CN104132914B - Interference-type hydrogen gas sensor and preparation and application thereof - Google Patents
Interference-type hydrogen gas sensor and preparation and application thereof Download PDFInfo
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- CN104132914B CN104132914B CN201410373535.3A CN201410373535A CN104132914B CN 104132914 B CN104132914 B CN 104132914B CN 201410373535 A CN201410373535 A CN 201410373535A CN 104132914 B CN104132914 B CN 104132914B
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title description 7
- 239000002121 nanofiber Substances 0.000 claims abstract description 88
- 239000002070 nanowire Substances 0.000 claims abstract description 41
- 210000002381 Plasma Anatomy 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000005284 excitation Effects 0.000 claims abstract description 3
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 description 33
- 229910052739 hydrogen Inorganic materials 0.000 description 33
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 29
- 229910052763 palladium Inorganic materials 0.000 description 14
- 229910052904 quartz Inorganic materials 0.000 description 13
- 239000010453 quartz Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000003708 ampul Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000003287 optical Effects 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000000338 in vitro Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 235000012149 noodles Nutrition 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000835 electrochemical detection Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003534 oscillatory Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Abstract
The present invention provides a kind of interference-type hydrogen gas sensor, it is characterised in that including: bonder, the light source received is launched the light come and is divided into two-way and is transmitted respectively；First draws cone micro-nano fiber, and by evanescent wave coupled zone, one end is connected with bonder, receives and transmission of one line light；Polarium nano wire, one end is drawn with first the other end of cone micro-nano fiber to be connected, is drawn first and produce surface plasma signal under the excitation boring the light that micro-nano fiber transmission comes；Second draws cone micro-nano fiber, one end to be connected with the other end of Polarium nano wire, receives the next surface plasma signal of Polarium nano wire conduction and is transmitted；And the 3rd draw cone micro-nano fiber, one end is connected with bonder, the other end and second draws the other end of cone micro-nano fiber to contact, for transmitting another road light, and make this Lu Guangyu second draw the surface plasma signal of cone micro-nano fiber conduction to interfere, make second to draw cone micro-nano fiber output interference signal.
Description
Technical field
The present invention relates to sensor, particularly relate to a kind of Mach based on Polarium nano wire-
Pool moral micro-nano fiber interference-type hydrogen gas sensor and preparation and application thereof.
Background technology
Fibre Optical Sensor is in scientific research, industry, environment, medical treatment, military affairs, commodity and health etc. very
Many-side has obtained developing widely and applying.Along with the performance of sensor and application are wanted by people
That asks improves constantly, reduce size, improve integrated level, accelerate response speed, improve sensitivity,
Reduce sample requirements, widen limits of application etc. and have become as the important development side of moment sensor
To.Optical fiber technology is combined with current fast-developing nanotechnology, develop smaller,
Performance and integrated level higher nano optical fibers sensor, have the most wide application potential and send out
Exhibition prospect.
Hydrogen is critically important industrial gases and special gas, petrochemical industry, electronics industry,
The fields such as metallurgical industry, Minute Organic Synthesis and Aero-Space have a wide range of applications.But hydrogen
It is a kind of gas easily fired, can burn when aerial volume fraction is 4～75%.This
Outward, hydrogen colorless and odorless, there is the highest combustion heat.Therefore the detection to hydrogen is to weigh very much
Want, to detection device also have certain requirement, as low cost, small size, durability, can
Strong etc. by property.Compared with electrochemical detection method, optical detecting method is highly sensitive, and response is fast,
Anti-electromagnetism, be very suitable for detect flammable and explosive substance, and can use intensity, wavelength,
The multiple detection meanss such as phase place, polarization, fluorescence lifetime.Owing to the size of nano material is little, body
Surface area ratio is relatively big, and it is corresponding and the highest sensitive that the change of they environment to external world has quickly
Degree, is therefore quoted widely in various physics, chemistry and bio-sensing field.
Metal Palladium is to have higher dissolubility to hydrogen, in certain temperature and hydrogen pressure difference condition
Under, only allow the material that hydrogen passes through.The hydrogen that Metal Palladium absorbs is at most up to the 2800 of own volume
Times, in the vacuum that temperature is more than 300 DEG C, the hydrogen absorbed can be released.Palladium and hydrogen
This reaction is reversible.Outside dehydrogenation gas and isotope thereof, other any gases all can not be saturating
Cross palladium film, therefore Metal Palladium also has higher selectivity to hydrogen.Metal Palladium is as sensitive material
It is used in the optical sensing detection of hydrogen.Application nanometer Pd material and hydrogen reaction system at present
Structure and device, typically have the direct transmission-type of light based on palladium nano-particles, based on titanium dioxide
The optics evanescent wave type of silicon nanowires and semiconductor nanowires, and the surface of palladium nano-particles etc. from
Daughter resonance type.
A kind of electronic polarization that the in vitro primitive such as surface is present on metal and medium interface and
Oscillatory occurences.Owing to Light Energy can be constrained in much smaller than in the spatial dimension of optical wavelength by it
With the characteristic such as surface enhanced effect, the in vitro primitive such as surface can realize light and thing on nanoscale
The interaction of matter.At present, the in vitro primitive sensor such as typical surface can be divided into based on two
Tie up the conduction surfaces plasma primitive type sensor of membrane structure and based on zero-dimension nano granule
The local surface plasma resonance type sensor two kinds of structure.What the former utilized is prism-coupled
Principle, the transmission range causing light is shorter, and this sensor is difficult to integrated；The latter is
Based on the nano-particle principle of reflection to light, need to be confined to much smaller than optical wavelength electromagnetic field
Spatial dimension, this volume reflection resulting in light is the least, thus the sensitivity to sensor causes not
Good impact.
Summary of the invention
The present invention be directed to what above-mentioned problem was carried out, it is therefore intended that provide a kind of based on Polarium
Mach-Ze De micro-nano fiber interference-type the hydrogen gas sensor of nano wire, and the system of this sensor
Standby and using method.
The present invention provides a kind of interference-type hydrogen gas sensor, it is characterised in that including: bonder,
The light source received is launched the light come be divided into two-way and be transmitted respectively；First draws cone micro-nano light
Fibre, by evanescent wave coupled zone, one end is connected with bonder, receives and transmission of one line light；Palladium
Billon nano wire, one end is drawn with first the other end of cone micro-nano fiber to be connected, is drawn cone first
Surface plasma signal is produced under the excitation of the light that micro-nano fiber transmission comes；Second draws cone
Micro-nano fiber, one end is connected with the other end of Polarium nano wire, receives Polarium nanometer
Line conducts the surface plasma signal come and is transmitted；And the 3rd draw cone micro-nano fiber,
One end is connected with bonder, and the other end and second draws the other end of cone micro-nano fiber to contact, and uses
In transmitting another road light, and this Lu Guangyu second is made to draw the surface plasma of cone micro-nano fiber conduction
Body signal interferes, and makes second to draw cone micro-nano fiber output interference signal.
Interference-type hydrogen gas sensor involved in the present invention, it is also possible to have a feature in that it
In, first draws cone micro-nano fiber and second to draw the tip diameter boring micro-nano fiber identical, and
In 0.1～1 μ m, the 3rd draw cone micro-nano fiber tip diameter be 1～2 μm.
Interference-type hydrogen gas sensor involved in the present invention, it is also possible to have a feature in that it
In, a diameter of the 30 of Polarium nano wire～500nm, a length of 5～50 μm.
Interference-type hydrogen gas sensor involved in the present invention, it is also possible to have a feature in that it
In, bonder is 3 db couplers.
The present invention also provides for a kind of method preparing above-mentioned interference-type hydrogen gas sensor, its feature
It is, including following operation: prepare Polarium nano wire operation, palladium and gold mixing will be filled
The quartz boat of thing is placed on the high-temperature region in the middle of the quartz ampoule of tube type high-temperature furnace, is aoxidized by monocrystalline three
Two aluminium flakes are placed on the cooling area of quartz ampoule, are then sealed at quartz ampoule two ends, and logical argon is removed
Oxygen in quartz ampoule, argon stream is 200～900mL/min, then it is true to open vacuum pumping
Sky, making the pressure in quartz ampoule is 200～1000Pa, then heats up with the speed of 40 DEG C/min
To 1200～1300 DEG C, the steam of palladium and gold grows porpezite on Single crystal alpha-alumina sheet and closes
Nanowires of gold；Cone micro-nano fiber operation is drawn in preparation, uses drawing by high temperature farad to make tip diameter
Cone micro-nano fiber and second is drawn to draw cone micro-nano fiber in the first of 0.1～1 μm, and most advanced and sophisticated straight
Cone micro-nano fiber is drawn in the 3rd of 1～2 μm in footpath；Interference-type hydrogen gas sensor operation is installed, will
One bonder draws cone micro-nano fiber and the 3rd to draw cone micro-nano fiber to be connected, so respectively with first
After draw first cone micro-nano fiber, second draw cone micro-nano fiber, the 3rd draw cone micro-nano fiber and
Polarium nano wire is placed in sealing container, draws cone micro-nano fiber by first under the microscope
It is connected by one end of evanescent wave coupled zone with Polarium nano wire, draws cone micro-nano light by second
Fibre is connected with the other end of Polarium nano wire, makes second to draw cone micro-nano fiber and the 3rd to draw cone
The joining distal ends of micro-nano fiber touches, and i.e. can be made into interference-type hydrogen gas sensor.
Present invention also offers the using method of above-mentioned interference type hydrogen gas sensor, its feature exists
In, comprise the following steps: step one, interference-type hydrogen gas sensor be placed in sealing container,
Use bonder to receive light source launch the light come and be divided into two-way, use first to draw cone micro-nano fiber
A reception wherein road light also transmits to Polarium nano wire, uses second to draw cone micro-nano fiber to pass
The surface plasma signal of defeated Polarium nano wire, and draw cone micro-nano fiber to receive with the 3rd
And another road light emission interference transmitted, use the collection of illustrative plates of display display interference peaks, micro-
Under mirror, mobile second draws cone micro-nano fiber and the 3rd to draw cone micro-nano fiber, thus regulates interference peaks
Position and the degree of depth, make interference peaks in the centre position of collection of illustrative plates, and make the degree of depth of interference peaks reach
Greatly；Step 2, is passed through hydrogen to be detected in sealing container, uses Polarium nano wire
Absorb hydrogen molecule, then repeat step one, obtain being drawn the inclined of cone micro-nano fiber output by second
Interference peaks signal after shifting.
The using method of interference-type hydrogen gas sensor provided by the present invention, it is also possible to have so
Feature: wherein, light source is ASE wideband light source, and wave-length coverage is 1550～1650nm.
The effect of invention and effect
According to interference-type hydrogen gas sensor involved in the present invention, because bonder receives light source and sends out
The light penetrated also is divided into two-way, and a road light is only through drawing cone micro-nano fiber transmission, and another road light passes through
Polarium nano wire, inspires the surface plasma signal of Polarium nano wire, this table
Surface plasma signal, with only through drawing the light of cone micro-nano fiber transmission to interference, produces and interferes
Peak, and the refractive index that hydrogen causes Polarium nano wire changes, thus cause interference peaks
Skew, the offset information of interference peaks is carried out subsequent treatment and can draw density of hydrogen value, because of
This this interference-type hydrogen gas sensor volume is little, and highly sensitive, capacity of resisting disturbance is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of interference-type hydrogen gas sensor；With
Fig. 2 be concentration be the hydrogen interference peaks comparison diagram of 0 and 20%.
Detailed description of the invention
Below in conjunction with accompanying drawing, to interference-type hydrogen gas sensor provided by the present invention and preparation thereof and
Using method is elaborated.
<embodiment>
Fig. 1 is the structural representation of interference-type hydrogen gas sensor.
As it is shown in figure 1, interference-type hydrogen gas sensor 10 includes 3 db couplers 11, first
Draw cone micro-nano fiber 12, Polarium nano wire 13, second draw cone micro-nano fiber 14 and the
Three draw cone micro-nano fiber 15, and interference-type hydrogen gas sensor 10 is additionally provided with input 16 and defeated
Go out end 17.
Input 16 connects light source (not shown), receives light source (not shown) and sends out
The light penetrated also is transferred to 3 db couplers 11.3 db couplers 11 and input 16 phase
Even, receive the next light of input 16 transmission and split the light into two-way, 3 db couplers 11 points
The two-way light gone out is drawn cone micro-nano fiber 12 and the 3rd to draw cone micro-nano fiber 15 to receive by first respectively
And transmit.Polarium nano wire 13 one end draws cone micro-nano fiber 12 to be connected with first, another
End draws cone micro-nano fiber 14 to be connected with second, and first draws the light of cone micro-nano fiber 12 transmission to pass through
After Polarium nano wire 13, inspire the surface plasma letter of Polarium nano wire 13
Number, this surface plasma signal is drawn cone micro-nano fiber 14 to receive and transmit by second.3rd
The end and second drawing cone micro-nano fiber 15 draws cone micro-nano fiber 14 to contact, and makes second to draw cone
The surface plasma signal and the 3rd of micro-nano fiber 14 transmission draws cone micro-nano fiber 15 transmission
Another road light interferes.Second draws the end of cone micro-nano fiber 14 to be connected with outfan 17,
Interference signal is exported.
First draws cone micro-nano fiber 12 to draw the tip diameter boring micro-nano fiber 14 identical with second,
It it is 0.1～1 μm；3rd draw cone micro-nano fiber 15 tip diameter be 1～2 μm.
The preparation method of this interference-type hydrogen gas sensor 10 is as follows:
Operation one, prepares Polarium nano wire, by palladium and gold 1:(2 in mass ratio～3)
Ratio mixes, and is placed in quartz boat, and the quartz boat filling palladium and gold mixture is placed on pipe
High-temperature region in the middle of the quartz ampoule of formula high temperature furnace, is placed on quartz ampoule by Single crystal alpha-alumina sheet
Cooling area.Then being sealed at quartz ampoule two ends, logical argon removes the oxygen in quartz ampoule, argon
Entraining air stream is 200～900mL/min, then opens vacuum pump evacuation, makes the pressure in quartz ampoule
It is by force 200～1000Pa, is then warmed up to 1200～1300 DEG C with the speed of 40 DEG C/min.Palladium
Grow many with Polarium nano wire, aobvious on Single crystal alpha-alumina sheet with the steam of gold
Sampler is used to separate a Polarium nano wire, as Polarium nano wire under micro mirror
13, a diameter of 500nm of this Polarium nanometer 13, a length of 30 μm.
Operation two, preparation is drawn cone micro-nano fiber, is used drawing by high temperature farad to make tip diameter about
Be the first of 1 μm draw cone micro-nano fiber 12, second draw cone micro-nano fiber 14 and the 3rd draw cone
Micro-nano fiber 15.
Operation three, installs interference-type hydrogen gas sensor, by 3 db couplers 11 respectively
Draw cone micro-nano fiber 12 and the 3rd to draw cone micro-nano fiber 15 to be connected, then by first with first
Draw cone micro-nano fiber 12, second draw cone micro-nano fiber the 14, the 3rd draw cone micro-nano fiber 15 and
Polarium nano wire 13 is placed in sealing container, draws cone micro-nano by first under the microscope
Optical fiber 12 is connected with one end of Polarium nano wire 13, by second by evanescent wave coupled zone
Draw cone micro-nano fiber 14 to be connected with the other end of Polarium nano wire 13, make second to draw cone micro-
Nano fiber 14 and the 3rd draws the joining distal ends of cone micro-nano fiber 15 to touch, and i.e. can be made into interference-type hydrogen
Gas sensor 10.
Fig. 2 be concentration be the hydrogen interference peaks comparison diagram of 0 and 20%.
The using method of this interference-type hydrogen gas sensor 10 comprises the following steps:
Step one, is placed on interference-type hydrogen gas sensor 10 in sealing container, by input
16 are connected with the ASE wideband light source that wave-length coverage is 1550～1650nm.Use 3 decibels
Bonder 11 receives light source and launches the light come and be divided into two-way, uses first to draw cone micro-nano fiber
12 reception wherein road light also transmit to Polarium nano wire 13, inspire Polarium and receive
The surface plasma signal of rice noodle 13, uses second to draw cone micro-nano fiber 14 to transmit this surface
Plasma signal, and draw cone micro-nano fiber 15 another Lu Guangfa of receiving and transmitting with the 3rd
Rhizoma Belamcandae relates to.Outfan 17 is connected with display, uses the collection of illustrative plates of display display interference peaks,
As solid line in figure 2.Move second by three-D displacement operating platform under the microscope to draw
Cone micro-nano fiber 14 and the 3rd draws cone micro-nano fiber 15, thus regulates the position of interference peaks with deep
Degree, makes interference peaks in the centre position of collection of illustrative plates, and makes the degree of depth of interference peaks reach maximum.
Step 2, is passed through the hydrogen that concentration is 20% in sealing container, uses Polarium to receive
Rice noodle 13 absorbs hydrogen molecule, then repeats step one, obtains being drawn cone micro-nano fiber by second
Interference peaks signal after the skew of 14 outputs, as shown in dashed line in figure 2.
Step 3, is placed on Polarium nano wire 13 under the vacuum environment of more than 300 DEG C,
Its hydrogen absorbed is made all to discharge.Interference-type hydrogen gas sensor 10 is placed on sealing hold
In device, hydrogen to be detected is passed through in sealing container, uses Polarium nano wire 13 to inhale
Receive hydrogen molecule, then repeat step one, obtain being drawn cone micro-nano fiber 14 to export by second
The interference peaks signal of skew.
The hydrogen of variable concentrations can cause interference peaks that skew in various degree, and interference peaks occur
Side-play amount be directly proportional to the concentration of hydrogen.Therefore, interference peaks signal hydrogen to be measured caused
Compared with interference peaks signal in the case of obstructed hydrogen, calculate interference peaks side-play amount,
The interference peaks side-play amount that hydrogen according to concentration in Fig. 2 20% causes calculates hydrogen to be measured
Concentration.
The effect of embodiment and effect
According to the interference-type hydrogen gas sensor involved by the present embodiment, because bonder receives light source
Launch light and be divided into two-way, a road light only through drawing cone micro-nano fiber transmission, another Lu Guangtong
Cross Polarium nano wire, inspire the surface plasma signal of Polarium nano wire, should
Surface plasma signal, with only through drawing the light of cone micro-nano fiber transmission to interference, produces and interferes
Peak, and the refractive index that hydrogen causes Polarium nano wire changes, thus cause interference peaks
Skew, measure the interference peaks side-play amount that causes of hydrogen standard specimen that concentration is 20%, then measure and treat
Survey the interference peaks side-play amount that hydrogen causes, by the interference peaks of this interference peaks side-play amount Yu hydrogen standard specimen
Side-play amount is divided by, and can calculate the concentration of hydrogen to be measured, therefore this interference-type hydrogen gas sensor
Volume is little, and capacity of resisting disturbance is strong, highly sensitive, can be used for measuring concentration range 0.5～50%
Between the concentration of hydrogen.
Claims (4)
1. an interference-type hydrogen gas sensor, it is characterised in that including:
Bonder, launches, by the light source received, the light come and is divided into two-way light and is transmitted respectively；
First draws cone micro-nano fiber, and by evanescent wave coupled zone, one end is connected with described bonder,
Receive and light described in transmission of one line；
Polarium nano wire, one end draw with described first cone micro-nano fiber the other end be connected,
Draw described first and produce surface plasma under the excitation boring the light that micro-nano fiber transmission comes
Body signal；
Second draws cone micro-nano fiber, one end to be connected with the other end of described Polarium nano wire,
Receive the next described surface plasma signal of described Polarium nano wire conduction and pass
Defeated；And
3rd draws cone micro-nano fiber, and the described 3rd to draw the tip diameter of cone micro-nano fiber be 1～2
μm, one end is connected with described bonder, and the other end draws the another of cone micro-nano fiber with described second
One end contacts, and is used for transmitting light described in another road, and makes described in this Lu Guangyu second to draw cone micro-
The described surface plasma signal of nano fiber conduction interferes, and makes described second to draw cone micro-nano
Optical fiber output interference signal.
Interference-type hydrogen gas sensor the most according to claim 1, it is characterised in that:
Wherein, described first cone micro-nano fiber and described second is drawn to draw the most advanced and sophisticated straight of cone micro-nano fiber
Footpath is identical, and in 0.1～1 μ m.
Interference-type hydrogen gas sensor the most according to claim 1, it is characterised in that:
Wherein, a diameter of the 30～500nm of described Polarium nano wire, a length of 5～50
μm。
Interference-type hydrogen gas sensor the most according to claim 1, it is characterised in that:
Wherein, described bonder is 3 db couplers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373535.3A CN104132914B (en) | 2014-07-31 | Interference-type hydrogen gas sensor and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373535.3A CN104132914B (en) | 2014-07-31 | Interference-type hydrogen gas sensor and preparation and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132914A CN104132914A (en) | 2014-11-05 |
| CN104132914B true CN104132914B (en) | 2016-11-30 |
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