CN110220613A - A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device - Google Patents
A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device Download PDFInfo
- Publication number
- CN110220613A CN110220613A CN201910547648.3A CN201910547648A CN110220613A CN 110220613 A CN110220613 A CN 110220613A CN 201910547648 A CN201910547648 A CN 201910547648A CN 110220613 A CN110220613 A CN 110220613A
- Authority
- CN
- China
- Prior art keywords
- sapphire pipe
- blackbody chamber
- optical fiber
- temperature
- measurement device
- 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
- 229910052594 sapphire Inorganic materials 0.000 title claims abstract description 47
- 239000010980 sapphire Substances 0.000 title claims abstract description 47
- 239000013307 optical fiber Substances 0.000 title claims abstract description 24
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a kind of sapphire pipe blackbody chamber optical fiber temperature-measurement devices, and wherein optical system includes sapphire pipe blackbody chamber, lens of lens group and Y type energy-transmission optic fibre, and circuit system includes photodetector, signal processing module and display module；Sapphire pipe blackbody chamber is formed by the plated film on the inside of sapphire pipe sealed end, sapphire pipe blackbody chamber is contacted as detector probe with environment to be measured, and the heat radiation energy under environment temperature is converged into Y type energy-transmission optic fibre by lens of lens group, heat radiation energy is divided into two-way energy beam by Y type energy-transmission optic fibre, two-way energy beam is converted to electric signal and sends signal processing model to by photodetector carries out signal processing, digital signal is obtained, display module obtains temperature value to be measured according to digital signal and shown.The present invention combines blackbody chamber with lens of lens group, and optical system is avoided to be continuously exposed to adverse circumstances, the hot industry field suitable for long-time thermometric.
Description
Technical field
The invention belongs to industrial high temperature fields of measurement, in particular to a kind of sapphire pipe blackbody chamber temperature measuring equipment.
Background technique
In industrial high temperature fields of measurement, traditional thermocouple temperature measurement is widely used, but its there are resistance to corrosions poor, longevity
Order short, the disadvantages of consumption is big, and price is high.Radiant thermometric technology is since with strong antijamming capability, not affected by environment, response is fast
The advantages that fast is spent, just by the concern of researchers since its appearance.Traditional contactless hyperthermia radiation thermometry is usual
Its collection optical system is also exposed in hot environment, is easy to cause camera lens corrosion or gas phase heavy in hot environment for a long time
Product, causes collection optical system to deteriorate, so that temperature-measuring results will generate error.
The 56 series of IR temperature measurers of German DIAS, system accuracy in the range of 500 DEG C to 3300 DEG C reach 0.5%
Measured value, repeatable accuracy 0.1%, temperature resolution are 0.1 DEG C.But these instruments need accurate optical lens and answer
Miscellaneous light signal processing device, thus it is difficult to be made into compact-sized, cheap measuring instrument.
Optical fiber radiation temperature measuring equipment utilizes Planck blackbody radiation law, using silica fibre leading as transmission light energy
Body, then cooperate light-sensitive element and processing circuit composed structure type sensor, it is broadly divided into optical fiber radiation thermo detector and colorimetric
Thermo detector generally is contactless, without directly contacting with heat source, can be efficiently used for high temperature measurement, make up metal fever
The deficiency of galvanic couple High Temperature Measurement Technique.
Summary of the invention
In order to solve the technical issues of above-mentioned background technique is mentioned, the invention proposes a kind of sapphire pipe blackbody chamber optical fiber
Temperature measuring equipment.
In order to achieve the above technical purposes, the technical solution of the present invention is as follows:
A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device, including optical system and circuit system, the optical system packet
Sapphire pipe blackbody chamber, lens of lens group and Y type energy-transmission optic fibre are included, the circuit system includes photodetector, signal processing
Module and display module；The sapphire pipe blackbody chamber is formed by the plated film on the inside of sapphire pipe sealed end, sapphire
Pipe blackbody chamber is contacted as detector probe with environment to be measured, and the heat radiation energy under environment temperature is converged by lens of lens group
To Y type energy-transmission optic fibre, heat radiation energy is divided into the energy beam of two-way different-waveband by Y type energy-transmission optic fibre, and the two of Y type energy-transmission optic fibre
Branches end is connected with photodetector respectively, and two-way energy beam is converted to electric signal and sends signal to by photodetector
It handles model and carries out signal processing, obtain digital signal, display module obtains temperature value to be measured according to digital signal and carries out
Display.
Preferred embodiment based on the above-mentioned technical proposal, the signal processing module and display module are integrated in bar printing electricity
On the plate of road.
Preferred embodiment based on the above-mentioned technical proposal, the sapphire pipe use standard monocrystalline sapphire pipe.
Preferred embodiment based on the above-mentioned technical proposal, the Y type energy-transmission optic fibre use silica fibre, and surface uses metal
Armour is protected, and the deviation of two-way branch is less than 5%.
Preferred embodiment based on the above-mentioned technical proposal, the photodetector use the InGaAs light of standard FC/PC encapsulation
Electric diode and Si photodiode, the corresponding signal for receiving the output of Y type energy-transmission optic fibre two-way branch of two kinds of photodiodes.
Preferred embodiment based on the above-mentioned technical proposal, the signal processing module include sequentially connected logafier,
Operational amplifier and converter；The logafier can incude Weak current signal, compare two-way current signal
Value calculates, output voltage signal；Voltage signal is adjusted in converter sample range by the operational amplifier；The AD turns
Parallel operation converts analog signals into digital signal.
Preferred embodiment based on the above-mentioned technical proposal, the display module include microprocessor and charactron, microprocessor
According to the digital signal that signal processing module exports, obtained using curve-fitting method to testing temperature, and temperature display to be measured is existed
On charactron.
Preferred embodiment based on the above-mentioned technical proposal, circuit system is placed in electronic box, is isolated with high temperature source, avoid to
Survey interference of the environment to circuit system.
By adopting the above technical scheme bring the utility model has the advantages that
(1) present invention uses sapphire pipe, and plated film forms blackbody chamber on the inside of sapphire pipe sealed end, certainly due to sapphire
Body has the characteristics that corrosion-and high-temp-resistant, without additionally providing protection for blackbody chamber；
(2) for the present invention when sapphire pipe breaks down, damage risk is not present in collection system, without recalibrating
Sapphire pipe can easily be replaced；
(3) lens of lens group is not directly contacted with high temperature thermal field in the present invention, avoids optical system and is continuously exposed to badly
Environment, to reduce due to the risk for causing optical system to deteriorate of corroding or be vapor-deposited；
(4) outside of Y type energy-transmission optic fibre is protected with metal armour in the present invention, has been allowed to anti-and has been suppressed stretch-proof function
Can, varying environment can be better adapted to, optical fiber itself has anti-electromagnetic interference capability, makes main body circuit one by the connection of optical fiber
Determine degree and reduce interference far from furnace body high temperature source, ensure that the stability to work online for a long time；
(5) present invention uses the photodetector of two kinds of different models, passes through waves different from y-type optical fiber combined use realization
The selection of section, so that whole more compact, miniaturization.
(6) signal processing module is highly integrated with display module in the present invention, is easily installed in suitable position.
Detailed description of the invention
Fig. 1 is sapphire pipe blackbody chamber organigram of the present invention；
Fig. 2 is the system block diagram of sapphire pipe blackbody chamber optical fiber temperature-measurement device of the present invention；
Fig. 3 is the structural schematic diagram of sapphire pipe blackbody chamber optical fiber temperature-measurement device of the present invention.
Label declaration: 1, it is coated with the sapphire pipe of blackbody chamber；2, lens of lens group；3, Y type energy-transmission optic fibre；4, photodetection
Device；5, signal processing module and display module；1.1, standard monocrystalline sapphire pipe；1.2, blackbody chamber.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention is described in detail.
As depicted in figs. 1 and 2, a kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device that the present invention designs, including optical system
System and circuit system, optical system are included in sapphire pipe 1, lens of lens group 2 and Y the type biography that sealing one end is coated with blackbody chamber
It can optical fiber 3.Wherein 1.1 specification of standard monocrystalline sapphire pipe is(internal diameter 5mm* outer diameter 8mm* length 400mm),
Wherein one end is sealed end；One layer is plated in sapphire pipe sealed end bottom and adjacent wall using vacuum magnetron sputtering coating film technology
The Al of 1~2 μ m-thick, 5mm long2O3Coating forms blackbody chamber 1.2；2 coupled wavelength range 350nm of lens of lens group~
The silica fibre that 2000nm, Y type energy-transmission optic fibre 3 is 600 μm using fibre core, two-way branch deviation is less than 5%.Circuit system
Including photodetector 4, signal processing module and display module 5, wherein both signal processing module and display module are integrated.Light
Electric explorer 4 can be divided using two kinds of photodiodes of InGaAs and Si of standard FC/PC encapsulation in conjunction with front end Y type energy-transmission optic fibre 3
It Xuan Qu not two wave bands of 800~1700nm and 400~1100nm；Signal processing module include logafier, operational amplifier,
Low noise converter, logafier can sense the Weak current signal of pA rank, carry out radiometer to two-way electric current
Calculate output voltage signal, operational amplifier by voltage signal be adjusted to corresponding A/D sampling can value range, converter use
It is 24 sampling with high precision chips, can accurately samples the analog signal of input at work；Display module utilizes microprocessor
It is realized with charactron, under normal temperature, the digital signal of input is carried out algorithm fitting by microprocessor, is realized on charactron
Real time temperature is shown.
Fig. 3 is structural schematic diagram of the invention.Optical system is mutually indepedent with circuit system, and entire circuit system can be placed in
In electronic box, interference when can preferably avoid thermometric site environment to equipment circuit part thermometric improves system far from high temperature source
Service life.Present invention optimizes conventional radiation temperature measurer camera lenses the problem of hot environment easily corrodes, by standard monocrystalline indigo plant
Jewel pipe 1 is combined with lens of lens group 2, and camera lens is avoided to be exposed to hot environment for a long time.In addition, occurring in sapphire pipe 1
Under fault condition, damage risk is not present in collection system, can easily replace standardization sapphire pipe without recalibrating.
Implementation method of the apparatus of the present invention in actual measurement is illustrated in conjunction with Fig. 1 and Fig. 3.First by lens of lens group
It is fixed on suitable position, and makes to be coated with blackbody chamber sapphire pipe 1 and be in contact with environment to be measured；To blackbody chamber 1.2 and environment to be measured
After thermal balance, according to Planck blackbody theory of radiation, blackbody chamber 1.2 is the heat radiation radiated at this temperature；Heat radiation energy is logical
It crosses lens of lens group 2 and converges to Y type energy-transmission optic fibre 3, and be divided into energy beam similar in two-way herein；Two tail end of Y type energy-transmission optic fibre
It is connected respectively with two kinds of photodetectors 4, the wavelength of two kinds of photodetector response different-wavebands generates two kinds of corresponding electric currents；
Access is integrated with the circuit system 5 of signal processing and display after two-way photodetector, carries out signal processing；Two-way electric current letter
It number carries out in logafier kind than operation, output voltage signal, then further adjusts amplification by operational amplifier, adapt it to
It is sampled in AD, by AD conversion, digital signal is received by microprocessor, is analyzed it processing by respective algorithms, is calculated
Relevant temperature value；Temperature value is exported by display module in numeral method.
Temperature calibration method of the invention uses the polynomial curve fitting method based on least square method, measures multi-point temperature
And its voltage sampling signal, then final temperature is obtained with the curve of radiation variation by fitting.Specific scaling method is using mark
Quasi- blackbody furnace acquires the voltage signal under different temperatures, directly the relationship of temperature and voltage sampling signal as measured target
5 order polynomial curve matchings are carried out, the relational expression of a temperature and sampled signal: T=ax is obtained5+b·x4+c·x3+d·
x2+ ex+f, wherein T is temperature (DEG C), and x is sampled signal values, and a, b, c, d, e, f are constant.This relational expression is written and is believed
Number processing module, and show that temperature value in display module, temperature measuring equipment works normally.
Embodiment is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, it is all according to
Technical idea proposed by the present invention, any changes made on the basis of the technical scheme are fallen within the scope of the present invention.
Claims (8)
1. a kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device, it is characterised in that: including optical system and circuit system, the light
System includes sapphire pipe blackbody chamber, lens of lens group and Y type energy-transmission optic fibre, the circuit system include photodetector,
Signal processing module and display module；Shape and the sapphire pipe blackbody chamber is the plated film on the inside of the sealed end in sapphire pipe
At sapphire pipe blackbody chamber is contacted as detector probe with environment to be measured, and the heat radiation energy under environment temperature is passed through lens
Group camera lens converges to Y type energy-transmission optic fibre, and heat radiation energy is divided into the energy beam of two-way different-waveband by Y type energy-transmission optic fibre, and Y type passes
Two branches ends of energy optical fiber are connected with photodetector respectively, and two-way energy beam is converted to electric signal simultaneously by photodetector
It sends signal processing model to and carries out signal processing, obtain digital signal, display module is obtained according to digital signal to testing temperature
Numerical value is simultaneously shown.
2. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the signal processing module
It is integrated in a printed circuit board with display module.
3. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the sapphire pipe uses
Standard monocrystalline sapphire pipe.
4. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the Y type energy-transmission optic fibre
Using silica fibre, surface is protected with metal armour, and the deviation of two-way branch is less than 5%.
5. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the photodetector is adopted
The InGaAs photodiode and Si photodiode encapsulated with standard FC/PC, the corresponding Y type that receives of two kinds of photodiodes pass energy
The signal of optical fiber two-way branch output.
6. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the signal processing module
Including sequentially connected logafier, operational amplifier and converter；The logafier can incude Weak current
Signal carries out ratio calculation, output voltage signal to two-way current signal；Voltage signal is adjusted to AD by the operational amplifier
Within the scope of converter sampling；The converter converts analog signals into digital signal.
7. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: the display module includes
Microprocessor and charactron, the digital signal that microprocessor is exported according to signal processing module, using curve-fitting method obtain to
Testing temperature, and by temperature display to be measured on charactron.
8. sapphire pipe blackbody chamber optical fiber temperature-measurement device according to claim 1, it is characterised in that: circuit system is placed in electricity
In sub- box, it is isolated with high temperature source, avoids interference of the environment to be measured to circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547648.3A CN110220613A (en) | 2019-06-24 | 2019-06-24 | A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547648.3A CN110220613A (en) | 2019-06-24 | 2019-06-24 | A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110220613A true CN110220613A (en) | 2019-09-10 |
Family
ID=67814564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547648.3A Pending CN110220613A (en) | 2019-06-24 | 2019-06-24 | A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220613A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617901A (en) * | 2019-09-25 | 2019-12-27 | 北京航空航天大学 | Sapphire optical fiber F-P high-temperature sensor with inclined reflection surface, preparation method and temperature sensing system |
| CN113588117A (en) * | 2021-08-10 | 2021-11-02 | 电子科技大学 | High-stability radiation temperature measurement miniature probe for turbine disc of aircraft engine |
| CN114812829A (en) * | 2022-06-27 | 2022-07-29 | 青岛融合光电科技有限公司 | Black body radiation source for industrial informatization and temperature testing equipment and method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501036Y (en) * | 2001-07-06 | 2002-07-17 | 何民才 | Parallel light focusing black-body cavity radiation thermometer |
| US20070223000A1 (en) * | 2004-04-08 | 2007-09-27 | Council For The Central Laboratory Of The Research Councils Clik Knowledge Transfer Daresbury Labor | Optical Sensor |
| CN202522326U (en) * | 2012-04-10 | 2012-11-07 | 长春工业大学 | Contact-noncontact type sapphire infrared temperature measurement system |
| CN103674322A (en) * | 2013-12-20 | 2014-03-26 | 陕西电器研究所 | Sapphire optical fiber temperature sensor using separate type probe |
| CN104330170A (en) * | 2014-10-21 | 2015-02-04 | 南京师范大学 | Optical fiber radiation thermometer based on colorimetric method |
| CN106066215A (en) * | 2016-07-29 | 2016-11-02 | 武汉理工大学 | A kind of sapphire pyrostat |
| CN106225951A (en) * | 2016-08-31 | 2016-12-14 | 江苏能建机电实业集团有限公司 | Sapphire fiber blackbody chamber pyrostat and temp measuring method thereof |
| CN107014520A (en) * | 2017-05-18 | 2017-08-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of capillary type high temperature fiber grating temperature sensor and preparation method thereof |
-
2019
- 2019-06-24 CN CN201910547648.3A patent/CN110220613A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501036Y (en) * | 2001-07-06 | 2002-07-17 | 何民才 | Parallel light focusing black-body cavity radiation thermometer |
| US20070223000A1 (en) * | 2004-04-08 | 2007-09-27 | Council For The Central Laboratory Of The Research Councils Clik Knowledge Transfer Daresbury Labor | Optical Sensor |
| CN202522326U (en) * | 2012-04-10 | 2012-11-07 | 长春工业大学 | Contact-noncontact type sapphire infrared temperature measurement system |
| CN103674322A (en) * | 2013-12-20 | 2014-03-26 | 陕西电器研究所 | Sapphire optical fiber temperature sensor using separate type probe |
| CN104330170A (en) * | 2014-10-21 | 2015-02-04 | 南京师范大学 | Optical fiber radiation thermometer based on colorimetric method |
| CN106066215A (en) * | 2016-07-29 | 2016-11-02 | 武汉理工大学 | A kind of sapphire pyrostat |
| CN106225951A (en) * | 2016-08-31 | 2016-12-14 | 江苏能建机电实业集团有限公司 | Sapphire fiber blackbody chamber pyrostat and temp measuring method thereof |
| CN107014520A (en) * | 2017-05-18 | 2017-08-04 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of capillary type high temperature fiber grating temperature sensor and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617901A (en) * | 2019-09-25 | 2019-12-27 | 北京航空航天大学 | Sapphire optical fiber F-P high-temperature sensor with inclined reflection surface, preparation method and temperature sensing system |
| CN113588117A (en) * | 2021-08-10 | 2021-11-02 | 电子科技大学 | High-stability radiation temperature measurement miniature probe for turbine disc of aircraft engine |
| CN113588117B (en) * | 2021-08-10 | 2022-10-14 | 电子科技大学 | High-stability radiation temperature measurement miniature probe for turbine disc of aircraft engine |
| CN114812829A (en) * | 2022-06-27 | 2022-07-29 | 青岛融合光电科技有限公司 | Black body radiation source for industrial informatization and temperature testing equipment and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102042993B (en) | System for measuring normal spectral emissivity of high-temperature material | |
| CN101943615B (en) | Temperature measuring method based on Raman light reflection | |
| CN110220613A (en) | A kind of sapphire pipe blackbody chamber optical fiber temperature-measurement device | |
| CN104330170A (en) | Optical fiber radiation thermometer based on colorimetric method | |
| CN103063312A (en) | Measuring system and method for measuring object emissivity | |
| CN106225951A (en) | Sapphire fiber blackbody chamber pyrostat and temp measuring method thereof | |
| KR101193492B1 (en) | An infrared fiber-optic probe for measuring the temperature of coolant system of nuclear power plant and the temperature measurement system using the same | |
| CN202522326U (en) | Contact-noncontact type sapphire infrared temperature measurement system | |
| CN102062636A (en) | Portable site laser energy measuring device | |
| CN102080990B (en) | Four-waveband high temperature measuring device and method | |
| CN111307324B (en) | Method for compensating APD temperature drift in Raman distributed optical fiber temperature measurement system | |
| CN114279597A (en) | High-precision low-power radiant heat flow meter capable of being used for radiant heat flow tracing calibration | |
| CN206504806U (en) | Sapphire fiber black-body cavity temperature sensor | |
| CN212133888U (en) | Color CCD self-calibration temperature measuring device based on radiation spectrum | |
| CN201892573U (en) | Near-infrared radiation thermometer | |
| CN202836768U (en) | Integrated optical fiber infrared temperature measuring device | |
| CN103616080A (en) | Portable optical fiber radiation thermodetector and measuring method thereof | |
| CN201837484U (en) | Temperature measuring device based on Raman light reaction | |
| CN102865930A (en) | Colorimetry-based test device for magnesium and magnesium alloy ignition temperature and use method of test device | |
| CN112857586A (en) | Infrared temperature measuring device based on fpga and temperature compensation calibration method | |
| CN105136311B (en) | A kind of blast funnace hot blast stove vault infrared optical fiber temperature checking method | |
| CN110864816A (en) | Multispectral high-voltage live equipment parameter gathers infrared radiation thermometer for appearance | |
| CN102692283A (en) | Device and method for measuring multi-FBG (fiber bragg grating) colorimetric transient temperature | |
| Hartmann | New developments in high-temperature measurement techniques | |
| Hao et al. | Study on the infrared lens-free irradiation thermometer based on InGaAs detector at NIM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190910 |
|
| RJ01 | Rejection of invention patent application after publication |