DE156008C - - Google Patents
Info
- Publication number
- DE156008C DE156008C DENDAT156008D DE156008DA DE156008C DE 156008 C DE156008 C DE 156008C DE NDAT156008 D DENDAT156008 D DE NDAT156008D DE 156008D A DE156008D A DE 156008DA DE 156008 C DE156008 C DE 156008C
- Authority
- DE
- Germany
- Prior art keywords
- thermocouple
- galvanometer
- radiation
- temperature
- measurement object
- 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.)
- Expired
Links
- 230000005855 radiation Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 1
- 235000015250 liver sausages Nutrition 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 2
- LIXXICXIKUPJBX-UHFFFAOYSA-N [Pt].[Rh].[Pt] Chemical compound [Pt].[Rh].[Pt] LIXXICXIKUPJBX-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003287 optical effect Effects 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
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/56—Electrical features thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Messung im besonderen sehr hoher Temperaturen bewerkstelligt man neuerdings häufig in der Weise, daß man die Strahlung des zu messenden Körpers mit der eines anderen vergleicht, dessen Temperatur bekannt oder unmittelbar ablesbar ist. Als Normal wird dabei meistens eine elektrische Glühlampe benutzt, für deren verschiedenen Temperaturen entsprechende Glühzustände dieThe measurement of very high temperatures in particular has recently been carried out often in such a way that the radiation of the body to be measured is compared with that of a compares to others whose temperature is known or immediately readable. as Usually an electric light bulb is used for the various ones Temperatures corresponding annealing states
ίο zugehörigen Spannungen oder Intensitäten des die Lampe heizenden Betriebsstromes vorher festgestellt waren. Für die Praxis bringt jedoch die Benutzung der Glühlampe einige Unbequemlichkeiten mit sich, einmal dadurch, daß mit dem Meßapparat noch eine Stromquelle verbunden sein muß, welche die Glühlampe speist, und dann dadurch, daß es kaum möglich ist, verschiedene Lampen mit gleichen Konstanten herzustellen, weshalb man davon absehen muß, den Apparat ein für alle Mal zu eichen und auf die Benutzung von Tabellen, die für jede Lampe anders ausfallen, angewiesen ist.ίο associated tensions or intensities of the operating current heating the lamp were previously determined. For the practice however, the use of the incandescent lamp brings some inconvenience once in that a power source must be connected to the measuring apparatus, which the Incandescent lamp feeds, and then, because it is hardly possible, different lamps with the same constants, which is why one must refrain from using the apparatus to calibrate once and for all and to use tables that are different for each lamp fail, is dependent.
Bei dem hier zu beschreibenden Wärmemesser sind diese Ubelstände dadurch vermieden , daß als Normal nicht eine Glühlampe, sondern ein Thermoelement, das jederzeit reproduzierbar ist, Verwendung findet. Dieses Thermoelement könnte zwar unter Umständen auch durch Strom mittel- oder unmittelbar erhitzt werden — unmittelbar etwa durch Wechselstrom, während zum Messen ein von der Stromrichtung unbeeinflußtes Instrument dient, mittelbar durch einen kleinen elektrischen Ofen oder Heizkörper — aber es ist zweckmäßiger, dasselbe einer heißen Flamme, unter Benutzung eines geeigneten durchsichtigen Schutzrohres, auszusetzen. Die heiße Flamme kann etwa von einer Aeolipile oder Lötlampe geliefert werden, während als Schutzrohr ein dünnwandiges Quarzrohr Verwendung findet, welches ohne zu springen plötzliche Temperaturwechsel verträgt.With the heat meter to be described here, these inconveniences are avoided that the standard used is not an incandescent lamp, but a thermocouple that can be reproduced at any time. This thermocouple could possibly also be medium or by current are heated directly - directly, for example by alternating current, while for An instrument that is not influenced by the direction of the current is used to measure, indirectly through one small electric oven or radiator - but it is more convenient to have the same one hot Exposure to flame using a suitable transparent protective tube. the hot flame can be delivered while as an aeolipile or blowtorch about Protective tube a thin-walled quartz tube is used which does not crack tolerates sudden changes in temperature.
Fig. ι und 2 zeigen eine Ausführungsform des neuen optischen Pyrometers. In dem wagerechten Rohr r ist der Erhitzungsapparat / — hier als Benzinlötlampe dargestellt — untergebracht. Dieses Rohr r ist bei q, an der Stelle, wo die Flamme die größte Hitze liefert, durchbohrt, so daß ein dünnes Quarzrohr hindurchgesteckt werden kann, in welchem ein Thermoelement, etwa die Kombination Platin-Platinrhodium, untergebracht ist. Die Strahlung dieses letzteren wird von einem bei h befindlichen, unter 450 geneigten Hohlspiegel reflektiert, so daß bei α ein reelles Bild des glühenden Thermoelementes entsteht. An der nämlichen Stelle bezw. unmittelbar daneben wird durch das Objektiv 0 das Bild des zu messenden glühenden Körpers entworfen, so daß ein- durch das Okular k blickendes Auge beide Bilder miteinander vergleichen kann. Um diesen Vergleich zu erleichtern, ist es zweckmäßig, von dem zuFig. Ι and 2 show an embodiment of the new optical pyrometer. The heating apparatus / - shown here as a gasoline blowtorch - is housed in the horizontal tube r. This tube r is pierced at q, at the point where the flame delivers the greatest heat, so that a thin quartz tube can be pushed through, in which a thermocouple, for example the combination of platinum-platinum rhodium, is housed. The radiation of this latter is reflected by a in h, located at 45 0 inclined concave mirror so that, when α is a real image of the glowing thermocouple is formed. In the same place respectively. Immediately next to it, the image of the glowing body to be measured is designed by the objective 0, so that an eye looking through the eyepiece k can compare the two images with one another. To make this comparison easier, it is useful to refer to the
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE156008T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE156008C true DE156008C (en) | 1904-11-17 |
Family
ID=5677492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT156008D Expired DE156008C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE156008C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE917458C (en) * | 1952-10-12 | 1954-09-02 | Theo Muenker Dr Ing | Reference source |
-
0
- DE DENDAT156008D patent/DE156008C/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE917458C (en) * | 1952-10-12 | 1954-09-02 | Theo Muenker Dr Ing | Reference source |
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