[go: up one dir, main page]

WO1994027113A1 - Capteur de deplacement haute temperature - Google Patents

Capteur de deplacement haute temperature Download PDF

Info

Publication number
WO1994027113A1
WO1994027113A1 PCT/EP1994/001467 EP9401467W WO9427113A1 WO 1994027113 A1 WO1994027113 A1 WO 1994027113A1 EP 9401467 W EP9401467 W EP 9401467W WO 9427113 A1 WO9427113 A1 WO 9427113A1
Authority
WO
WIPO (PCT)
Prior art keywords
probe
rod
leaf springs
cooling
interface
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.)
Ceased
Application number
PCT/EP1994/001467
Other languages
German (de)
English (en)
Inventor
Rainer Gaus
Stefan Zauner
Günther GESELL
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.)
IABG Industrieanlagen Betriebs GmbH
Original Assignee
IABG Industrieanlagen Betriebs GmbH
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 IABG Industrieanlagen Betriebs GmbH filed Critical IABG Industrieanlagen Betriebs GmbH
Priority to EP94917589A priority Critical patent/EP0697096A1/fr
Priority to JP6524926A priority patent/JPH09500717A/ja
Publication of WO1994027113A1 publication Critical patent/WO1994027113A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties

Definitions

  • the invention relates to a device for measuring the deformation of measuring objects, preferably under mechanical and / or thermal loads, in the longitudinal direction of the measuring probe.
  • the range of use of the displacement transducer according to the invention ranges from room temperature to approximately 2300 ° C., the preferred working range is between approximately 700 ° C. and 1800 ° C.
  • the permissible ambient pressure ranges from vacuum to approx. 100 bar; it can be used in all gaseous media; in the case of aggressive media, additional material and construction-related requirements must be met.
  • the state of the art is characterized by displacement sensors which are subject to a drastic restriction: the temperature distribution from the test object to the measurement sensor must be homogeneous and constant.
  • a weakness in the current state of the art is that the probe guide for applications in high temperature ranges, and these have so far only been satisfactorily up to about 800 ° C.
  • no applications of probe materials are known in which the experimental thermal expansion of the probe can be neglected or exactly determined.
  • the aim of the invention is to provide a high-temperature displacement sensor that can also operate under transient temperature conditions, e.g. also provides reliable measurement results in the heating phase, and which also works in significantly higher temperature ranges, namely up to approx. 2300 ° C, and which can be used from vacuum to approx. 100 bar regardless of the atmospheric pressure.
  • a quartz glass rod is used as probe 1; In the area of high temperatures, special quartz glasses are recommended, e.g. from the company Raesch, Geesthacht. Cooling of the quartz glass rod is necessary above a continuous temperature of approximately 1400 ° C. This can be done through channels inside the rod through which gaseous or liquid coolants are passed.
  • tip 2 of the quartz glass rod a material with even better high-temperature properties is required, e.g. Sapphire because it has a high transmission coefficient and low thermal conductivity.
  • the sapphire is glued to the lower end of the quartz rod with a high-temperature adhesive, preferably on a ceramic basis.
  • the measurement signals are generated by an inductive displacement transducer of a known type.
  • the requirement must be met in terms of construction that the plunger anchor 4 is guided in the coil housing 5 without contact in order to prevent heat conduction effects from the plunger anchor 4 onto the coil housing 5 and to minimize heat transfer effects.
  • This contact-free guidance in which only very slight lateral deviations are permitted, is implemented as follows:
  • the plunger anchor 4 sits firmly on a rod 6 made of non-magnetic material, which forms the straight extension of the measuring probe 1 (FIG. 1).
  • This rod 6 is mounted and guided in a resilient bracket above and below the cooling housing 11.
  • the two lower springs 9b have a hole 10 in the center through which the rod 6 is guided, they are firmly connected to the button guide frame 7 (FIGS. 2 and 3). This type of suspension requires the probe tip to be pressed against the sample.
  • leaf springs 9 are also possible in such a way that, for example, the two inner springs are firmly connected to the rod 6, and the respective outer leaf springs have the bore for the rod 6 and are fixed to the key guide frame 7, or the other way around.
  • This arrangement is advantageous, for example, when the tip of the measuring probe 1 is connected to the sample, for example by gluing with high-temperature adhesives on a ceramic basis.
  • FIG. 5 shows another variant of the resilient rod guide, which has the advantage of a particularly flat, space-saving design:
  • a board 19 preferably made of spring steel, slots are punched in such a way that two spring tongues 20 and 21 acting in opposite directions are created as the functional principle.
  • the rod 6 is fixed in point A, the board on the push button guide frame in points B. If the ratio of l ⁇ : I 2 and Si: S 2 (1: 2) is correct, the rod guide is very rigid against lateral bending movements.
  • the coil housing 5 is cooled, preferably by water cooling. Further is
  • a radiation shield 22 is provided between the surface of the measurement object 28 and the interface 14.
  • cooling housing 11 is provided with channels for the coolant or whether the cooling by heat conduction to the water-cooled fastening linkage 13 with its cooling channels 3 is sufficient or whether air cooling with cooling fins is sufficient depends on the intended use.
  • the connection of the probe 1 to the rod 6 takes place via an interface 14 which is designed in such a way that the heat transfer from 1 to 6 is as low as possible.
  • the interface 14 is designed in such a way that the probe 1 is housed in a heat-insulating sleeve 15, e.g. made of Teflon.
  • the measuring probe 1 has gold sputtering at its upper end in order to reflect heat radiation inside the rod.
  • the probe l must be clamped in the interface because of the different thermal expansion of the materials used. Therefore, a ball 16 is pressed with a screw 17 resiliently via a spring 23 into a notch 18 which is located in the measuring rod 1 (FIG. 4).
  • a fine adjustment 27 e.g. screw
  • FIG. 1 and FIG. 3 In order to simplify the handling of the displacement transducer and to keep the initial conditions reproducible, it is advisable to provide a button lock 25 and a device for rough start-up 26 (e.g. sledge).
  • a fine adjustment 27 e.g. screw
  • the induction voltage generated by the plunger 4 in the coil housing 5 is amplified in a known manner and e.g. logged via data logger.
  • the temperature distribution from the probe tip 2 to the plunger armature coil 4 may be inhomogeneous and that the type of construction, the material selection and the cooling of the plunger armature 4 ent ⁇ holding housing the working range from room temperature to
  • REPLACEMENT BUTT (RULE 26) approx. 1800 ° C is sufficient and measurements up to peak temperatures of approx. 2300 ° C are still possible.
  • Many components are commercially available or simple to manufacture, so that the displacement transducer according to the invention is very inexpensive to manufacture. It is also light, portable, robust and easy to use, and it can be used under any installation angle.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

L'invention concerne un dispositif de mesure permettant de mesurer de manière unidimensionnelle la déformation d'origine thermique et/ou mécanique d'objets à mesurer portés à des températures très élevées. La plage des températures de travail s'étend de la température ambiante à environ 2300 °C, la plage habituelle se situant entre la température ambiante et 1800 °C. Le capteur de déplacement haute température comprend des composants de type commercial et des composants faciles à produire. Il est bon marché, facile à porter, fiable, robuste et peut être utilisé sous n'importe quel angle.
PCT/EP1994/001467 1993-05-08 1994-05-06 Capteur de deplacement haute temperature Ceased WO1994027113A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94917589A EP0697096A1 (fr) 1993-05-08 1994-05-06 Capteur de deplacement haute temperature
JP6524926A JPH09500717A (ja) 1993-05-08 1994-05-06 高温膨張計

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4315388.7 1993-05-08
DE19934315388 DE4315388C1 (de) 1993-05-08 1993-05-08 Hochtemperatur-Wegaufnehmer

Publications (1)

Publication Number Publication Date
WO1994027113A1 true WO1994027113A1 (fr) 1994-11-24

Family

ID=6487594

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/001467 Ceased WO1994027113A1 (fr) 1993-05-08 1994-05-06 Capteur de deplacement haute temperature

Country Status (4)

Country Link
EP (1) EP0697096A1 (fr)
JP (1) JPH09500717A (fr)
DE (1) DE4315388C1 (fr)
WO (1) WO1994027113A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104827008A (zh) * 2015-05-19 2015-08-12 大连华锐重工集团股份有限公司 一种用于在线结晶器铜板实时监测的温度位移耦合装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680357A (en) * 1970-09-21 1972-08-01 Gerhard R Clusener Dilatometer
US3748892A (en) * 1972-04-18 1973-07-31 Us Air Force High precision dilatometer
DE2331113B1 (de) * 1973-06-19 1974-02-07 W.C. Heraeus Gmbh, 6450 Hanau Dilatometer
SU549720A2 (ru) * 1973-01-15 1977-03-05 Предприятие П/Я Г-4126 Дифференциальный дилатометр
EP0273666A2 (fr) * 1986-12-22 1988-07-06 Atomic Energy of Canada Limited L'Energie Atomique du Canada Limitée Extensomètre
NL8700084A (nl) * 1987-01-15 1988-08-01 Euratom Inrichting voor het meten van de vervorming van een meetobject.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300305C2 (de) * 1967-09-15 1974-05-02 Spinner, Dr.-Ing. Georg, 8000 München Elektronisches praezisionsgeraet zur messung und ueberwachung mechanischer groessen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680357A (en) * 1970-09-21 1972-08-01 Gerhard R Clusener Dilatometer
US3748892A (en) * 1972-04-18 1973-07-31 Us Air Force High precision dilatometer
SU549720A2 (ru) * 1973-01-15 1977-03-05 Предприятие П/Я Г-4126 Дифференциальный дилатометр
DE2331113B1 (de) * 1973-06-19 1974-02-07 W.C. Heraeus Gmbh, 6450 Hanau Dilatometer
EP0273666A2 (fr) * 1986-12-22 1988-07-06 Atomic Energy of Canada Limited L'Energie Atomique du Canada Limitée Extensomètre
NL8700084A (nl) * 1987-01-15 1988-08-01 Euratom Inrichting voor het meten van de vervorming van een meetobject.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 7805, Derwent World Patents Index; AN 78-B0233A *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104827008A (zh) * 2015-05-19 2015-08-12 大连华锐重工集团股份有限公司 一种用于在线结晶器铜板实时监测的温度位移耦合装置

Also Published As

Publication number Publication date
EP0697096A1 (fr) 1996-02-21
DE4315388C1 (de) 1994-06-16
JPH09500717A (ja) 1997-01-21

Similar Documents

Publication Publication Date Title
DE69728700T2 (de) Anordnung zur optischen Messung einer physikalischen Grösse in einer Stromanlage und Herstellungsverfahren dafür
EP0445362B1 (fr) Dispositif de mesure d'une induction magnétique
EP0801150A2 (fr) Composant électronique
DE102016105949A1 (de) Nicht-intrusive Temperaturmessvorrichtung
DE3928038C2 (de) Differenzdruckmesser
DE3302080A1 (de) Thermischer massendurchflussmesser, insbesondere fuer gase
DE102012109841B4 (de) Miniatur-Dilatometer für die Messungen der thermischen Ausdehnung und der Magnetostriktion zur Verwendung innerhalb eines Multifunktionseinsatzes eines PPMS-Gerätes
EP0259471A1 (fr) Dispositif de controle et/ou de saisie des dimensions, des changements dans les dimensions, de la position et des changements dans la position de pieces a usiner, organes de reglage et similaires.
EP0697096A1 (fr) Capteur de deplacement haute temperature
US4718279A (en) Dual bourdon tube type sensing pressure transducer
WO2008092938A2 (fr) Débitmètre magnéto-inductif
EP0697095B1 (fr) Capteur extensometrique pour temperatures elevees
EP0794416A1 (fr) Thermomètre combiné mécanique-électrique
DE4439222A1 (de) Massenflußsensor mit Druckkompensation
EP4127629B1 (fr) Thermomètre pour des applications cryogéniques
CN109489820A (zh) 一种成像式红外傅里叶变换光谱探测仪低温可调视场光阑
DE20318242U1 (de) Druck-, Kraft- und/oder Temperatursensor
DE19516260C1 (de) Anordnung zur Temperaturerfassung an einem Meßwandler
DE4122799C2 (fr)
DE952033C (de) Vakuummeter
DD219068A3 (de) Einrichtung zur beruehrungslosen temperaturmessung
DE102007011022B3 (de) Eintauchthermoelement zum Messen hoher Temperaturen
DE102007026667B4 (de) Flexibler Temperaturfühler
DD281023A1 (de) Vorrichtung zur bestimmung der temperaturabhaengigen laengenaenderung
Walters et al. An extensometer for creep-fatigue testing at elevated temperatures and low strain ranges (±0.2 per cent< δ∊< 1.0 per cent)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1994917589

Country of ref document: EP

ENP Entry into the national phase

Ref country code: US

Ref document number: 1996 545810

Date of ref document: 19960117

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1994917589

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1994917589

Country of ref document: EP