DE1806637A1 - Radiation measuring device for highly reflective - surfaces - Google Patents

Radiation measuring device for highly reflective - surfaces

Info

Publication number
DE1806637A1
DE1806637A1 DE19681806637 DE1806637A DE1806637A1 DE 1806637 A1 DE1806637 A1 DE 1806637A1 DE 19681806637 DE19681806637 DE 19681806637 DE 1806637 A DE1806637 A DE 1806637A DE 1806637 A1 DE1806637 A1 DE 1806637A1
Authority
DE
Germany
Prior art keywords
lens
teflon
cone
measuring device
highly reflective
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
DE19681806637
Other languages
German (de)
Other versions
DE1806637B2 (en
DE1806637C3 (en
Inventor
Jens Timm
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.)
FORSCHUNGSLABORATORIUM DR ING
Original Assignee
FORSCHUNGSLABORATORIUM DR ING
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 FORSCHUNGSLABORATORIUM DR ING filed Critical FORSCHUNGSLABORATORIUM DR ING
Priority to DE1806637A priority Critical patent/DE1806637C3/en
Publication of DE1806637A1 publication Critical patent/DE1806637A1/en
Publication of DE1806637B2 publication Critical patent/DE1806637B2/en
Application granted granted Critical
Publication of DE1806637C3 publication Critical patent/DE1806637C3/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/06Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/08Optical arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/08Optical arrangements
    • G01J5/0887Integrating cavities mimicking black bodies, wherein the heat propagation between the black body and the measuring element does not occur within a solid; Use of bodies placed inside the fluid stream for measurement of the temperature of gases; Use of the reemission from a surface, e.g. reflective surface; Emissivity enhancement by multiple reflections
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/08Optical arrangements
    • G01J5/0893Arrangements to attach devices to a pyrometer, i.e. attaching an optical interface; Spatial relative arrangement of optical elements, e.g. folded beam path
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • G01K13/04Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
    • G01K13/08Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

A temperature radiation receiver with an indicator carries an objective and a sighting cone in front of it. A spring-loaded support keeps a Teflon strip in tension so that it covers the base of the cone completely when pressed against the surface of a calender roller.

Description

Rodiometer für glotte Oberflächen hoher Raflexion Die Erfindung betrifft ein Rodiometer zur Meßung von flöchentemparcturen on glotten Oberfl@chen hoher Reflexion mit einem Objektiv, einem Tamperoturstr@hlungsempfönger und einem Anzeigegeröt.Rodiometer for flat surfaces of high reflection The invention relates to a rodiometer for measuring surface temperatures on glottal surfaces of high reflection with a lens, a tamperotur receiver and a display unit.

Die Meßung von Oberflöchentemperoturen durch Bestimmung der mittleren Temperotur größerer Oberflöchenteile wird zweckmößig mit den bekonnten Rodiometern vorgenommen, bei denen die Basis des auf dem Objekt endenden Sichtkegels des Meßobjestives, dos auch aus einer Lochblende bestehen konn, dio zu messende Flache bestimmt. Dadurch kann auf einfache Weise die mittlere Temperatur einer Meßflöche son der Gr@ßenordnung einiger cm2 gemessen und in den Föllen, in denen eine hohe örtliche Auflösung der Tempoerotur nicht benötigt wird, die Meßgenouigkeit erhöht werden.The measurement of surface temperatures by determining the mean The temperature of larger surface parts is expedient with the well-known rodiometers made, in which the base of the cone of vision of the measuring objective ending on the object, can also consist of a perforated diaphragm, which determines the area to be measured. Through this can easily determine the mean temperature of a measuring surface of the order of magnitude of a few cm2 and in the fills where there is a high spatial resolution of the Tempoerotur is not required, the measuring accuracy can be increased.

Diese Meßmethode ist nur bedingt verwendbar, wenn beispiebweise die Oberflöche von blonken, glotten Metollen gemessen werden soll, do in diesem Fall der Refieionskoeffizient groß und danit der Eissionskoeffizient klein wird, da gier in hohem Moße die von der Meßflöche roflektierte Um@@bung gemessen wird, was zu verfölschten Meßergebnissen f@hrt. Andererseits ist es oft, beispielsweise bei Kolonderwolzen, nicht möglich, durch Aufbringen von Schichten hoher Emissionskoeffizientsn die Emissionseigenschoften zu verbessern.This measuring method can only be used to a limited extent if, for example, the Surface of blonken, glotten metollen should be measured, do in this case the reflection coefficient becomes large and then the emission coefficient becomes small because greed to a large extent the um @@ exercise reflected by the measuring surface is measured, which leads to leads to falsified measurement results. On the other hand, it is often, for example with Kolonderwolzen, not possible, by applying layers of high emission coefficients, the emission properties to improve.

Es stellt sich somit die Aufgabe, eine Anordnung zu entwickeln, mit der auch bei glatten Oberflöchen hoher Reflexion eine genaue Strohlungsmessung möglich ist.It is therefore the task of developing an arrangement with which enables precise radiation measurement even with smooth surfaces with high reflections is.

Dies. Aufgnbo bst die Erfindung dadurch, da ein dunner, mit dem Objektiv federnd fest-verbundane reflonstreifen im Sichtkegal des Objektivs derort dufgespunnt ist, doß die Bosis des Sichtkegels vellstöndig ouf dem feflonstreifen liegt.This. The invention is enhanced by the fact that it is thin with the lens resilient, firmly connected reflon strips in the viewing area of the lens where there is a scent is, that the bosis of the cone of vision lies completely on the feflon strip.

Der Vorteil dieser Anordnung liegt dorin, doß der Teflonstreifen, wenn er ouf eins glotte Obsrflöche hoher Reflexion aufgelegt wird, deren Temperctur annimmt und seinerssits eine Strchlung dussendet, so daß jetzt die mittlexe Temper@tur einfach me@bor ist. Dabei ist es gleichgültig, ob sich die Orerflöche bewegt oder nicht, da Teflon einen sehr geringen Reibungskosffizientem hat. Auf diese Weise wird der Enissionskoeffizient der glctten Oberflöche hoher Reflemion definierbor vergrößert und die Strchlungs messung ouch bei diesen Oberrflöchen nöglich.The advantage of this arrangement is that the Teflon strip, when it is placed on a glotty obscurus of high reflection, its temperature assumes and, on the other hand, sends a flicker, so that now the mean temperature simply me @ bor is. It does not matter whether the Orerflöche moves or not, as Teflon has a very low coefficient of friction. In this way the emission coefficient of the smooth surface of high reflection is defined enlarged and the flow measurement is also possible with these surfaces.

Es ist zwar bekannt, Kontokt@ermometes wit Teflon zu ummonteln und mit solchen Thermometern bei bionken beweglichen Oberflöchen die Temperotur zu messen. Hier hat dos Teflon die Aufgabe der Wörmecbleitung aus einem kleinen Bereich, wdhrend in einer Anordnung nach der Erfindung eine Meßwertwondlung eingescheltet wird. wodurch ein großer Flöchbereich der Messung zugönglich wird.It is known to ummonteln and account @ ermometes wit Teflon to measure the temperature of bionken movable surfaces with such thermometers. Here dos Teflon has the task of heat transfer from a small area, while In an arrangement according to the invention, a measured value winding is switched on. through which a large surface area of the measurement becomes accessible.

In der Zeicbnung ist ein Ausfubrungsbeispinl der Erfindung schematisch dargestellt.An embodiment example of the invention is shown schematically in the drawing shown.

Ein einen Tenperoturstrohlungsempfönger entheltendes Rodiometer # mit einem Anzeigeinstrument 2 und einem, die Temperoturstrchlung ouf den Temperatuzstrdhlungsempfönger richtendes Objektivß, dos ouch ous oier Lochblende bestehen konn, mit einem Sichtkegel, 4 ist miteinem federnd-fost mit dem Objektiv 3 verbundenen Stützgestell 6 @rsehen, in dem ein Teflonstreifen 5 oulgespannt ist. Druckfedern 55 sorgen für die Spreizung des Stutzgestelis 6, so daß der Teflon^ streifen 5 glott oufgespannt ist, rier Teflonstrcifen 5 ist so bemessen.@@ß der Sichtkegel 4 des Rodiometers voll ouf dem Streifen liegt. Wird diese Anordnung auf eine Wolze 7 @ufgedruckt, dann wird durch die Wirkung der Federn das Teflon glott auf diese Walze gezogen. Da der Reibungskoeffizient des Teflonstreifens gering ist, entsteht auch bei beweglichen Walzen 7 nur venig Reibungswärme, die jedoch durch eine Eichung des Rodiometers eleminiert werden konn. Die von der Innenseite des Teflonstreifens @usgehende Strahlung, die eine Funktion der temperatur ist, wird vom Objektiv des R@@iometers oufgenommen, ouf den To@per@turstrchlungsempfönger gerichtet und zur Anzeige g@brocht.A rodiometer containing a tenperoture radiator # with a display instrument 2 and one, the Temperoturstrchlung on the Temperatuzstrdhlungsempfönger judging Lens, there can also be oier pinhole diaphragm, with a cone of vision that is 4 with a spring-loaded support frame 6 connected to the lens 3, in which a Teflon strip 5 is oulgespannt. Compression springs 55 ensure the expansion of the support frame 6, so that the Teflon ^ strip 5 is stretched open, rier Teflon strip 5 is dimensioned so. @@ ß the cone of vision 4 of the rodiometer lies fully on the strip. If this arrangement is printed on a Wolze 7, the effect of the Springs the Teflon glott pulled onto this roller. Since the coefficient of friction of the Teflon strip is small, there is little frictional heat even with movable rollers 7, which, however, can be eliminated by calibrating the rodiometer. The one from the Inside of the Teflon strip @ outgoing radiation, which is a function of the temperature is recorded by the lens of the R @@ iometer, o on the to @ per @ turntreceiver directed and to display g @ brocht.

Claims (1)

P o t e n t o n s p r u c hP o t e n t o n s p r u c h Rodiometer zur Meßung von Flächentemperaturen an glotten Oberfluchen hoher Reflexion mit einem Objektiv, einem Temperaturstrahlungsernpfönger und einen Anzeigegeröt, dodurch gekennzeichnet, d@ß @in dunner, mit dem Objektiv federnd-fest verbundener Teflonstreifen im Sichtkegel des Objektivs derart aufgespannt iste daß die Basis des Sichtkegell; vollstördig auf dem Teflonstreifen liegt.Rodiometer for measuring surface temperatures on glottic surfaces high reflection with a lens, a temperature radiation receiver and a Indicator red, marked by this, d @ ß @in thinner, with the lens resilient and firm connected Teflon strips in the cone of vision of the lens is stretched such that the base of the viewing cone; lies completely on the Teflon strip.
DE1806637A 1968-11-02 1968-11-02 Radiation measuring instrument for smooth, highly reflective surfaces Expired DE1806637C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1806637A DE1806637C3 (en) 1968-11-02 1968-11-02 Radiation measuring instrument for smooth, highly reflective surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1806637A DE1806637C3 (en) 1968-11-02 1968-11-02 Radiation measuring instrument for smooth, highly reflective surfaces

Publications (3)

Publication Number Publication Date
DE1806637A1 true DE1806637A1 (en) 1970-05-27
DE1806637B2 DE1806637B2 (en) 1975-01-23
DE1806637C3 DE1806637C3 (en) 1975-09-18

Family

ID=5712188

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1806637A Expired DE1806637C3 (en) 1968-11-02 1968-11-02 Radiation measuring instrument for smooth, highly reflective surfaces

Country Status (1)

Country Link
DE (1) DE1806637C3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734018A1 (en) * 1987-10-08 1989-04-27 Kuesters Eduard Maschf DEVICE FOR MEASURING THE TEMPERATURE OF THE SURFACE OF A ROTATING ROLL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734018A1 (en) * 1987-10-08 1989-04-27 Kuesters Eduard Maschf DEVICE FOR MEASURING THE TEMPERATURE OF THE SURFACE OF A ROTATING ROLL
US4877331A (en) * 1987-10-08 1989-10-31 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Apparatus for measuring the temperature of the surface of a rotating roll

Also Published As

Publication number Publication date
DE1806637B2 (en) 1975-01-23
DE1806637C3 (en) 1975-09-18

Similar Documents

Publication Publication Date Title
Black et al. Spherical aberration and the information content of optical images
US3357230A (en) Method and apparatus for calibrating camera photometer
DE1806637A1 (en) Radiation measuring device for highly reflective - surfaces
US2787834A (en) Grating strain gauges
Holst Infrared imaging system testing
US2960909A (en) Method for determination of color of gems
DE3108234A1 (en) Method for assessing the quality of motor vehicle windows
Weale Apparent size and contrast
DE102008048574A1 (en) Light ray's impact point identifying device, has light source for emitting light ray, and reflecting element formed of two single reflectors, where one of single reflectors is changeable by adjustment process
DE387473C (en) Method and device for measuring high temperatures by dividing the light emitted by the heat source into two bundles of rays
US3250177A (en) Image evaluation device
Braun et al. A Non-Intrusive Computer Automated Method for Temperature and Velocity Evaluation Based on Thermocromic Liquid Crystals
Hasson et al. Application of dispersion techniques to molecular band intensity measurements. I. Principles of'fringe shift'and'fringe slope'band analysis procedures
DE4235772A1 (en) IR remote thermometer
DE2519616A1 (en) Projector slide temp. distribution measurement - has special unit with metal foil in contact with liquid crystal film in projection plane
Sharp et al. The usefulness of indices measuring gamma camera non-uniformity
DE422960C (en) Optical absorption pyrometer
US1960675A (en) Stretch comparator
Grossmann-Doerth On astronomical seeing: The single Schlieren model
DE4013975C2 (en)
US4050820A (en) Light-reflecting analytical device
DE2448288B1 (en) Qualititative classification of compsn. of structured glossy surfaces - pattern projected onto surface for coincidence with reference
Tse et al. A second-generation portable instrument for DOI (Distinctness of Image) measurement
Hall Spectrophotometry of 67 Bright Stars with a Photoelectric Cell.
Laitinen Evaluation procedure for imaging in web inspection

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)