CN207379920U - A kind of light fibre humidity transducer based on zinc oxide nano rod - Google Patents
A kind of light fibre humidity transducer based on zinc oxide nano rod Download PDFInfo
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- CN207379920U CN207379920U CN201721361629.4U CN201721361629U CN207379920U CN 207379920 U CN207379920 U CN 207379920U CN 201721361629 U CN201721361629 U CN 201721361629U CN 207379920 U CN207379920 U CN 207379920U
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- zinc oxide
- oxide nano
- optical fiber
- nano rod
- humidity transducer
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Abstract
The utility model discloses a kind of light fibre humidity transducers based on zinc oxide nano rod, are related to light fibre humidity sensory field.Including light source, attenuator, optical fiber, sensor, spectrometer and computer.Using the hydrophily of zinc oxide nano rod, with reference to micro-nano fiber technology, ambient humidity detection is realized.The utility model realizes optical signal spectrum variation using single mode optical fiber, and high sensitivity, at low cost and compact-sized, stability is high, is conducive to the practical application of Humidity Detection technology.
Description
Technical field
The utility model is related to sensory field of optic fibre, and in particular to a kind of light fibre humidity sensing based on zinc oxide nano rod
Device.
Background technology
It is higher and higher to the technology requirement of humidity sensor in each application field with the realization of modernization.Humidity is
The percentage of contained moisture in air, for representing the wetness of air.Compared with traditional humidity sensor, light fibre humidity
Sensor has the influence of electromagnetism interference and nuclear radiation, and manufacture craft is simple, volume smaller；Service life is long, stability is good
The advantages that.And zinc oxide nano rod is a kind of photoelectric characteristic material of uniqueness, is prohibited with larger exciton bind energy and straight gap
Bandwidth.For optical fiber, zinc oxide is a kind of high index of refraction substance, can improve light in the zinc oxide nano rod of optical fiber surface
With the interaction of surrounding medium, so as to generate significant sensibility to external ambient humidity.
Waveguide of the optical fiber as transmission light has many advantages, such as light-weight, small, corrosion-resistant, anti-electromagnetic interference, with oxidation
The light fibre humidity transducer that zinc nanometer rods combine has many advantages, such as anti-interference, anticorrosive, high sensitivity, can realize accurate
Detection, therefore obtained researchers more and more concern and exploration.Micro-nano technology technology was increasingly studied in recent years
The concern of personnel, application range is also more and more extensive, and fibre optical sensor is in aerospace, construction of railways, marine industry, pipeline
The continuous progresses in fields such as safety, oil detection, bridge machinery.Therefore, zinc oxide nano rod is mutually tied with Fibre Optical Sensor
It shares and is of great significance in Humidity Detection to the practical development of light fibre humidity transducer.
The content of the invention
For the deficiency of the poor linearity of existing fiber humidity sensor, the purpose of this utility model is to provide one kind and is based on
The light fibre humidity transducer of zinc oxide nano rod.
The technical solution of the utility model is as follows：
The utility model proposes a kind of light fibre humidity transducers based on zinc oxide nano rod to include：Light source（1）, attenuation
Device（2）, optical fiber（3）, sensor（4）, spectrometer（5）, computer（6）.
Each device connection mode is as follows：Light source（1）The light of outgoing passes through optical fiber（3）With attenuator（2）It is connected, attenuation
Device（2）Output terminal pass through optical fiber（3）With sensor（4）Input terminal be connected, sensor（4）Output terminal pass through optical fiber
（3）With spectrometer（5）Input terminal be connected, spectrometer（5）Output terminal pass through optical fiber（3）With computer（6）It is connected.
The light fibre humidity transducer structure is as follows：
The light source（1）For wideband light source, wave-length coverage 400nm-800nm；
The attenuator（2）Attenuation section in 650nm-680nm；
The optical fiber（3）For multimode fibre, 50 μm of core diameter, 125 μm of cladding diameter；
The sensor（4）It is by corrosion optical fiber（4-1）, zinc oxide nano rod（4-2）It forms, zinc oxide nano rod
（4-2）It is grown in corrosion optical fiber（4-1）On；
The corrosion optical fiber（4-1）Corrode for the hydrofluoric acid through 25% concentration, corrode optical fiber（4-1）Core diameter is
50 μm, cladding diameter is 125 μm, a diameter of 28 μm of erodable section, length 3cm；
The zinc oxide nano rod（4-2）Used preparation method is hydro-thermal method, zinc oxide nano rod（4-2）Height
For 1 μm.
The beneficial effects of the utility model are specific as follows：
The utility model proposes a kind of light fibre humidity transducers based on zinc oxide nano rod；
Zinc oxide nano rod with micro-nano fiber technology is combined, realizes that fibre optical sensor is surveyed in the case of linearly spending preferably
The practical research of amount humidity is of great significance.
Description of the drawings
Fig. 1 is a kind of light fibre humidity transducer based on zinc oxide nano rod；
Fig. 2 is the sensor of sensor.
Specific embodiment
Specific embodiment one：Illustrate present embodiment with reference to Fig. 1, one kind described in present embodiment is based on oxidation
The light fibre humidity transducer of zinc nanometer rods, it includes light source（1）, attenuator（2）, optical fiber（3）, sensor（4）, spectrometer
（5）, computer（6）；
Light source（1）The broadband optical signal sent passes through attenuator（2）Into optical fiber（3）Input terminal, optical fiber（3）Output terminal
With sensor（4）Input terminal be connected, when extraneous ambient humidity changes, sensor（4）Zinc-oxide nano
Rod refractivity can change, and pass through spectrometer（5）Connect computer（6）, in computer（6）It is observed that optical signal is defeated
Go out the variation of light intensity.
Specific embodiment two：Sensor described in Fig. 2（4）Structure includes：Corrode optical fiber（4-1）, zinc oxide nano rod
（4-2）, zinc oxide nano rod（4-2）It is grown in corrosion optical fiber（4-1）On；
Corrode optical fiber described in present embodiment（4-1）Corrode for the hydrofluoric acid through 25% concentration, corrode optical fiber（4-1）
Core diameter is 50 μm, and cladding diameter is 125 μm, and erodable section core diameter is 28 μm, length 3cm；
Zinc oxide nano rod described in present embodiment（4-2）Used preparation method is hydro-thermal method, zinc oxide nano rod
（4-2）Height be 1 μm；
Sensor described in present embodiment（4）By being carried out respectively with input, output multimode fibre after hydrofluoric acid corrosion
Welding, by erodable section using hydro-thermal method in corrosion optical fiber（4-1）Upper growing zinc oxide nanorod（4-2）It realizes；
Operation principle：
Light fibre humidity transducer based on zinc oxide nano rod：
The course of work：As shown in Figure 1, light source（1）The broadband optical signal sent passes through attenuator（2）Into optical fiber（3）'s
Input terminal, optical fiber（3）Output terminal and sensor（4）Input terminal be connected, it is sensitive when extraneous ambient humidity changes
Device（4）Zinc oxide nano rod（4-2）The hydrone in environment is absorbed, the refractive index of optical fiber can change, output intensity
Also change therewith, pass through spectrometer（5）Connect computer（6）, in computer（6）It is observed that the variation of light intensity,
Relative humidity is less than 55%, and output intensity changes greatly, and the linearity is up to 96%.
Claims (7)
1. a kind of light fibre humidity transducer based on zinc oxide nano rod, which is characterized in that the light fibre humidity transducer includes：
Light source（1）, attenuator（2）, optical fiber（3）, sensor（4）, spectrometer（5）, computer（6）；
Each device connection mode is as follows：Light source（1）The light of outgoing passes through optical fiber（3）With attenuator（2）It is connected, attenuator
（2）Output terminal pass through optical fiber（3）With sensor（4）Input terminal be connected, sensor（4）Output terminal pass through optical fiber
（3）With spectrometer（5）Input terminal be connected, spectrometer（5）Output terminal pass through optical fiber（3）With computer（6）It is connected.
2. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 1, it is characterised in that：Described
Light source（1）For wideband light source, wave-length coverage 400nm-800nm.
3. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 1, it is characterised in that：Described
Attenuator（2）Attenuation section in 650nm-680nm.
4. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 1, it is characterised in that：Described
Optical fiber（3）For multimode fibre, 50 μm of core diameter, 125 μm of cladding diameter.
5. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 1, it is characterised in that：Described
Sensor（4）It is by corrosion optical fiber（4-1）, zinc oxide nano rod（4-2）It forms, zinc oxide nano rod（4-2）It is grown in corruption
Lose optical fiber（4-1）On.
6. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 5, it is characterised in that：The corruption
Lose optical fiber（4-1）Corrode for the hydrofluoric acid through 25% concentration, corrode optical fiber（4-1）Core diameter is 50 μm, and cladding diameter is
125 μm, a diameter of 28 μm of erodable section, length 3cm.
7. a kind of light fibre humidity transducer based on zinc oxide nano rod according to claim 1, it is characterised in that：The oxygen
Change zinc nanometer rods（4-2）Used preparation method is hydro-thermal method, zinc oxide nano rod（4-2）Height be 1 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721361629.4U CN207379920U (en) | 2017-10-23 | 2017-10-23 | A kind of light fibre humidity transducer based on zinc oxide nano rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721361629.4U CN207379920U (en) | 2017-10-23 | 2017-10-23 | A kind of light fibre humidity transducer based on zinc oxide nano rod |
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| CN201721361629.4U Expired - Fee Related CN207379920U (en) | 2017-10-23 | 2017-10-23 | A kind of light fibre humidity transducer based on zinc oxide nano rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709074A (en) * | 2019-01-21 | 2019-05-03 | 哈尔滨理工大学 | Optical fiber ammonia gas sensor and production method based on Ag doping zinc oxide nanometer flower |
| CN109724944A (en) * | 2019-01-02 | 2019-05-07 | 合肥京东方光电科技有限公司 | A kind of the water inlet detection method and mobile terminal of mobile terminal |
| CN109751515A (en) * | 2019-02-21 | 2019-05-14 | 安文霞 | It is a kind of for detecting the fiber mix waveguide of oil well Extraction rate |
-
2017
- 2017-10-23 CN CN201721361629.4U patent/CN207379920U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724944A (en) * | 2019-01-02 | 2019-05-07 | 合肥京东方光电科技有限公司 | A kind of the water inlet detection method and mobile terminal of mobile terminal |
| CN109724944B (en) * | 2019-01-02 | 2022-02-01 | 合肥京东方光电科技有限公司 | Water inflow detection method of mobile terminal and mobile terminal |
| CN109709074A (en) * | 2019-01-21 | 2019-05-03 | 哈尔滨理工大学 | Optical fiber ammonia gas sensor and production method based on Ag doping zinc oxide nanometer flower |
| CN109751515A (en) * | 2019-02-21 | 2019-05-14 | 安文霞 | It is a kind of for detecting the fiber mix waveguide of oil well Extraction rate |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20181023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |