DE2214722A1 - METHOD OF MEASURING THE TEMPERATURE FROM A RADIATION - Google Patents
METHOD OF MEASURING THE TEMPERATURE FROM A RADIATIONInfo
- Publication number
- DE2214722A1 DE2214722A1 DE19722214722 DE2214722A DE2214722A1 DE 2214722 A1 DE2214722 A1 DE 2214722A1 DE 19722214722 DE19722214722 DE 19722214722 DE 2214722 A DE2214722 A DE 2214722A DE 2214722 A1 DE2214722 A1 DE 2214722A1
- Authority
- DE
- Germany
- Prior art keywords
- radiation
- spectral
- bricks
- temperature
- measuring
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 6
- 230000003595 spectral effect Effects 0.000 claims description 20
- 239000011449 brick Substances 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
- G01J5/602—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature using selective, monochromatic or bandpass filtering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Description
Verfahren zum Messen der Temperatur aus einer Strahlung Die Erfindung betrifft ein Verfahren zum Messen der Temperatur aus einer Strahlung von feuerfesten Steinen sowie Ziegeln und aehnlichem Material, insbesondere mit einem Infrarot-Bandstrahlungspyromet er.Method of measuring temperature from radiation The invention relates to a method for measuring the temperature from radiation from refractories Stones as well as bricks and similar material, in particular with an infrared band radiation pyrometer he.
»ie Temperaturmessung bei der Herstellung von feuerfesten Steinen, wie z. B. Silika-, Schamotte-, Silimanit-, Korung-und Magnesitsteinen, sowie von Ziegeln und achnlichem X terial in Steinbrennereien und keramischen Betrieben ist bisher mit starken Fehlerabweichungen behaftet. Das gleiche gilt auch fuer die Temparaturueberwachung der Ofenwaende von Waerm- und Schmelzoefen in Huettenwerken und Industriebetrieben.»He temperature measurement in the manufacture of refractory bricks, such as B. silica, chamotte, Silimanit, Korung and magnesite stones, as well as from Bricks and the like in stone and ceramic factories so far afflicted with strong error deviations. The same applies to temperature monitoring the furnace walls of hot and smelting furnaces in smelting works and industrial plants.
Bekannt ist, fuer derartige Temperaturmessungen Gesamtstrahlungspyrometer einzusetzen. Durch ihre grosse optische Bandbreite erfassen sie aber auch die Stoerstrahlung von Flammen.It is known that total radiation pyrometers are used for such temperature measurements to use. However, thanks to their large optical bandwidth, they also detect interference radiation of flames.
Die spektralen Bereiche mit star'ren Absorptionsgraden des Kohlendioxids und des Wasserdampfes beeinflussen ebenfalls die Temperaturmessung. Ferner betraegt der Gesamtemissionsgrad nur ca. 30 ... 60% der spektralen Maximalwerte.The spectral ranges with rigid degrees of absorption of carbon dioxide and the water vapor also influence the temperature measurement. Also amounts the total emissivity only approx. 30 ... 60% of the spectral maximum values.
Weiterhin ist bekannt, hierfuer Bandstrahlungs- und Spektralpyrometer mit sowohl im sichtbaren als auch im nahen infraroten Spektrfalbereich liegenden optischen Bandbreiten zu verwenden. Bei diesen Pyrometern ist, infolge des in diesen Spektralbereichen geringen spektralen Emissionsgrades und der moeglichen Beeinflussung der zur Temperaturmessung vervendeten Strahlung durch leuchtende Flammen, die Temperaturmessung an den genannten Stoffen mit starken Fehlern behaftet. Auch der Einsatz von Farbpyrometern bringt infolge des selektiven spektralen Emissionsgrades von feuerfesten Steinen u. ae. Material und des Einflusses von leuchtenden Flammen keinen Erfolg.It is also known to use ribbon radiation and spectral pyrometers for this purpose with lying in the visible as well as in the near infrared spectral range optical bandwidths to use. With these pyrometers, as a result the low spectral emissivity in these spectral ranges and the possible Influence of the radiation used for temperature measurement by luminous flames, the temperature measurement on the substances mentioned is afflicted with severe errors. Even the use of color pyrometers brings due to the selective spectral emissivity of refractory bricks, etc. Material and the influence of glowing flames no success.
Zweck der Erfindung ist es, eine moeglichst fehlerfreie Temperaturmessung aus der Strahlung von feuerfesten Steinen sowie Ziegeln und aehnlichem Material zu erreichen.The purpose of the invention is to measure the temperature as accurately as possible from radiation from refractory stones, bricks and similar materials to reach.
Aufgabe der Erfindung ist es, ein Verfahren zum Messen der Temperatur aus einer Strahlung dieser genannten Materialien zu entwickeln, das unter Verwendung eines Infrarot-Bandstrahlungspyrometers, mit einer speziellen Auslegung der spektralen Lage und Breite seines optischen Bandfilters im Messtrahlengang zwischen Objektiv und Strahlungsempfaenger, eine Temperaturmessung mit geringstmoeglicher Fehlerquote ermoeglicht.The object of the invention is to provide a method for measuring the temperature to develop from a radiation of these mentioned materials that using an infrared band radiation pyrometer, with a special design of the spectral Position and width of its optical band filter in the measuring beam path between the lens and radiation receiver, a temperature measurement with the lowest possible error rate made possible.
Erfindungsgemaess wird die Aufgabe derart geloest, dass eine Selektion der spektralen Strahlung erfolgt. Dadurch werden nur solche Gebiete des infraroten Spektralbereiches erfasst, in denen ein hoher Emissionsgrad von feuerfesten Steinen sowie Ziegeln und aehnlichem ASterial zu verzeichnen ist.According to the invention, the object is achieved in such a way that a selection the spectral radiation takes place. This only makes such areas of the infrared Spectral range recorded in which a high emissivity of refractory bricks as well as bricks and similar asterial is to be recorded.
Weiterhin darf dort auch nur ein geringer Absorptionsgrad des Kohlendioxides und Wasserdampfes der Huettenluft wirksam und der Emissionsgrad von Flammen klein sein.Furthermore, only a low degree of absorption of the carbon dioxide is allowed there and water vapor from the hut air are effective and the emissivity of flames is small be.
Zur Erfassung dieser Gebiete des infraroten Spektrale reiches ist ein in Messtrahlengang eines Infrarot-Bandstrahlungpyrometers zwischen Objektiv und Messtrahlung empfaenger angeordnetes optisches Bandfilter in seiner spektralen Lage und Breite so ausgelegt, dass es vorzugsweise einen Spektralbereich von annaehernd 7,2 ... 8,2'um erfasst.To cover these areas the infrared spectral is rich one in the measuring beam path of an infrared ribbon radiation pyrometer between the objective and measuring radiation receiver arranged optical bandpass filter in its spectral Position and width designed so that it preferably approximates a spectral range 7.2 ... 8.2'um recorded.
Es wurde gefunden, dass vorzugsweise im Spektralbereich von annaehernd 7,2 ... 8,2 mm feuerfeste Steine sowie Ziegel und aehnliches Material spektrale Emissionsgrade von 0,8 ... 0,95 aufweisen. Der Absorptionsgrad des Wasserdampfes und des Kohlendioxides, welche den Hauptanteil des Stoereinflusses von nichtleuchtenden Flammen und der Huettenluft ausmachen, ist in diesem Gebiet aeusserst gering.It has been found that preferably in the spectral range of approximately 7.2 ... 8.2 mm refractory bricks as well as bricks and similar material spectral Have emissivities of 0.8 ... 0.95. The degree of absorption of the water vapor and carbon dioxide, which is the main part of the harmful effects of non-luminous The flames and the hut air are extremely low in this area.
Ein weiterer Vorteil besteht darin, dass der Emissionsgrad leuchtender Flammen hier nur Werte besitzt, die unter 1/10 von solchen im sichtbaren Spektralgebiet liegen und somit der flammeneinfluss auf die Temperaturmessung stark herabgesetzt wird.Another advantage is that the emissivity is brighter Flame only has values here that are below 1/10 of those in the visible spectral region and thus the influence of the flame on the temperature measurement is greatly reduced will.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15804171A DD97065A1 (en) | 1971-09-30 | 1971-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2214722A1 true DE2214722A1 (en) | 1973-04-19 |
Family
ID=5484394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722214722 Pending DE2214722A1 (en) | 1971-09-30 | 1972-03-25 | METHOD OF MEASURING THE TEMPERATURE FROM A RADIATION |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS176419B1 (en) |
| DD (1) | DD97065A1 (en) |
| DE (1) | DE2214722A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355281A1 (en) * | 1976-06-18 | 1978-01-13 | Bodenseewerk Perkin Elmer Co | METHOD AND DEVICE FOR PYROMETRIC MEASUREMENT OF TEMPERATURES |
| EP0236128A2 (en) * | 1986-03-03 | 1987-09-09 | Agency Of Industrial Science And Technology | Infrared ray sensing device |
-
1971
- 1971-09-30 DD DD15804171A patent/DD97065A1/xx unknown
-
1972
- 1972-03-25 DE DE19722214722 patent/DE2214722A1/en active Pending
- 1972-09-13 CS CS627672A patent/CS176419B1/cs unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355281A1 (en) * | 1976-06-18 | 1978-01-13 | Bodenseewerk Perkin Elmer Co | METHOD AND DEVICE FOR PYROMETRIC MEASUREMENT OF TEMPERATURES |
| EP0236128A2 (en) * | 1986-03-03 | 1987-09-09 | Agency Of Industrial Science And Technology | Infrared ray sensing device |
| EP0236128A3 (en) * | 1986-03-03 | 1988-09-21 | Agency Of Industrial Science And Technology | Infrared ray sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CS176419B1 (en) | 1977-06-30 |
| DD97065A1 (en) | 1973-04-12 |
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