the bore in the housing ( 15 15 ) eingespannte, den in die den auf das Gehäuse ( ) Clamped, the in the (to the housing 15 15 ) ausgeübten axialen Druck erfassende piezoelektrische Quarzelemente ( ) Applied axial pressure detecting piezoelectric quartz elements ( 19 19 ) gebildet wird. ) Is formed.
  2. Druck/Temperatur-Sensor nach Anspruch 1, dadurch gekennzeichnet, dass das Fenster ( Pressure / temperature sensor of claim 1, characterized in that the window ( 10 10 ) ein Saphierfenster ist. ) Is a Saphierfenster.
  3. Druck/Temperatur-Fenster nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Rohr ( Pressure / temperature window according to claim 1 or 2, characterized in that the tube ( 11 11 ) ein auf seiner Innenseite spiegelnd poliertes Metallrohr ist. ) Is a mirror-polished on its inner metal tube.
  4. Druck/Temperatur-Sensor nach Anspruch 3, dadurch gekennzeichnet, dass jedenfalls die Innenfläche ( Pressure / temperature sensor according to claim 3, characterized in that at least the inner surface ( 12 12 ) des Rohres ( () Of the tube 11 11 ) aus Gold besteht. ) Consists of gold.
  5. Druck/Temperatur-Sensor nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Rohr ( Pressure / temperature sensor according to one of the preceding claims, characterized in that the tube ( 11 11 ) an seinem dem ersten Fenster ( ) (At its the first window 10 10 ) abgewandten Ende mit einem zweiten Fenster ( ) Remote from the end (with a second window 16 16 ) versehen ist. is provided).
  6. Druck/Temperatur-Sensor nach Anspruch 5, dadurch gekennzeichnet, das dass zweite Fenster ( Pressure / temperature sensor of claim 5, characterized in that the (second window that 16 16 ) ein Saphirfenster ist. ) Is a sapphire window.
  7. Druck/Temperatur-Sensor nach Anspruch 5, dadurch gekennzeichnet, dass das Rohr ( Pressure / temperature sensor of claim 5, characterized in that the tube ( 12 12 ) radial federelastisch auf die Quarzelemente ( ) Radially elastically (on the quartz elements 19 19 ) wirkt. ) Acts.
  8. Druck/Temperatur-Sensor nach Anspruch 6, dadurch gekennzeichnet, dass die Quarzelemente ( Pressure / temperature sensor according to claim 6, characterized in that the quartz elements ( 19 19 ) kreisabschnittförmig ausgebildet und mit ihrem Kreisbogenabschnitt an der Wandung der Bohrung des Gehäuses ( ) Is formed a circular section, and (with its circular arc portion on the wall of the bore of the housing 15 15 ) und mit ihrem Sehnenabschnitt an der Außenseite des Rohres ( () And with its chord portion on the outside of the tube 11 11 ) anliegen. ) issue.
  9. Druck/Temperatur-Sensor nach einem der vorangehenden Ansprüche, dass das Rohr ( Pressure / temperature sensor according to one of the preceding claims, that the tube ( 11 11 ) und das zu diesem hoch isolierte Gehäuse ( ) And to this highly insulated housing ( 15 15 ) die Elektroden der Quarzelemente ( ) The electrodes of the quartz elements ( 19 19 ) bilden. ) form.
  10. Druck/Temperatur-Sensor nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die das Rohr ( Pressure / temperature sensor according to one of the preceding claims, characterized in that the (the pipe 11 11 ) aufnehmende Bohrung in dem Gehäuse ( ) Receiving bore in the housing ( 15 15 ) axial mittig in dem Gehäuse ( ) Axially centrally in the casing ( 15 15 ) angeordnet ist. ) Is arranged.
DE2003145299 2003-09-30 2003-09-30 High accuracy, combined pressure- and temperature sensor used in injection mold for plastic, comprises infra red transmission system and sensor, with piezoelectric axial pressure sensor Active DE10345299B3 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2228635A1 (en) * 2009-03-13 2010-09-15 Millipore Corporation Device for determining a physical value of a liquid flowing in a pipe
WO2011063537A1 (en) * 2009-11-25 2011-06-03 Kistler Holding Ag Pressure sensor for low-viscosity media
DE102009057765A1 (en) * 2009-12-10 2011-06-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal guiding device for manufacturing electrical contact with sensor in deformation tool, has pins extending from front side of body to rear side of body, where device is arranged between shaping area of tool and outer side of tool
US8640560B2 (en) 2008-03-26 2014-02-04 Emd Millipore Corporation System and method for interfacing sensors to a sterile flow stream
EP2784461A1 (en) * 2013-03-27 2014-10-01 VEGA Grieshaber KG Pressure measurement cell for detecting the pressure of a medium adjoining the measurement cell
WO2017003648A1 (en) * 2015-06-30 2017-01-05 Rosemount Inc. Thermowell with infrared sensor
US9885610B2 (en) 2014-12-22 2018-02-06 Rosemount Inc. Thermowell system with vibration detection

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JPH01267426A (en) * 1988-04-19 1989-10-25 Sumitomo Metal Ind Ltd Method and apparatus for temperature measurement of molten metal
DE4018958A1 (en) * 1989-06-15 1990-12-20 Nuovo Pignone Spa Ring spinner spindle butt - has elastic and dampened connection between upper holder and butt to cut noise on high speed working
DE19524146A1 (en) * 1995-07-03 1997-01-09 Bosch Gmbh Robert Pressure sheath, esp. for mechanical sensor such as knock detector for combustion engine - has top part with support for detectors, and lower part, arranged on oscillating component, which is placed on top part such that detectors and surrounding parts are clamp-fixed
DE19755500A1 (en) * 1997-12-13 1999-06-17 Univ Halle Wittenberg Method for recording axial temperature profile of material in a reciprocating screw pump, especially an injection molding machine
EP1057586A2 (en) * 1999-06-02 2000-12-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Tool for forming, punching or injection moulding

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JPH01267426A (en) * 1988-04-19 1989-10-25 Sumitomo Metal Ind Ltd Method and apparatus for temperature measurement of molten metal
DE4018958A1 (en) * 1989-06-15 1990-12-20 Nuovo Pignone Spa Ring spinner spindle butt - has elastic and dampened connection between upper holder and butt to cut noise on high speed working
DE19524146A1 (en) * 1995-07-03 1997-01-09 Bosch Gmbh Robert Pressure sheath, esp. for mechanical sensor such as knock detector for combustion engine - has top part with support for detectors, and lower part, arranged on oscillating component, which is placed on top part such that detectors and surrounding parts are clamp-fixed
DE19755500A1 (en) * 1997-12-13 1999-06-17 Univ Halle Wittenberg Method for recording axial temperature profile of material in a reciprocating screw pump, especially an injection molding machine
EP1057586A2 (en) * 1999-06-02 2000-12-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Tool for forming, punching or injection moulding

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8844388B2 (en) 2008-03-26 2014-09-30 Emd Millipore Corporation System and method for interfacing sensors to a sterile flow stream
US8640560B2 (en) 2008-03-26 2014-02-04 Emd Millipore Corporation System and method for interfacing sensors to a sterile flow stream
US8485044B2 (en) 2009-03-13 2013-07-16 Emd Millipore Corporation Device for determining a physical value of a liquid flowing in a pipe
WO2010103470A1 (en) * 2009-03-13 2010-09-16 Millipore Corporation Device for determinating a physical value of a liquid flowing in a pipe
FR2943134A1 (en) * 2009-03-13 2010-09-17 Millipore Corp Apparatus for determining a physical quantity of a liquid flowing in a pipe
CN101839776A (en) * 2009-03-13 2010-09-22 米利波尔公司 Device for determining a physical value of a liquid flowing in a pipe
US8297128B2 (en) 2009-03-13 2012-10-30 Emd Millipore Corporation Device for determining a physical value of a liquid flowing in a pipe
EP2228635A1 (en) * 2009-03-13 2010-09-15 Millipore Corporation Device for determining a physical value of a liquid flowing in a pipe
WO2011063537A1 (en) * 2009-11-25 2011-06-03 Kistler Holding Ag Pressure sensor for low-viscosity media
US9074952B2 (en) 2009-11-25 2015-07-07 Kistler Holding Ag Pressure sensor for low-viscosity media
DE102009057765A1 (en) * 2009-12-10 2011-06-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal guiding device for manufacturing electrical contact with sensor in deformation tool, has pins extending from front side of body to rear side of body, where device is arranged between shaping area of tool and outer side of tool
EP2784461A1 (en) * 2013-03-27 2014-10-01 VEGA Grieshaber KG Pressure measurement cell for detecting the pressure of a medium adjoining the measurement cell
WO2014154696A1 (en) * 2013-03-27 2014-10-02 Vega Grieshaber Kg Pressure-measuring cell for measuring the pressure of a medium adjoining the measuring cell
US9885610B2 (en) 2014-12-22 2018-02-06 Rosemount Inc. Thermowell system with vibration detection
WO2017003648A1 (en) * 2015-06-30 2017-01-05 Rosemount Inc. Thermowell with infrared sensor
US9891111B2 (en) 2015-06-30 2018-02-13 Rosemount Inc. Thermowell with infrared sensor

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