CN105865633A - Floating tracking temperature measurement method adopting heat conduction and radiation - Google Patents
Floating tracking temperature measurement method adopting heat conduction and radiation Download PDFInfo
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- CN105865633A CN105865633A CN201610338597.XA CN201610338597A CN105865633A CN 105865633 A CN105865633 A CN 105865633A CN 201610338597 A CN201610338597 A CN 201610338597A CN 105865633 A CN105865633 A CN 105865633A
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- 230000005855 radiation Effects 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000007667 floating Methods 0.000 title claims abstract description 18
- 238000009529 body temperature measurement Methods 0.000 title abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 27
- 239000000956 alloy Substances 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000005457 Black-body radiation Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001125877 Gobio gobio Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012546 transfer Methods 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
- G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
- G01J5/004—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids by molten metals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention provides a floating tracking temperature measurement method adopting heat conduction and radiation. According to the method, an alloy bar which resists impact of high temperature above 2000 DEG C and has heat conduction is inserted into the lower part of a tested converter, one end of the alloy bar is inserted into molten steel, and the other end of the alloy bar is exposed in air; the difference between the temperature of the end, inserted into the molten steel, of the alloy bar and the temperature of the end, exposed in the air, of the alloy bar is lower than 500 DEG C; a radiation measurement device is used for measuring first radiation strength and second radiation strength of the end, exposed in the air, of the alloy bar; the first radiation strength and the second radiation strength are substituted into a formula psi(t,lambda)=a*lambda <-5>*(e<b/t*lambda>-1)<-1>, and a binary linear equation is obtained; the binary linear equation is solved, and values of radiation coefficients a and b are acquired; the values of the radiation coefficients a and b are substituted into the formula, and the temperatures corresponding to different radiation strength values are solved. The temperature of the molten steel in the sealed and high-temperature converter can be accurately measured timely, the measurement accuracy can reach +/-1 DEG C, and the measurement range is 600-3,500 DEG C.
Description
Technical field
The present invention relates to a kind of temp measuring method.Particularly relate to a kind of floating tracking and temperature testing method of conduction of heat and radiation.
Background technology
In steel smelting procedure, the accurate temperature of molten steel can be measured in good time.For automatically controlling smelting process, reduce oxygen
Over-blowing, and then reduce the discharge of carbon dioxide, reduce production cost and improve product quality, be all very important.The most universal
The thermometric mode inserting thermocouple used, has applied decades, has not the most also had any method to replace.
The temp measuring method of thermocouple, is the temperature that once can only measure a time point, it is impossible to measure the temperature in smelting process continuously
Degree change.Automatically controlling of smelting process cannot be realized.Additionally use thermocouple measurement, owing to liquid steel temperature is higher, during thermometric
Thermocouple may be melted, and easily causes the pollution of molten steel.Often refining one heat steel is required for repeated measurement liquid steel temperature, also expends a large amount of
Thermocouple.
Existing infrared measurement of temperature method, although there is noncontact, response speed is fast, temperature-measuring range width, can display in good time etc. excellent
Point.But existing infrared measurement of temperature method, is all based on, on Planck (planck) formula of black body radiation, i.e. measured object being seen
Become black matrix, first its radiant intensity is measured, then carry out the correction of radiance.The physical model of ideal black-body can use Pu Lang
Gram (Planck) formula describes:
(λ, t) is blackbody radiation spectrum power density, and unit is watt centimetre for W in formula2Micron-1, λ is the wavelength of spectral radiance,
Unit is micron.T is blackbody temperature, and unit is K.C1For first radiation constant, C1=3.7415 × 10-12Watt centimetre2。C2
For second radiation constant C2=1.4388 centimetres of K.This is the heat radiation formula of black matrix.In esse testee, its radiation
Rate is all the composition with testee, temperature, wavelength and the complicated function that changes, does not has accurate Analytical Expression formula, is difficult to
Revise accurately.Therefore temperature measurement accuracy can only achieve the 1% of liquid steel temperature, this temperature measurement error of tens degree, it is impossible to meet smelting iron and steel
The requirements for automatic control of process.The difference of testee and black matrix is the radiance radiance less than black matrix of testee.Tested
Thing is the most all heat radiator, and it also observes heat radiation rule.But planck formula has been not particularly suited for conduction and two processes of radiation
Testee.
Converter that at present iron and steel enterprise smelts, in smelting process, body of heater is completely enclosed, does not has any to be available for infrared survey
Window.Steel can produce slag in smelting process, and its proportion is more much smaller than molten steel.Slag is by carbon, calcium, silicon, sulfur, phosphorus
Constituting Deng element, float over above molten steel, the thickness of slag is typically at 20 centimetres to 40 centimetres, and its temperature is lower 150 DEG C than molten steel
To about 250 DEG C.This is the biggest obstacle of molten steel infrared measurement of temperature.It addition, in smelting process oxygen blast produce flame, smog and
Dust etc., also can the severe jamming measurement of infra-red radiation.
Therefore, can be at the scene under mal-condition and environment in the urgent need to one, it is possible in closed furnace body, fire resistant, flue dust,
Electromagnetism interference, a kind of new temp measuring method that temperature measurement accuracy is high.
Summary of the invention
The technical problem to be solved is to provide a kind of molten steel that can be internal to the high-temperature furnace body closed, carry out accurate
The conduction of heat of in good time thermometric and the floating tracking and temperature testing method of radiation.
The technical solution adopted in the present invention is: a kind of floating tracking and temperature testing method of conduction of heat and radiation, comprises the steps:
1) by resistance to 2000 DEG C of high temperature above impact, the alloy bar with heat-conductive characteristic inserts the bottom of tested converter, described conjunction
One end of gold rod is immersed in molten steel, and the other end is exposed in air and constitutes the radiation source followed the tracks of that floats；
2) alloy bar is made to immerse the temperature of molten steel one end and be exposed within the temperature difference of one end is maintained at 500 DEG C in air；
3) use radiation measurement assembly to record alloy bar respectively and be exposed to first radiant intensity Ψ of one end in air1(t1, λ1) and the
Two radiant intensity Ψ2(t2, λ2), wherein, Ψ1(t1, λ1) be temperature be t1Corresponding wavelength λ1Time testee the first radiant intensity,
Ψ2(t2, λ2) be temperature be t2Corresponding wavelength λ2Time the second radiant intensity of being measured；
4) by the first radiant intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2) substitute into formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1
In, obtain linear equation in two unknowns:
Ψ1(t1, λ1)=a λ1 -5(eb/tλ1-1)-1
Ψ2(t2, λ2)=a λ2 -5(eb/tλ2-1)-1
In formula, t is the temperature of molten steel, and a, b are radiation coefficient, and the unit of a is watt centimetre2, the unit of b is a centimetre K, and K is
Absolute scale；
5) solution procedure 4) in linear equation in two unknowns obtain the value of radiation coefficient a and b；
6) value of radiation coefficient a and b is substituted into formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1In, obtain corresponding to different radiant intensity
Temperature.
Step 1) described in alloy bar use there is the tungsten of acid-alkali-corrosive-resisting, molybdenum, Copper alloy bar.
The outside of described alloy bar is enclosed with successively for reducing the heat insulation layer of thermal losses in conductive process, and is used for realizing heat
The matched expansion coefficient of the protective layer of the dynamic process of conduction and radiation, described protective layer and furnace lining.
Step 3) in, when described radiation measurement assembly is Single wavelength radiation measurement assembly, the first radiant intensity Ψ1(t1, λ1)
With the second radiant intensity Ψ2(t2, λ2In): t1≠t2, and λ1=λ2；When described radiation measurement assembly is that dual wavelength radiation measures dress
When putting, the first radiant intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2In): t1=t2, and λ1≠λ2。
A kind of conduction of heat of the present invention and the floating tracking and temperature testing method of radiation, it is possible to the molten steel within the high-temperature furnace body closed,
Carrying out accurate thermometric in good time, certainty of measurement is up to ± 1 DEG C of degree, and the scope of measurement can be from 600 DEG C--3500 DEG C, keep excellent.For a long time
Stability can realize the various requirement automatically controlling smelting process.The method of the present invention, distance coefficient is very big, up to 1/
1000.(D/S=1:1000) automatically controlling of smelting process can be realized.The method of the present invention also have be resistant to especially flame, smog,
Electromagnetism etc. disturb, and the cover layer having slag can be realized accurate thermometric.The present invention is applicable to the in good time thermometric of convertor steelmaking process.
It is also applied for the in good time thermometric of molten steel tundish, applies also for High-temp. kiln, the in good time thermometric of tunnel cave.
Accompanying drawing explanation
Fig. 1 be the inventive method used tungsten, molybdenum, the structural representation of Copper alloy bar；
Fig. 2 is that the method using the present invention carries out the conduction of heat of pneumatic steelmaking and the structural representation of the floating tracking and temperature testing of radiation；
Fig. 3 is that temperature survey schematic diagram is followed the tracks of in the floating using the inventive method to carry out conduction of heat and radiation；
Fig. 4 is the structural representation of the dual wavelength radiation measurement apparatus that the inventive method is used.
In figure
1: alloy bar 2: protective layer
3: insulating barrier 4: top blow oxygen lance
5: furnace shell 6: furnace lining
7: gudgeon 8: molten steel
9: dual wavelength radiation measurement apparatus 10: computer
11: receive and radiate object lens 12: long wave 1.15 μm reflection filter
13: the first silicon photo-detectors 14: shortwave 0.88 μm reflection filter
15: the second silicon photo-detectors 16: aim at eyepiece
17: infra-red radiation light
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, a kind of conduction of heat of the present invention and the floating tracking and temperature testing method of radiation are made specifically
Bright.
A kind of conduction of heat of the present invention and the floating tracking and temperature testing method of radiation, including the heat conduction portion of alloy bar and floating of radiation
Motion tracking part, according to alloy bar two ends temperature difference, will adjust the floating tracking and temperature testing scope of radiation.Specifically include following steps:
1) by resistance to 2000 DEG C of high temperature above impact, the alloy bar with heat-conductive characteristic inserts the bottom of tested converter, described conjunction
One end of gold rod is immersed in molten steel, and the other end is exposed in air, and alloy bar is exposed to the one end in air, has both played liquid steel temperature
The effect of conduction, constitutes again the radiation source followed the tracks of that floats；
Described alloy bar uses has the tungsten of acid-alkali-corrosive-resisting, molybdenum, Copper alloy bar；As it is shown in figure 1, described alloy bar
Outside is enclosed with successively for reducing the heat insulation layer of thermal losses in conductive process, and for realizing the dynamic mistake of conduction of heat and radiation
The matched expansion coefficient of the protective layer of journey, described protective layer and furnace lining.Described alloy bar can be horizontally inserted under tested converter
Portion, it is possible to oblique cutting enters the bottom of tested converter, but must assure that alloy bar is coaxial with the measurement head of radiation measurement assembly.
As by diameter 2.5 centimetres, the tungsten of length 100 centimetres, molybdenum, Copper alloy bar insert the bottom of converter, and one end is immersed in tested
In molten steel, the other end exposes in atmosphere.
2) make alloy bar immerse the temperature of molten steel one end and be exposed within the temperature difference of one end is maintained at 500 DEG C in air, make
There is sufficiently fast heat transfer process at two ends；
3) use radiation measurement assembly, record alloy bar respectively and be exposed to first radiant intensity Ψ of one end in air1(t1, λ1) and
Second radiant intensity Ψ2(t2, λ2), wherein, Ψ1(t1, λ1) be temperature be t1Corresponding wavelength λ1Time testee the first radiant intensity,
Ψ2(t2, λ2) be temperature be t2Corresponding wavelength λ2Time the second radiant intensity of being measured；
The present invention can use Single wavelength radiation measurement assembly measure, it would however also be possible to employ dual wavelength radiation measurement apparatus is carried out
Measure.Described Single wavelength radiation measurement assembly can be Beijing epoch Jia Xiang Science and Technology Ltd. produce PT300/300B type just
Take formula temperature measurer, or the GS-SR type fixed infrared temperature detector that Xi'an light sage energy sensor-based system company limited produces, or
The CIT type double color infrared temperature measuring instrument that Wuxi time Long Xing industry control Instrument Ltd. produces.
Heretofore described dual wavelength radiation measurement apparatus is to use dual wavelength radiation measurement apparatus as shown in Figure 4, includes:
Reception radiation object lens 11, long wave 1.15 μm reflection filter 12, shortwave 0.88 μm being successively set on infra-red radiation light 17
Reflection filter 14 and aiming eyepiece 16, wherein, the reflection light of described long wave 1.15 μm reflection filter 12 is provided with
First silicon photo-detector 13, the reflection light of described shortwave 0.88 μm reflection filter 14 is provided with the second silicon photo-detector 15.
When described radiation measurement assembly is Single wavelength radiation measurement assembly, the first radiant intensity Ψ1(t1, λ1) and the second radiation is by force
Degree Ψ2(t2, λ2In): t1≠t2, and λ1=λ2；When described radiation measurement assembly is dual wavelength radiation measurement apparatus, the first spoke
Penetrate intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2In): t1=t2, and λ1≠λ2。
4) by the first radiant intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2) substitute into the radiant intensity and liquid steel temperature conducted
Between corresponding relation formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1In, obtain linear equation in two unknowns:
Ψ1(t1, λ1)=a λ1 -5(eb/tλ1-1)-1
Ψ2(t2, λ2)=a λ2 -5(eb/tλ2-1)-1
In formula, t is the temperature of molten steel, and a, b are radiation coefficient, and the unit of a is watt centimetre2, for a centimetre K, (K claims the unit of b
For absolute scale.In various infrared measurement of temperature formula, all use absolute scale, unit also degree of being.During K=0, Celsius temperature is 273 DEG C.)
5) solution procedure 4) in linear equation in two unknowns obtain the value of radiation coefficient a and b；
6) value of radiation coefficient a and b is substituted into formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1In, obtain corresponding to different radiant intensity
Temperature.
A kind of conduction of heat of the present invention and the floating tracking and temperature testing method of radiation, according to the general formula of radiation temperature measurement:
Ψ (t, λ)=a λ-5(eb/tλ-1)-1
When temperature be t be 1500 DEG C--when 1800 DEG C, utilize dual wavelength infrared temperature measurement apparatus, micro-to 1.15 wavelength 0.75 micron
Meter Shi, accurately measures radiant intensity Ψ of measured object1(t, λ1) and Ψ2(t, λ2).Here Ψ1(t, λ1) it is corresponding wavelength λ1Time tested
The radiant intensity of object, Ψ2(t, λ2) it is corresponding wavelength λ2Time testee radiant intensity, for absolute temperature.It is updated to respectively
Ψ1(t, λ1)=a λ1 -5(eb/tλ1-1)-1And Ψ2(t, λ2)=a λ2 -5(eb/tλ2-1)-1Formula in, and solve the value of coefficient a and b.Will
The value of radiation coefficient a, b, is updated to the general formula of the radiation temperature measurement of the present invention: Ψ (t, λ)=a λ-5(eb/tλ-1)-1In, so that it may
To obtain the corresponding relation between the radiant intensity of testee and the temperature of testee.
Fig. 3 is to use the method for the present invention to measure the schematic diagram that liquid steel temperature obtains in stove, as can be seen from Figure 3 molten steel temperature in good time
The certainty of measurement of degree is at ± 1 DEG C of degree, and the scope of measurement can be from 800 DEG C--2500 DEG C, measure the time smelting situation according to each stove, also
All some small changes.
Claims (4)
1. the floating tracking and temperature testing method of a conduction of heat and radiation, it is characterised in that comprise the steps:
1) by resistance to 2000 DEG C of high temperature above impact, the alloy bar with heat-conductive characteristic inserts the bottom of tested converter, described conjunction
One end of gold rod is immersed in molten steel, and the other end is exposed in air and constitutes the radiation source followed the tracks of that floats；
2) alloy bar is made to immerse the temperature of molten steel one end and be exposed within the temperature difference of one end is maintained at 500 DEG C in air；
3) use radiation measurement assembly to record alloy bar respectively and be exposed to first radiant intensity Ψ of one end in air1(t1, λ1) and the
Two radiant intensity Ψ2(t2, λ2), wherein, Ψ1(t1, λ1) be temperature be t1Corresponding wavelength λ1Time testee the first radiant intensity,
Ψ2(t2, λ2) be temperature be t2Corresponding wavelength λ2Time the second radiant intensity of being measured；
4) by the first radiant intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2) substitute into formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1
In, obtain linear equation in two unknowns:
Ψ1(t1, λ1)=a λ1 -5(eb/tλ1-1)-1
Ψ2(t2, λ2)=a λ2 -5(eb/tλ2-1)-1
In formula, t is the temperature of molten steel, and a, b are radiation coefficient, and the unit of a is watt centimetre2, the unit of b is a centimetre K, and K is
Absolute scale；
5) solution procedure 4) in linear equation in two unknowns obtain the value of radiation coefficient a and b；
6) value of radiation coefficient a and b is substituted into formula Ψ (t, λ)=a λ-5(eb/tλ-1)-1In, obtain corresponding to different radiant intensity
Temperature.
The floating tracking and temperature testing method of a kind of conduction of heat the most according to claim 1 and radiation, it is characterised in that step 1)
Described alloy bar uses has the tungsten of acid-alkali-corrosive-resisting, molybdenum, Copper alloy bar.
The floating tracking and temperature testing method of a kind of conduction of heat the most according to claim 1 and radiation, it is characterised in that described
The outside of alloy bar be enclosed with successively for reducing the heat insulation layer of thermal losses in conductive process, and be used for realizing conduction of heat and spoke
The matched expansion coefficient of the protective layer of the dynamic process penetrated, described protective layer and furnace lining.
The floating tracking and temperature testing method of a kind of conduction of heat the most according to claim 1 and radiation, it is characterised in that step 3)
In, when described radiation measurement assembly is Single wavelength radiation measurement assembly, the first radiant intensity Ψ1(t1, λ1) and the second radiation
Intensity Ψ2(t2, λ2In): t1≠t2, and λ1=λ2；When described radiation measurement assembly is dual wavelength radiation measurement apparatus, first
Radiant intensity Ψ1(t1, λ1) and the second radiant intensity Ψ2(t2, λ2In): t1=t2, and λ1≠λ2。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11142246A (en) * | 1997-11-10 | 1999-05-28 | Nippon Steel Corp | Temperature measuring apparatus for molten metal |
| JP2000241254A (en) * | 1999-02-22 | 2000-09-08 | Horiba Ltd | Molten metal temperature measuring instrument for steel by continuous casting method |
| CN1527932A (en) * | 2001-07-27 | 2004-09-08 | 新日本制铁株式会社 | Molten metal temperature measuring instrument and method |
| CN101071079A (en) * | 2006-05-09 | 2007-11-14 | 重庆合创光电技术开发有限公司 | Novel molten steel temperature continuous measuring method and temperature-measuring tube |
| US20090074028A1 (en) * | 2005-12-21 | 2009-03-19 | Torsten Lamp | Converter with a Container for Receiving Molten Metal and with a Measurement Device for the Optical Temperature Determination of the Molten Metal and Method for the Temperature Determination in such a Converter |
| CN102620833A (en) * | 2011-02-01 | 2012-08-01 | 田乃良 | Infrared temperature measurement method and infrared temperature measurement system |
-
2016
- 2016-05-19 CN CN201610338597.XA patent/CN105865633A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11142246A (en) * | 1997-11-10 | 1999-05-28 | Nippon Steel Corp | Temperature measuring apparatus for molten metal |
| JP2000241254A (en) * | 1999-02-22 | 2000-09-08 | Horiba Ltd | Molten metal temperature measuring instrument for steel by continuous casting method |
| CN1527932A (en) * | 2001-07-27 | 2004-09-08 | 新日本制铁株式会社 | Molten metal temperature measuring instrument and method |
| US20090074028A1 (en) * | 2005-12-21 | 2009-03-19 | Torsten Lamp | Converter with a Container for Receiving Molten Metal and with a Measurement Device for the Optical Temperature Determination of the Molten Metal and Method for the Temperature Determination in such a Converter |
| CN101071079A (en) * | 2006-05-09 | 2007-11-14 | 重庆合创光电技术开发有限公司 | Novel molten steel temperature continuous measuring method and temperature-measuring tube |
| CN102620833A (en) * | 2011-02-01 | 2012-08-01 | 田乃良 | Infrared temperature measurement method and infrared temperature measurement system |
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