CN106525281A - Optical fiber temperature measuring equipment based on rare earth ion upconversion fluorescence and temperature measuring method thereof - Google Patents
Optical fiber temperature measuring equipment based on rare earth ion upconversion fluorescence and temperature measuring method thereof Download PDFInfo
- Publication number
- CN106525281A CN106525281A CN201611171569.XA CN201611171569A CN106525281A CN 106525281 A CN106525281 A CN 106525281A CN 201611171569 A CN201611171569 A CN 201611171569A CN 106525281 A CN106525281 A CN 106525281A
- Authority
- CN
- China
- Prior art keywords
- fluorescence
- optical fiber
- prism
- rare earth
- earth ion
- 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
Links
Classifications
-
- 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
Abstract
The invention relates to optical fiber temperature measuring equipment based on rare earth ion upconversion fluorescence and a temperature measuring method thereof. The equipment comprises a laser used for providing excitation light, a first transmission optical fiber used for transmitting the excitation light, a cube-corner prism which is arranged at a temperature measuring position and is used for collecting and separating the upconversion fluorescence, a second optical fiber used for transmitting the upconversion fluorescence and a fluorescence life detection apparatus used for detecting a fluorescence life. One end of the first transmission optical fiber is connected to the laser and the other end is fixedly connected to the cube-corner prism. One end of a second transmission optical fiber is fixedly connected to the cube-corner prism and the other end is connected to the fluorescence life detection apparatus. The equipment and the method have advantages that through cooperation of the laser and the cube-corner prism, temperature measurement is performed; through the cube-corner prism, the upconversion fluorescence is separated; and the upconversion fluorescence is transmitted to the fluorescence life detection apparatus so as to acquire a corresponding temperature value.
Description
Technical field
A kind of the present invention relates to optical fiber temperature-measurement field, more particularly to optical fiber temperature-measurement dress based on rare earth ion up-conversion fluorescence
Put and its temp measuring method.
Background technology
As some thermometric scenes have relatively rugged environment, such as high temperature, high pressure, high electromagnetic interference, or even some surveys
There are certain corrosivity, radioactivity in warm scene；Or inflammable and explosive etc., it is unsuitable for electronic temperature measurement equipment and works at the scene.For solving
A difficult problem for thermometric in above adverse circumstances, many remote temperature measurement equipment are devised, such as：Remote infrared measurement of temperature sets
Standby, remote-wireless temperature measuring equipment etc..But, these electronic equipments all have some very crucial shortcomings, such as infrared measurement of temperature equipment
Easily by spatial light interference, the point for measuring temperature for being unable to automatic real-time measurement, narrow space can not being entered, produce electric spark etc..And it is wireless
The temperature measurement node of temperature measuring equipment is easily subject to live electromagnetic interference, largely effects on temperature measurement accuracy, or even cannot carry out thermometric, while
There is no anticorrosive, capability of resistance to radiation.
The fluorescence lifetime thermometry for rising in recent years, is by the use of ultraviolet or black light as pump light, to containing europium
Fluorescent RE powder carries out pumping so as to launch down-conversion fluorescent, and fluorescence is presented pink or redness etc..Then, by big straight
Fluorescence is sent to fluorescence lifetime detection means by footpath optical fiber, so as to converse point for measuring temperature temperature.The technology can be good at solving
The thermometric that the various mal-conditions in thermometric scene are caused is difficult.But, as this fluorescence lifetime thermometry is used containing europium
The down-conversion fluorescent of rare-earth luminescent material, pump light and wavelength of fluorescence be not in the low loss window of optical fiber, therefore optical fiber is to pump
The loss of Pu light and fluorescence is all very big；Not enough based on more than, existing fluorescence lifetime thermometry cannot realize long range thermometric, its
Thermometric distance can only achieve tens meters, cause fluorescence lifetime detection means be necessarily mounted at apart from thermometric scene it is relatively near where,
Fluorescence lifetime detection means is affected by severe scene, the situation that temperature measurement accuracy is reduced or even cannot be worked occur.
For solving the problems, such as above long range thermometric, up-converting phosphor technology of the research using light stimulus rare earth ion is upper to turn
Also referred to as frequency upooaversion or up-conversion is changed, i.e., the process of short-wave long light-emitting is produced with the light irradiation material of long wavelength.Earliest
With regard to the luminescence studies changed on rare earth ion, phase early 1950s can be traced back to, swashed due to changing on rare earth
The unique advantage of the aspects such as light output, night vision, the both at home and abroad up-conversion luminescence of many research teams, scientific ＆ technical corporation to rare earth ion
Characteristic and mechanism expand relatively comprehensive, systematic research.At present, the upconversion mechanism of rare earth ion is applied to conversion and swashs
The fields such as light output, upper conversion three dimensional display, upper conversion infrared acquisition, upper conversion anti-counterfeiting technology.Up-conversion luminescence mechanism is main
Including conversion in Excited-state Absorption, energy transmission, cooperation, and photon avalanches etc., wherein cooperative luminescence process is typically occurred in
Between two ions of the same race.This process 1970 by Nakazawa first in YbPO4Middle discovery.As shown in figure 1, with infrared or
Near-infrared laser carries out pumping as pumping to rare earth ion, and rare earth ion a and b are distinguished pumping to excited state；In exciting
The a ions and b ions of state transfers energy to a virtual excited level simultaneously, launches the fluorescence of corresponding wavelength（On
Conversion fluorescence）, and a ions and b ions return to ground state by radiationless transition.It has been investigated that, it is after pump light is cancelled, upper to turn
Change fluorescence to disappear at once, but can be decayed in the form of index；By the 1/e of fluorescence-intensity decay to initial fluorescence light intensity
The time experienced is referred to as fluorescence lifetime；Research shows that the up-conversion fluorescence life-span has determination with upconverting fluorescent material temperature
Functional relationship.Using the functional relationship of the up-conversion fluorescence life-span and temperature, just can be with as long as determining the up-conversion fluorescence life-span
The temperature of corresponding upconverting fluorescent material is extrapolated, so as to realize thermometric.
The content of the invention
The purpose of the present invention is for above weak point, there is provided a kind of optical fiber based on rare earth ion up-conversion fluorescence
Temperature measuring equipment and its temp measuring method, realize the thermometric of long range.
The present invention solves the scheme that adopted of technical problem：A kind of optical fiber temperature-measurement based on rare earth ion up-conversion fluorescence
Device, is used for providing the laser instrument of excitation light, the first Transmission Fibers for transmission excitation light, arranges and use with thermometric including one
In collecting and separate the prism of corner cube of up-conversion fluorescence, the second optical fiber for transmitting up-conversion fluorescence and for detecting the fluorescence longevity
The fluorescence lifetime detection means of life, described first Transmission Fibers one end are connected with laser instrument, and the other end is fixed with prism of corner cube and connected
Connect, described second Transmission Fibers one end is fixedly connected with the prism of corner cube, and the other end is connected with fluorescence lifetime detection means.
Further, the prism of corner cube is processed by the glass doped with rare earth ion, ceramics or crystal-cut, institute
Prism of corner cube is stated for right angle prism, pump light highly reflecting films and the on two articles of upper right-angle sides of the corner cube prism, is coated with respectively
One fluorescence highly reflecting films；It is coated with the highly transmissive film of pump light on two lower right-angle sides of the corner cube prism respectively and the second fluorescence is high
Reflectance coating.
Further, first Transmission Fibers and the second Transmission Fibers be respectively perpendicular to prism of corner cube upper right-angle side or
Lower right-angle side is arranged.
Further, the rare earth ion is Er3+、Yb3+、 Pr3+、Tm3+Or Er3+、Yb3+、 Pr3+、Tm3+Between group
Close.
Further, using Yb3+And Er3+Fluoride glass is processed into right angle prism, and its processing method includes following step
Suddenly：
Step S1 presses 53%ZrF4、18%BaF2、3%LaF3、3%A1F3、20%NaF、 1%YbF3、1% ErF3Molar fraction than claim
Take common m gram of the mentioned component that purity is 99.99% to be positioned in agate mortar, wherein 10≤m≤1000, be fully ground 1 hour system
Into sample, sample is put in the dry pot of white jade；
Step S2：The SF of specified quantitative is added in the dry pot of white jade6, and the dry pot cover of white jade is covered, white jade dry pot is placed into into high temperature
In burner hearth；
Step S3：High temperature furnace is opened, and is heated at 950 DEG C 1 hour, then 1 hour is incubated at 770 DEG C again；
Step S4：Turn off high temperature furnace, carry out natural cooling；
Step S5：The sample after cooling is taken out from the dry pot of white jade, is made both bulk glasses and is cut, obtains right-angle prismatic
Mirror.
Further, the laser instrument is pump laser, and the excitation light is pump light.
Further, first Transmission Fibers and the second Transmission Fibers are silica fibre, plastic optical fiber or nylon light
It is fine.
Further, the fluorescence lifetime detection means is included a Master control chip and is electrically connected with the Master control chip
For receiving photoelectric conversion module, display module and the communication module of the input of the second Transmission Fibers, the photoelectric conversion module according to
Mono- signal amplification modules of secondary Jing and an AD conversion module are electrically connected with the Master control chip；The Master control chip Jing communication modules
It is electrically connected with outer PC；The Master control chip is also electrically connected with the laser instrument.
Further, the photoelectric conversion module is PIN photodiode；The Master control chip is MCU control chips.
The present invention also provides a kind of survey of the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence as described above
Warm method, prism of corner cube is arranged at thermometric, opens laser instrument, and the light that laser instrument is sent is transmitted as excitation light Jing first
To prism of corner cube, excitation light is impinged perpendicularly on prism of corner cube fiber-optic transfer, produces up-conversion fluorescence, and up-conversion fluorescence is from angle
Cone prism outgoing, is coupled to the second Transmission Fibers, and the second Transmission Fibers of Jing are transferred to fluorescence lifetime detection means and carry out conversion
The detection of fluorescence lifetime, obtains corresponding temperature value at thermometric.
Compared with prior art, the present invention has following beneficial effect：
（1）Do not affected by electromagnetic interference, traditional thermometric mode is all to carry out thermometric by the change of the signal of telecommunication, in forceful electric power or
Occur in the case of strong magnetic disturbance that thermometric is inaccurate, temperature measurement accuracy reduce even cannot normal work situation.It is more than the present invention
The rule that the fluorescence lifetime of conversion fluorescence is varied with temperature refers to the physical quantity relevant with light as temperature-measurement principle, will not
By any impact of strong electromagnetic.
（2）Thermometric to inflammable and explosive environment, realizes the electronic device and equipment for producing electric spark away from point for measuring temperature.The present invention
Prism of corner cube is installed at point for measuring temperature, laser instrument and fluorescence lifetime detector at thermometric farther out, up to 100 meters ~ 1000
Rice, i.e. the first Transmission Fibers and the second Transmission Fibers can a length of 100 meters ~ 1000 meters, realize long range automatic temperature measurement.
（3）The excitation light adopted by up-conversion fluorescence thermometric is for infrared or near infrared light（Such as 980nm, 1550nm wavelength）,
What is adopted in the existing purple light excitation down-conversion fluorescent thermometry of loss ratio when this band of light is propagated in a fiber is ultraviolet or near
Loss much smaller (about 1/10th) when ultraviolet light (such as 395nm) is propagated in a fiber, and the fluorescence for producing is in a fiber
Loss is close or less, more than converts fluorescence thermometric and can really realize long range thermometric.
（4）Low cost, the laser instrument of present invention employing, the first Transmission Fibers, second Transmission Fibers etc. are all conventional, skills
The reliable product of art, can substantially reduce the cost of up-conversion fluorescence temperature measuring equipment.
（5）Temperature measurement accuracy, sensitivity are high, because up-converting phosphor technology of the present invention, its pump light and upper turn
Change wavelength of fluorescence difference larger（Up-conversion fluorescence wavelength is about pump wavelength half, such as produces green glow with 980nm pump lights,
Or HONGGUANG）, easily realize that up-conversion fluorescence is separated with pump light, so that pump light is reduced to temperature measurement accuracy and sensitivity shadow
Ring, greatly improve temperature measurement accuracy and sensitivity.
Description of the drawings
Below in conjunction with the accompanying drawings patent of the present invention is further illustrated.
Fig. 1 is the schematic diagram that rare earth ion produces up-conversion fluorescence.
Control block diagrams of the Fig. 2 for the temperature measuring equipment of the embodiment of the present invention.
Structural representations of the Fig. 3 for the prism of corner cube of the embodiment of the present invention.
In figure：1- prism of corner cubes；The first Transmission Fibers of 2-；The second Transmission Fibers of 3-；4- pump light highly reflecting films；5- pumpings
The highly transmissive film of light；6- the first fluorescence highly reflecting films；7- the second fluorescence highly reflecting films.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, a kind of optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence of the present embodiment, including
One is used for providing the laser instrument for encouraging light, the first Transmission Fibers 2 for transmitting excitation light, arranges and be used for collecting simultaneously at thermometric
Separate the prism of corner cube 1 of up-conversion fluorescence, the second optical fiber for transmitting up-conversion fluorescence and for detecting the glimmering of fluorescence lifetime
Light life detecting device, described first Transmission Fibers, 2 one end are connected with laser instrument, and the other end is fixedly connected with prism of corner cube 1, institute
State 3 one end of the second Transmission Fibers to be fixedly connected with the prism of corner cube 1, the other end is connected with fluorescence lifetime detection means.
From the foregoing, the beneficial effects of the present invention is：The present invention is installed on prism of corner cube 1 at point for measuring temperature, laser
Device and fluorescence lifetime detector farther out, realize long range automatic temperature measurement at thermometric.
In the present embodiment, the prism of corner cube 1 is by the glass doped with rare earth ion, ceramics or crystal-cut processing
Into the prism of corner cube 1 is right angle prism, is coated with pump light high reflection respectively on two upper right-angle sides of the corner cube prism
Film 4 and the first fluorescence highly reflecting films 6；It is coated with highly transmissive 5 He of film of pump light on two lower right-angle sides of the corner cube prism respectively
Second fluorescence highly reflecting films 7.
In the present embodiment, first Transmission Fibers 2 and the second Transmission Fibers 3 are respectively perpendicular to the upper of prism of corner cube 1
Right-angle side or lower right-angle side are arranged.
In the present embodiment, the rare earth ion is Er3+、Yb3+、 Pr3+、Tm3+Or Er3+、Yb3+、 Pr3+、Tm3+Between
Combination.The fluorescent material that existing down-conversion fluorescent life-span temp measuring method is adopted all is the rare earth compound phosphor of europium doping
Material, these materials are all powder, are unfavorable for making, the stability of probe and the probe of temperature probe and accurately connecing for point for measuring temperature
Touch；And the upconverting fluorescent material that the present invention is adopted is single doping, the clear glass of codope or many doping, ceramics or crystal,
Prism of corner cube 1 simple, compact, firm can be combined with optical fiber, and accurately can be fitted on point for measuring temperature.
In the present embodiment, using Yb3+And Er3+Fluoride glass is processed into right angle prism, its processing method include with
Lower step：
Step S1：By 53%ZrF4、18%BaF2、3%LaF3、3%A1F3、20%NaF、 1%YbF3、1% ErF3Molar fraction than claim
Take common m gram of the mentioned component that purity is 99.99% to be positioned in agate mortar, wherein 10≤m≤1000, be fully ground 1 hour system
Into sample, sample is put in the dry pot of white jade；
Step S2：The SF of specified quantitative is added in the dry pot of white jade6, and the dry pot cover of white jade is covered, white jade dry pot is placed into into high temperature
In burner hearth；
Step S3：High temperature furnace is opened, and is heated at 950 DEG C 1 hour, then 1 hour is incubated at 770 DEG C again；
Step S4：Turn off high temperature furnace, carry out natural cooling；
Step S5：The sample after cooling is taken out from the dry pot of white jade, is made both bulk glasses and is cut, obtains right-angle prismatic
Mirror.
Research shows, when irradiating Yb with 976nm laser3+,Er3+During fluoride glass sample, sample can be launched very strong
Green up-conversion fluorescence, the wavelength of up-conversion fluorescence is between 515nm to 545nm.In order that 976nm laser can preferably by
Sample absorbs and gives off fluorescence, the pump light highly reflecting films centered on right-angle side plates 976nm on the right angle prism sample
4.Simultaneously in order to preferably collect up-conversion fluorescence, the 1 right angle top of prism of corner cube made in the sample plates 530nm and is
The up-conversion fluorescence of the pump light and 530nm of 976nm or so is entered by center, the first fluorescence highly reflecting films 6 of bandwidth 15nm, realization
Row high efficiency separation；The second fluorescence highly reflecting films 7 to 530nm are plated and to 976nm in the lower right-angle side in corner cube prism simultaneously
The highly transmissive film 5 of pump light, realize the pumping light transmission of 976nm and the up-conversion fluorescence of 530nm or so is reflected.When right angle three
Pump light optical fiber and fluorescence optical fiber are bonded together after all plated film is finished by upper and lower two right-angle side of prism using uv-curable glue,
It is fixed together with hypotenuse, forms combination of fiber-optic plated film right angle prism.
Pumping center wavelength of light be 976nm, the wavelength of up-conversion fluorescence between 515nm to 545nm, the first Transmission Fibers
2 select a diameter of 125 μm of common communications single-mode quartz optical fibers as pump light optical fiber, and the second fiber selection is a diameter of 400 μm
Multimode fibre as up-conversion fluorescence Transmission Fibers.
Experimentation obtains the fluorescence lifetime of the sample up-conversion fluorescence and is about 1700 microseconds at normal temperatures, and temperature
Often change one degree Celsius, fluorescence lifetime about changes 6 microseconds, so for conversion speed and the Master control chip of AD conversion module
Processing speed requirement is relatively low, so from STM32F103RCT6 as Master control chip, while have on the single-chip microcomputer adopting
The sample cycle most it is short be 1 microsecond AD conversion function, so without the need for additional AD conversion chip.The chip has serial communication work(simultaneously
Can, only RS232 communication functions just need to can be realized in the outside electrical level transferring chip plus a RS232.
In the present embodiment, the laser instrument is pump laser, and the excitation light is pump light.
In the present embodiment, first Transmission Fibers 2 and the second Transmission Fibers 3 be silica fibre, plastic optical fiber or
Nylon optical fiber.
In the present embodiment, the fluorescence lifetime detection means include a Master control chip and with the Master control chip electricity
The photoelectric conversion module, display module and the communication module that are input into for reception the second Transmission Fibers 3 even, the opto-electronic conversion mould
Mono- signal amplification modules of Jing and an AD conversion module are electrically connected block with the Master control chip successively；The Master control chip Jing communications
Module is electrically connected with outer PC.The laser instrument is electrically connected with the Master control chip.
In the present embodiment, the photoelectric conversion module is PIN photodiode；The Master control chip is controlled for MCU
Chip.
The present invention also provides a kind of survey of the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence as described above
Warm method, prism of corner cube 1 is arranged at thermometric, opens laser instrument, and the light that laser instrument is sent is passed as excitation light Jing first
Lose fine 2 to transmit to prism of corner cube 1, excitation light is impinged perpendicularly on prism of corner cube 1, produces up-conversion fluorescence, and upper conversion is glimmering
Light is coupled to the second Transmission Fibers 3 from 1 outgoing of prism of corner cube, and the second Transmission Fibers of Jing 3 are transferred to fluorescence lifetime detection means and enter
The detection in row up-conversion fluorescence life-span, obtains corresponding temperature value at thermometric.
The specific implementation process that the present invention provides temperature measuring equipment is as follows：
Adopt centre wavelength for 976nm semiconductor laser as pumping radiant, laser instrument is by STM32F103RCT6's
One IO foot control system can be realized turning off laser output within 15 nanoseconds.The laser of 976nm laser instrument output is logical as pump light
Cross a diameter of silica fibre of 125 μm（That is the first Transmission Fibers 2）Right angle prism is irradiated to after carrying out long-distance transmissions
On, up-conversion fluorescence is obtained on right angle prism：By pump light Yb3+,Er3+Fluoride glass material carries out pumping, makes
Up-conversion fluorescence of its launch wavelength between 515nm to 545nm.The right angle prism is by Yb3+And Er3+Fluoride glass
The right angle prism that material cuts into.First Transmission Fibers 2 and the second Transmission Fibers 3 pass through uv-curable glue with right angle prism
Bonding.Right angle prism has the effect for collecting up-conversion fluorescence simultaneously, and up-conversion fluorescence can go out on right angle prism hypotenuse
Penetrate, using the silica fibre of 400 μ m diameters as the second Transmission Fibers 3, up-conversion fluorescence is carried out incident after long range propagation
To the fluorescence lifetime detection means of nano second precision, the fluorescence lifetime detection means is using PIN photodiode as photosensitive unit
Part, optical signal is changed into and amplify through twice after the signal of telecommunication again, be then input in AD conversion module；Using
STM32F103RCT6 obtains digitized fluorescence decay curve Jing after AD conversion as Master control chip, the signal of telecommunication after amplification,
Master control chip extracts fluorescence lifetime from attenuation curve by algorithm, and the fluorescence lifetime for obtaining is by preset matched curve
The actual temperature at thermometric can be conversed.Through actual verification, the detection means enough detected for 10 fluorescence longevity more than nanosecond
Life change, corresponding to 0.01 degree Celsius of temperature change.From STM32F103RCT6 there is serial communication function, only need to be
Additional a piece of MAX232 achieves that RS232 communication functions as RS232 electrical level transferring chips.
In sum, a kind of optical fiber temperature-measurement device and its thermometric based on rare earth ion up-conversion fluorescence that the present invention is provided
Method, simple structure, low cost, reliability are high, it is possible to achieve the thermometric of long range.
Claims (10)
1. a kind of optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence, it is characterised in that：It is used for providing excitation including one
The laser instrument of light, for transmit excitation light the first Transmission Fibers, arrange and at thermometric be used for collect and separate up-conversion fluorescence
Prism of corner cube, the second optical fiber for transmitting up-conversion fluorescence and the fluorescence lifetime detection means for detecting fluorescence lifetime,
Described first Transmission Fibers one end is connected with laser instrument, and the other end is fixedly connected with prism of corner cube, second Transmission Fibers one
End is fixedly connected with the prism of corner cube, and the other end is connected with fluorescence lifetime detection means.
2. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 1, it is characterised in that：It is described
Prism of corner cube is processed by the glass doped with rare earth ion, ceramics or crystal-cut, and the prism of corner cube is right-angle prismatic
Mirror, is coated with pump light highly reflecting films and the first fluorescence highly reflecting films on two upper right-angle sides of the corner cube prism respectively；It is described
It is coated with the highly transmissive film of pump light and the second fluorescence highly reflecting films on two lower right-angle sides of corner cube prism respectively.
3. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 2, it is characterised in that：It is described
First Transmission Fibers and the second Transmission Fibers are respectively perpendicular to the upper right-angle side of prism of corner cube or lower right-angle side is arranged.
4. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 2, it is characterised in that：It is described
Rare earth ion is Er3+、Yb3+、 Pr3+、Tm3+Or Er3+、Yb3+、 Pr3+、Tm3+Between combination.
5. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 4, it is characterised in that：Using
Yb3+And Er3+Fluoride glass is processed into right angle prism, and its processing method is comprised the following steps：
Step S1：By 53%ZrF4、18%BaF2、3%LaF3、3%A1F3、20%NaF、 1%YbF3、1% ErF3Molar fraction than claim
Take common m gram of the mentioned component that purity is 99.99% to be positioned in agate mortar, wherein 10≤m≤1000, be fully ground 1 hour system
Into sample, sample is put in the dry pot of white jade；
Step S2：The SF of specified quantitative is added in the dry pot of white jade6, and the dry pot cover of white jade is covered, white jade dry pot is placed into into high temperature
In burner hearth；
Step S3：High temperature furnace is opened, and is heated at 950 DEG C 1 hour, then 1 hour is incubated at 770 DEG C again；
Step S4：Turn off high temperature furnace, carry out natural cooling；
Step S5：The sample after cooling is taken out from the dry pot of white jade, is made both bulk glasses and is cut, obtains right-angle prismatic
Mirror.
6. according to the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence described in claim 1, it is characterised in that：It is described to swash
Light device is pump laser, and the excitation light is pump light.
7. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 1, it is characterised in that：It is described
First Transmission Fibers and the second Transmission Fibers are silica fibre, plastic optical fiber or nylon optical fiber.
8. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 1, it is characterised in that：It is described
Fluorescence lifetime detection means include a Master control chip and with the Master control chip be electrically connected for receiving the second Transmission Fibers
The photoelectric conversion module of input, display module and communication module, the photoelectric conversion module successively mono- signal amplification modules of Jing and
One AD conversion module is electrically connected with the Master control chip；The Master control chip Jing communication modules are electrically connected with outer PC, described
Master control chip is also electrically connected with the laser instrument.
9. the optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence according to claim 8, it is characterised in that：It is described
Photoelectric conversion module is PIN photodiode；The Master control chip is MCU control chips.
10. a kind of optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence as described in claim 1-9 any one
Temp measuring method, it is characterised in that：Prism of corner cube is arranged at thermometric, open laser instrument, the light that laser instrument is sent as swash
Encourage the first Transmission Fibers of light Jing to transmit to prism of corner cube, excitation light is impinged perpendicularly on prism of corner cube, produces up-conversion fluorescence,
Up-conversion fluorescence is coupled to the second Transmission Fibers from prism of corner cube outgoing, and the second Transmission Fibers of Jing are transferred to fluorescence lifetime detection
Device carries out the detection in up-conversion fluorescence life-span, obtains corresponding temperature value at thermometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171569.XA CN106525281B (en) | 2016-12-17 | 2016-12-17 | Optical fiber temperature measuring device based on rare earth ion up-conversion fluorescence and temperature measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171569.XA CN106525281B (en) | 2016-12-17 | 2016-12-17 | Optical fiber temperature measuring device based on rare earth ion up-conversion fluorescence and temperature measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525281A true CN106525281A (en) | 2017-03-22 |
| CN106525281B CN106525281B (en) | 2023-08-01 |
Family
ID=58340958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611171569.XA Active CN106525281B (en) | 2016-12-17 | 2016-12-17 | Optical fiber temperature measuring device based on rare earth ion up-conversion fluorescence and temperature measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525281B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969854A (en) * | 2017-04-18 | 2017-07-21 | 大连世有电力科技有限公司 | Optical fiber temperature-measurement equipment pair fibre-optical probes |
| CN108061608A (en) * | 2018-01-30 | 2018-05-22 | 哈尔滨工业大学 | The temp measuring method of anti-white light-emitting diodes interference based on the ultraviolet up-conversion fluorescence of thulium ion |
| CN108168727A (en) * | 2017-12-27 | 2018-06-15 | 西北核技术研究所 | Low-reading thermometer and its temperature calibration and measuring method based on scintillation crystal |
| CN112111275A (en) * | 2020-08-26 | 2020-12-22 | 复旦大学 | Temperature measurement method based on rare earth luminescent life temperature probe |
| CN113040896A (en) * | 2021-03-25 | 2021-06-29 | 中国计量大学 | Photo-thermal treatment and temperature monitoring integrated system with replaceable probe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60164227A (en) * | 1984-02-06 | 1985-08-27 | Nec Corp | Temperature detecting method |
| US5730528A (en) * | 1996-08-28 | 1998-03-24 | Lockheed Martin Energy Systems, Inc. | High temperature thermometric phosphors for use in a temperature sensor |
| CN102798485A (en) * | 2012-08-14 | 2012-11-28 | 厦门大学 | Temperature sensing method based on upconversion fluorescent powder |
| CN206546219U (en) * | 2016-12-17 | 2017-10-10 | 福州大学 | Optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence |
-
2016
- 2016-12-17 CN CN201611171569.XA patent/CN106525281B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60164227A (en) * | 1984-02-06 | 1985-08-27 | Nec Corp | Temperature detecting method |
| US5730528A (en) * | 1996-08-28 | 1998-03-24 | Lockheed Martin Energy Systems, Inc. | High temperature thermometric phosphors for use in a temperature sensor |
| CN102798485A (en) * | 2012-08-14 | 2012-11-28 | 厦门大学 | Temperature sensing method based on upconversion fluorescent powder |
| CN206546219U (en) * | 2016-12-17 | 2017-10-10 | 福州大学 | Optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence |
Non-Patent Citations (3)
| Title |
|---|
| 吴悦等: "一种基于角锥棱镜的上转换荧光检测系统", 《集成技术》 * |
| 孙凯霞等: "980nm红外激发下氟氧化物中Er~(3+)的上转换可见发光", 《人工晶体学报》 * |
| 杨宏志: "浅议荧光寿命光纤温度传感器", 《企业导报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969854A (en) * | 2017-04-18 | 2017-07-21 | 大连世有电力科技有限公司 | Optical fiber temperature-measurement equipment pair fibre-optical probes |
| CN108168727A (en) * | 2017-12-27 | 2018-06-15 | 西北核技术研究所 | Low-reading thermometer and its temperature calibration and measuring method based on scintillation crystal |
| CN108061608A (en) * | 2018-01-30 | 2018-05-22 | 哈尔滨工业大学 | The temp measuring method of anti-white light-emitting diodes interference based on the ultraviolet up-conversion fluorescence of thulium ion |
| CN108061608B (en) * | 2018-01-30 | 2019-04-30 | 哈尔滨工业大学 | The temp measuring method of anti-white light-emitting diodes interference based on the ultraviolet up-conversion fluorescence of thulium ion |
| CN112111275A (en) * | 2020-08-26 | 2020-12-22 | 复旦大学 | Temperature measurement method based on rare earth luminescent life temperature probe |
| CN112111275B (en) * | 2020-08-26 | 2022-01-14 | 复旦大学 | Temperature measurement method based on rare earth luminescent life temperature probe |
| CN113040896A (en) * | 2021-03-25 | 2021-06-29 | 中国计量大学 | Photo-thermal treatment and temperature monitoring integrated system with replaceable probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106525281B (en) | 2023-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106525281A (en) | Optical fiber temperature measuring equipment based on rare earth ion upconversion fluorescence and temperature measuring method thereof | |
| Pérez-Rodríguez et al. | Relevance of radiative transfer processes on Nd3+ doped phosphate glasses for temperature sensing by means of the fluorescence intensity ratio technique | |
| CN201680925U (en) | Fluorescent optical fiber temperature sensor based on fluorescent service life detection | |
| CN206546219U (en) | Optical fiber temperature-measurement device based on rare earth ion up-conversion fluorescence | |
| CN102261966B (en) | Fluorescent optical fiber temperature measurement optical system | |
| CN102798485B (en) | Temperature sensing method based on upconversion fluorescent powder | |
| CN106495474A (en) | A kind of Eu that can be used for temperature sensing2+/Eu3+Codope glass ceramic composite material and its preparation method and application | |
| WO2017129131A1 (en) | Light path-coupling device and fluorescence temperature-sensing optical system | |
| CN109341891A (en) | Based on Er3+And Nd3+Method of the fluorescence intensity ratio of up-conversion luminescence for highly sensitive a wide range of temperature sensing | |
| CN107655659A (en) | A kind of laser communication terminal vacuum test system and its method of testing | |
| CN104155244A (en) | Optical-waveguide biosensor for smartphone | |
| CN104390940A (en) | Near-infrared laser visibility meter based on upconversion single-photon detector | |
| CN103698302B (en) | The multi-angle Multi point measuring apparatus of gain medium bound edge residual reflection and method | |
| CN205038162U (en) | Fluorescence detection device | |
| CN206161190U (en) | Optical fiber temperature sensor based on fluorescence intensity compares | |
| CN204086537U (en) | A kind of photoswitch realizes the passive laser ranging system of optical fiber type of inside and outside optical path compensation | |
| CN101880487A (en) | Preparation method of anti-counterfeit paint with property of multiple optics frequency conversion and anti-counterfeit detection method | |
| CN103134533B (en) | Based on twin-channel distribution type optical fiber sensing equipment and its operation method | |
| CN203216637U (en) | Small fluorescence optical fiber temperature sensing probe | |
| CN203643335U (en) | Multi-angle multi-point measuring device for laser gain medium covered edge residual reflection | |
| CN206399554U (en) | Fluorescent optical fiber temperature sensor and fluorescence optical fiber TEMP optical system | |
| Xu et al. | Fabrication and optical properties of Tb3+‐doped NaCaPO4 glass‐ceramics and their radiation detection applications | |
| CN115452017A (en) | Fiber grating sensing system based on frequency-swept laser | |
| CN206905934U (en) | The double fibre-optical probes of optical fiber temperature-measurement equipment | |
| CN207423497U (en) | Laser communication system optical antenna isolation measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |