CN107340242A - Optical-fiber type tunnel space environment soot gas monitor optical system - Google Patents
Optical-fiber type tunnel space environment soot gas monitor optical system Download PDFInfo
- Publication number
- CN107340242A CN107340242A CN201710599790.3A CN201710599790A CN107340242A CN 107340242 A CN107340242 A CN 107340242A CN 201710599790 A CN201710599790 A CN 201710599790A CN 107340242 A CN107340242 A CN 107340242A
- Authority
- CN
- China
- Prior art keywords
- optical
- light source
- optical fiber
- source
- reference light
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a kind of optical-fiber type tunnel space environment soot gas monitor optical system, including optical fiber source, photoelectric sensor, signal-data processing system, multicore Transmission Fibers optical cable, optical fiber source beam splitter, demarcation reference light source passage, some environmental monitoring light source passages；Demarcating reference light source passage and environmental monitoring light source passage includes optical fiber source emitting head, light beam convergent lens, fiber optic receiver, corner reflector；The transmitting light of optical fiber source is directed respectively into demarcation reference light source passage and some environmental monitoring light source passages through multicore Transmission Fibers optical cable transmission to optical fiber source beam splitter after beam splitting；Demarcation reference light source, environmental monitoring light source are exported by optical fiber source emitting head, light beam convergent lens is back to along input path reflection by corner reflector reflection, it is coupled to fiber optic receiver through convergence, exported again through multicore Transmission Fibers optical cable to photoelectric sensor and coupled signal-data processing system, to tunnel smog, the real-time monitoring and early warning of air quality.
Description
Technical field
The present invention relates to soot gas monitoring optical instrumentation field, more particularly to a kind of suitable railway, highway, river
The isometric tunnel space environment soot gas optical monitoring instrument light path system design in river seabed.
Background technology
As transportation business develops towards the quick direction of facility, high ferro, highway, sea floor of rivers tunnel are isometric
Type, super long type tunnel construction are increasing using scale, especially such as big southwestern road and rail tunnel, Subaqueous tunnel and coastal waters tunnel
Construction use, the trip to substance circulating and people brings great convenience, and people are enjoying safety and comfort, quick convenient
Traffic trip while, security precautions in big upgrade, special countries in the world experienced again and again big minor accident it
Afterwards, tunnel safety early warning, monitoring problem are mentioned unprecedented new high degree, and tunnel safety, which is taken precautions against, to be removed to Seismic Fracture, landslide, mud
The natural calamities such as rock glacier are carried out outside Monitoring and forecasting system in real-time, especially to some common great human accident such as fire, smog, have poison gas
The real-time monitoring and early warnings of carry out such as body leakage are more aobvious most important.
Conventional inside fire smoke detection alarm technique system, it is to be distributed some smoke detections sensing in tunnel top
Device, sensor detection signal is linked to tunnel operation control center monitoring room with electric wire and monitored, once tunnel produces smog hair
Light a fire calamity, when the smog being diffused into up to sensor reaches finite concentration value, sensor smoke signal promotes fire alarm system to carry out
Alarm.Because such detector sensitivity is low, the reaction time is slow, and the limited amount arranged in tunnel space, except to some weights
Conflagration is alarmed, it is impossible to early warning is carried out before can not occurring in the smokescope relatively low fire starting stage in fire,
Early warning can not be monitored to some colourless smokeless but very big toxic chemical gas, safe early warning effect is unsatisfactory, no
It can meet to carry out real-time monitoring and early warning demand to tunnel safety.
Therefore need badly and provide a kind of new tunnel safety monitoring prior-warning device to solve the above problems.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of optical-fiber type tunnel space environment soot gas monitor light
System, the progress of the air qualities such as soot gas content, hydrocarbon concentration in tunnel space environment can be monitored in real time,
Early warning.
In order to solve the above technical problems, one aspect of the present invention is：A kind of optical-fiber type tunnel space is provided
Environment soot gas monitor optical system, including optical fiber source, photoelectric sensor, signal installed in tunnel outer Control Room
Data handling system, the optical fiber source beam splitter in tunnel, demarcation reference light source passage, some environmental monitoring light sources lead to
The multicore Transmission Fibers optical cable in road and connection tunnel internal and outside Control Room；
Demarcation reference light source passage and environmental monitoring light source passage receive by optics-and emitting head, corner reflector form, light
Learning reception-emitting head includes optical fiber source emitting head, light beam convergent lens, fiber optic receiver；
The transmitting light of optical fiber source is by multicore Transmission Fibers optical cable transmission to optical fiber source beam splitter, by optical fiber source point
Demarcation reference light source passage and some environmental monitoring light source passages are introduced after beam device beam splitting respectively；Demarcate reference light source, environment prison
Light-metering source is exported by optical fiber source emitting head respectively, and being back to light beam along input path after being reflected by corner reflector assembles thoroughly
Mirror, it is coupled to fiber optic receiver through the convergence of light beam convergent lens, then exports to photoelectric sensor and turn through multicore Transmission Fibers optical cable
Photosignal is changed to, the photosignal is transmitted to signal-data processing system.
In a preferred embodiment of the present invention, demarcation reference light source passage also includes demarcation closing space pipe network, its
Including some hollow tubes mutually concatenated, demarcation reference light emitting head is respectively placed in the both ends of hollow tube with corner reflector.Demarcation
It is to demarcate optical fiber source spectral power value with closing space pipe network, and the reference background light of monitored environment is empty with closing cleaning
Between.
Further, demarcation is fixed on above the straight smooth section side wall in tunnel with closing space piping network installation, with environment
The Transmission Fibers optical cable for monitoring light source passage is parallel.
In a preferred embodiment of the present invention, optical fiber source beam splitter is supervised with demarcation reference light source passage and some environment
The optical fiber source emitting head of light-metering source channels is connected by Transmission Fibers respectively.
In a preferred embodiment of the present invention, optical fiber source emitting head is the optical fiber source with tail optical fiber and optics collimator
Emitting head, tail optical fiber are connected by a connector with Transmission Fibers.
In a preferred embodiment of the present invention, one end difference of every Transmission Fibers optical cable of multicore Transmission Fibers optical cable
It is connected with the fiber optic receiver of demarcation reference light source passage, some environmental monitoring light source passages, the other end is demarcated with corresponding respectively
Reference light source passage, the photoelectric sensor of some environmental monitoring light source passages are connected.Demarcate reference light source passage and each environment
Monitoring light source passage has respective Transmission Fibers.
Further, according to environmental demand in tunnel, optical fiber source beam splitter is two-way or multichannel beam splitting, per road light beam point
Light ratio is identical or different.
Further, photoelectric sensor includes photodetector, spectrometer.
In a preferred embodiment of the present invention, for being set up an office more than the tunnel that 20km grows segmentation by way of arrangement,
Concatenation and connects some optical-fiber type tunnel space environment soot gas monitor optical systems tunnel is monitored.
The beneficial effects of the invention are as follows：
(1) present invention uses full-optical fiber optical system design, and luminous energy, signal transmission use optical fiber cable technology, will supervised
Light-metering source is launched to be linked with receiving by the signal in optical fiber cable progress tunnel and outside Control Room, due to optical fiber cable transmission light
Energy loss of signal is small, strong antijamming capability, long transmission distance, is several kms for length, the tunnel in more than ten kms, monitoring system
System can realize non-relay station operation completely, and for tens kms, hundreds of km Super Long Tunnels, monitoring signals can both be led to
Cross optical fiber cable and be transferred to tunneling termination ground, Centralized Monitoring is unified by ground central control room, can also be reserved as built in tunnel
Road between Control Room decentralized supervisory control, so as to realize comprehensive 24 hours real-time monitoring and early warnings in full tunnel；
(2) present invention monitoring light beam passes through tunnel space, is inhaled by soot gas, hydrocarbon in tunnel space environment etc.
Receive, compose absorption techniques method with optical light power, detect light beam spectral power numerical value change amount in real time, this data is divided
Analysis is handled, so as to obtain soot gas or the component content of poisonous and harmful compound, concentration distribution information in tunnel space environment,
Foundation is provided for tunnel safety forecasting and warning, completes tunnel space environment soot gas composition, the data of content concn distribution show
Show, information exports and early-warning and predicting；
(3) the large-scale charging equipment such as optical fiber source, opto-electronic receiver, data processing is arranged on from tunnel face farther out by the present invention
Ground monitoring room harbor, avoid monitoring instrument equipment etc. from taking the valuable space in tunnel, while also give instrumentation prison
Control, maintaining etc. bring great convenience, and because power cable is not introduced tunnel by optic-fiber monitoring system, avoid monitor
Device equipment increases secondary unsafe factor to tunnel；
(4) optical-fiber type optical instrumentation is simple in construction, and expense is low, service life length, securely and reliably, working service side
Just.
Brief description of the drawings
Fig. 1 is the structure that optical-fiber type tunnel space environment soot gas monitor optical system of the present invention unifies preferred embodiment
Schematic diagram；
The mark of each part is as follows in accompanying drawing：1st, optical fiber source modulation drive module, 2, optical fiber source, 3, multicore transmission light
Fine optical cable, 4, optical fiber source beam splitter, 5, Transmission Fibers, 6, monitoring light emitting head, 7, monitored environment space, 8, corner reflection
Device, 9, light beam convergent lens, 10, monitoring light fiber optic receiver, 11, photoelectric sensor, 12, demarcate reference light emitting head, 13, mark
Surely closing space pipe network is used, 14, demarcation reference light fiber optic receiver, 15, signal-data processing system, 16, demarcation reference light source
Passage, 17, environmental monitoring light source passage.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention includes：
A kind of optical-fiber type tunnel space environment soot gas monitor optical system, including in tunnel outer tunnel
Entreat Control Room in optical fiber source modulation drive module 1, optical fiber source 2, photoelectric sensor 11, signal-data processing system 15,
Optical fiber source beam splitter 4 in tunnel, demarcation reference light source passage 16, some environmental monitoring light source passages 17 and
The multicore Transmission Fibers optical cable 3 of tunnel internal and outside Control Room is connected, demarcation reference light source passage 16 is used for the optical-fiber type
The calibration of tunnel space environment soot gas monitor, for revising for optical fiber source 2 and monitored environmental background light；Environment is supervised
Light-metering source channels 17 are then used for the monitoring of tunnel space environment soot gas, compound concentration.Demarcate reference light source passage 16 with
Environmental monitoring light source passage 17 receives by optics-and emitting head, corner reflector 8 form, and optics reception-emitting head includes optical fiber light
Source emitting head, light beam convergent lens 9, fiber optic receiver.Demarcation reference light source passage 16 also includes demarcation closing space pipe network
13, demarcation closing space pipe network 13 is the sky for the surrounding air cleaning that optical fiber source 2 and monitoring of environmental background calibration are closed
Between pipe network, it includes some hollow tubes mutually concatenated, and demarcation reference light emitting head 12 is respectively placed in hollow tube with corner reflector 8
Both ends.
Optical fiber source modulation drive module 1 is that optical fiber source 2 provides driven by power, and optical fiber source 2 is the tunnel of optical fiber output
Road monitoring light source.Photoelectric sensor 11 can use photodetector or spectrometer, for the monitoring light of reception, demarcation to be referred to
Light is changed into electric signal.The function of signal-data processing system 15 includes data acquisition storage, calculating processing, display output etc..
Multicore Transmission Fibers optical cable 3 is using the outdoor armouring multifiber cable by more Transmission Fibers combination formings, multicore Transmission Fibers light
Optical fiber of the one end of Transmission Fibers in cable 3 respectively with demarcation reference light source passage 16 and some environmental monitoring light source passages 17 connects
Head is received to be connected, the other end respectively with corresponding demarcation reference light source passage 16, the photoelectric transfer of some environmental monitoring light source passages 17
Sensor 11 is connected.Demarcation reference light source passage 16 and each environmental monitoring light source passage 17 have respective Transmission Fibers.Optical fiber
Light source beam splitter 4 is fiber optic components, and the ratio beam splitting of the light beam that optical fiber source 2 is exported on demand is that multi-beam is defeated
Go out, according to environmental demand in tunnel, optical fiber source beam splitter 4 is two-way or multichannel beam splitting, it is identical per road light beam light splitting ratio or
It is different.The optical fiber source of optical fiber source beam splitter 4 and demarcation reference light source passage 16, some environmental monitoring light source passages 17 is launched
Head is connected by Transmission Fibers 5 respectively, and Transmission Fibers 5 use the ordinary optic fibre with tail optical fiber.Optical fiber source emitting head is band tail optical fiber
With the optical fiber source emitting head of optics collimator, including monitoring light emitting head 6, demarcation reference light emitting head 12, tail optical fiber passes through one
Connector is connected with Transmission Fibers 5.Corner reflector 8 can reflect incident light and backtracking, and light beam convergent lens 9, which will reflect back into, to be come
Monitoring light or demarcation reference light converged, fiber optic receiver be used for receive convergence monitoring light or demarcation reference light, including
Monitor light fiber optic receiver 10, demarcation reference light fiber optic receiver 14.
Optical fiber source is transferred to from the monitoring light that optical fiber source 2 is sent through an optical fiber in multicore Transmission Fibers optical cable 3
Beam splitter 4, environmental monitoring light and demarcation reference light are divided into by optical fiber source beam splitter 4, environmental monitoring light passes through Transmission Fibers 5
Exported by monitoring light emitting head 6, pass through monitored section environment space 7, reached corner reflector 8, be then reflected back to light beam
Convergent lens 9, monitoring light are coupled in monitoring light fiber optic receiver 10 through the convergence of light beam convergent lens 9, then transmitted by multicore
An optical fiber in optical fiber cable 3 is transferred to the photoelectric sensor 11 in Control Room, produces monitoring photoelectricity (spectrum) signal, output
Analyzed and processed to signal-data processing system 15.The demarcation reference light separated from optical fiber source beam splitter 4 passes through transmission light
Fibre 5 reaches demarcation reference light emitting head 12 and exported, and reference light passes through the closing pipe network space 13 of the demarcation of closing cleaning, reaches
Corner reflector 8, light beam convergent lens 9 is then reflected back to, demarcation reference light fiber optic receiver 14 is coupled in convergence, by more
An optical fiber in core Transmission Fibers optical cable 3 is transferred in Control Room on photoelectric sensor 11, is produced and is believed with reference to photoelectricity (spectrum)
Number export and to carry out Data Analysis Services to same signal-data processing system 15, supervised because monitoring light source comes and goes to pass through twice
Section space environment 7 is surveyed, spectral power is absorbed by the soot gas in this section space environment, hydrocarbon etc., in real time inspection
The changing value of spectral power before and after light source absorbs is surveyed, compared, soot gas in monitoring section space environment are obtained through data processing
Content, the detection data of hydrocarbon concentration, by the display and output of data message after processing, complete tunnel monitoring section
Space environment monitor early-warning and predicting.For being then segmented the arrangement that sets up an office more than 20km long tunnels, concatenation or and some monitor light are connect
System is monitored.
In one embodiment, by taking 2600 meters of vcehicular tunnel gas fume Design of Monitor as an example, Control Room is located at ground
At 60 meters of identity distance tunnel portal.Consider the less feature of vcehicular tunnel bending radius, optical design is with every 200 meters or so long tunnels
Road is a monitoring section, sets a monitoring basic point, need to set 13 basic points altogether, from 24 core open air armouring Transmission Fibers optical cables,
An optical fiber transmits for optical fiber source in optical cable, and its one end connection optical fiber source 2, the other end connects with optical fiber source beam splitter 4
Connect, the signal that 16 optical fiber in remaining 23 optical fiber are used for environmental monitoring light transmits, and 7 optical fiber are used to back up in addition.Multicore
Transmission Fibers optical cable 3 is conveyed into tunnel by light source is monitored, while the flashlight that each receiving point in each section is received passes through optical fiber
Optical cable transmission goes back to ground monitoring room, shows and exports after opto-electronic conversion and data processing.
Optical fiber source emitting head, light beam convergent lens 9 and fiber optic receiver are become one composition one in the present embodiment
Each and every one independent optics reception-emitting head, at interval of 200 meters or so one, it is fixed on above tunnel sidewalls, and here
Relative position installs corner reflector 8 one by one, and the optical fiber source 2 in Control Room is transferred to by multicore Transmission Fibers optical cable 3
In optical fiber source beam splitter 4 in tunnel, the light beam light splitting ratio of optical fiber source beam splitter 4 is 1：16, light source is by optical fiber source
Beam splitter 4 is divided into a branch of demarcation reference light and 15 beam environmental monitoring light, and demarcation reference light is guided respectively with environmental monitoring light
Enter respective emitting head and form demarcation reference light source and environmental monitoring light source.Environmental monitoring light by respective Transmission Fibers 5 by
Monitoring light emitting head 6 exports, and passes through the monitored space environment 7 of different sections of highway, reaches corner reflector 8, then reflects back into each
From light beam convergent lens 9 on, be coupled to monitoring light fiber optic receiver 10 through the convergence of light beam convergent lens 9, then pass through transmission light
Respective optical fiber is transferred on each photodetector (spectrometer) 11 in cable 3, is produced monitoring photoelectricity (spectrum) signal, is exported to letter
Number processing system 18 carries out Data Analysis Services.Demarcation reference light source passage 16 is then the hollow of several internal diameter 80mm of concatenation
Pipe, be fixed on it is parallel with monitoring optical cable above the straight smooth section side wall in tunnel, by demarcation reference light emitting head and angle
Reflector is respectively placed in pipe two, adjusts light source and prism angle direction and fixation, as optical fiber source and monitoring of environmental
The dimensional network 13 of background calibration closing cleaning, the demarcation reference light separated from optical fiber source beam splitter 4 pass through Transmission Fibers 3
Demarcation reference light emitting head 12 is reached to export, demarcation reference light passes through the dimensional network 13 of closing cleaning, reaches corner reflector 8,
Light beam convergent lens 9 is reflected back to, is coupled to through convergence in demarcation reference light fiber optic receiver 14, passes through multicore Transmission Fibers
Optical cable 3 is transferred on photodetector (spectrometer) 11, and generation refers to photoelectricity (spectrum) signal, exports to same signal data
Processing system 18 carries out Data Analysis Services, and system completes demarcation optical signal and monitoring optical signal data analyzing and processing, so as to obtain
Soot gas composition, the Real-time Monitoring Data of content concn distribution in the space environment of point being monitored are obtained, completes data letter
Display and output, realize the monitoring and warning forecast of tunnel space environment.
The present invention uses full-optical fiber optical system design, and luminous energy, signal transmission use optical fiber cable technology, will monitor light
Source is launched is conducted into tunnel with receiving by long line optical fiber cable, anti-interference because optical fiber cable transmission luminous energy loss of signal is small
Ability is strong, long transmission distance, is several kms for length, the tunnel in more than ten kms, and monitoring system can be realized without in completely
Run after station, and for tens kms, hundreds of km Super Long Tunnels, both monitoring signals can be transferred to ground by optical fiber cable
Face, Centralized Monitoring is unified by tunneled central Control Room, can also be reserved by attached in the middle Control Room decentralized supervisory control in tunnel, from
And realize the detection monitoring in real time in comprehensive 24 hours in full tunnel；Optic-fiber monitoring system is with optical light power spectrum absorption techniques side
Method, light beam spectral power numerical value change amount is detected in real time, so as to obtain soot gas or poisonous and harmfulization in tunnel space environment
The information such as compound content, concentration, foundation is provided for tunnel safety early-warning and predicting, complete tunnel space environment soot gas composition,
The data of content concn distribution are shown, information exports and early-warning and predicting.
In addition, the present invention by the large-scale charging equipment such as optical fiber source, opto-electronic receiver, data processing be arranged on from tunnel face compared with
Remote ground monitoring Central Security place, monitoring instrument equipment etc. can be avoided to take the valuable space in tunnel, while also give instrument
Operation monitoring, maintaining etc. bring great convenience, and because power cable is not introduced tunnel by optic-fiber monitoring system, avoid
Monitoring instrument equipment increases secondary unsafe factor to tunnel；And optical-fiber type optical instrumentation is simple in construction, expense is low, uses
Long lifespan, securely and reliably, working service are convenient.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of optical-fiber type tunnel space environment soot gas monitor optical system, it is characterised in that including installed in tunnel
The optical fiber source of outside Control Room, photoelectric sensor, signal-data processing system, the optical fiber source beam splitting in tunnel
The multicore biography of device, demarcation reference light source passage, some environmental monitoring light source passages and connection tunnel internal and outside Control Room
Defeated optical fiber cable；
Demarcation reference light source passage and environmental monitoring light source passage receive by optics-and emitting head, corner reflector form, and optics connects
T-R, which penetrates head, includes optical fiber source emitting head, light beam convergent lens, fiber optic receiver；
The transmitting light of optical fiber source is by multicore Transmission Fibers optical cable transmission to optical fiber source beam splitter, by optical fiber source beam splitter
Demarcation reference light source passage and some environmental monitoring light source passages are introduced after beam splitting respectively；Demarcate reference light source, environmental monitoring light
Source is exported by optical fiber source emitting head respectively, and light beam convergent lens is back to along input path after being reflected by corner reflector, warp
Fiber optic receiver is coupled in the convergence of light beam convergent lens, then it is light to be exported through multicore Transmission Fibers optical cable to conversion of photoelectric sensor
Electric signal, the photosignal are transmitted to signal-data processing system.
2. optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1, it is characterised in that
To demarcate reference light source passage also include the dimensional network that the surrounding air that demarcation is closed cleans, and it includes some mutually concatenating
Hollow tube, demarcation reference light source emitting head are respectively placed in the both ends of hollow tube with corner reflector.
3. optical-fiber type tunnel space environment soot gas monitor optical system according to claim 2, it is characterised in that
Demarcation is fixed on above the straight smooth section side wall in tunnel with closing space piping network installation.
4. optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1, it is characterised in that
The optical fiber source emitting head of optical fiber source beam splitter and demarcation reference light source passage and some environmental monitoring light source passages leads to respectively
Transmission Fibers are crossed to be connected.
5. optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1, it is characterised in that
One end of every Transmission Fibers of multicore Transmission Fibers optical cable leads to demarcation reference light source passage, some environmental monitoring light sources respectively
The fiber optic receiver in road is connected, the other end respectively with corresponding demarcation reference light source passage, the light of some environmental monitoring light source passages
Electric transducer is connected.
6. the optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1 or 4, its feature exist
In optical fiber source beam splitter is two-way or multichannel beam splitting, and it is identical or different to be divided ratio per road light beam.
7. the optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1 or 4, its feature exist
In optical fiber source emitting head is the optical fiber source emitting head with tail optical fiber and optics collimator.
8. optical-fiber type tunnel space environment soot gas monitor optical system, its feature exist according to claim 1 or 5
In photoelectric sensor includes photodetector, spectrometer.
9. optical-fiber type tunnel space environment soot gas monitor optical system according to claim 1, it is characterised in that
For being set up an office more than the tunnel that 20km grows segmentation by way of arrangement, concatenation or and some optical-fiber type tunnel space rings are connect
Border soot gas monitor optical system is monitored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599790.3A CN107340242B (en) | 2017-07-21 | 2017-07-21 | Optical fiber type tunnel space environment oil fume gas monitor optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599790.3A CN107340242B (en) | 2017-07-21 | 2017-07-21 | Optical fiber type tunnel space environment oil fume gas monitor optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107340242A true CN107340242A (en) | 2017-11-10 |
| CN107340242B CN107340242B (en) | 2020-04-03 |
Family
ID=60216400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710599790.3A Active CN107340242B (en) | 2017-07-21 | 2017-07-21 | Optical fiber type tunnel space environment oil fume gas monitor optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107340242B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068532A (en) * | 2019-04-18 | 2019-07-30 | 深圳晶点光科有限公司 | Built-in light splitting optical fiber does the point-type optical fiber smoke fire detector of signal designation |
| CN113758920A (en) * | 2021-07-20 | 2021-12-07 | 北京新叶科技有限公司 | Ammonia escape monitoring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017804A (en) * | 2012-12-26 | 2013-04-03 | 中国科学院上海光学精密机械研究所 | High-time-synchronization multichannel fiber bragg grating sensing system |
| CN103207162A (en) * | 2013-03-19 | 2013-07-17 | 石家庄供电公司 | Online concentration monitoring system for gases in cable tunnel based on optical fiber sensing |
| CN103852111A (en) * | 2014-03-03 | 2014-06-11 | 天津大学 | Intelligent tunnel monitoring and alarm system based on optical fiber sensing network |
| CN203720081U (en) * | 2013-12-27 | 2014-07-16 | 北京航星网讯技术股份有限公司 | Gas parameter multipoint sensing and measurement type light path structure for laser absorption spectroscopy |
| CN105089701A (en) * | 2015-08-10 | 2015-11-25 | 山西省交通科学研究院 | Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing |
| CN105158206A (en) * | 2015-10-17 | 2015-12-16 | 中国科学院合肥物质科学研究院 | Laser detection system for oxygen concentration in tail gas of vehicle-mounted type motor vehicle |
-
2017
- 2017-07-21 CN CN201710599790.3A patent/CN107340242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017804A (en) * | 2012-12-26 | 2013-04-03 | 中国科学院上海光学精密机械研究所 | High-time-synchronization multichannel fiber bragg grating sensing system |
| CN103207162A (en) * | 2013-03-19 | 2013-07-17 | 石家庄供电公司 | Online concentration monitoring system for gases in cable tunnel based on optical fiber sensing |
| CN203720081U (en) * | 2013-12-27 | 2014-07-16 | 北京航星网讯技术股份有限公司 | Gas parameter multipoint sensing and measurement type light path structure for laser absorption spectroscopy |
| CN103852111A (en) * | 2014-03-03 | 2014-06-11 | 天津大学 | Intelligent tunnel monitoring and alarm system based on optical fiber sensing network |
| CN105089701A (en) * | 2015-08-10 | 2015-11-25 | 山西省交通科学研究院 | Operation tunnel health monitoring and early warning system and method based on distributed optical fiber sensing |
| CN105158206A (en) * | 2015-10-17 | 2015-12-16 | 中国科学院合肥物质科学研究院 | Laser detection system for oxygen concentration in tail gas of vehicle-mounted type motor vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068532A (en) * | 2019-04-18 | 2019-07-30 | 深圳晶点光科有限公司 | Built-in light splitting optical fiber does the point-type optical fiber smoke fire detector of signal designation |
| CN110068532B (en) * | 2019-04-18 | 2024-03-05 | 浙江东方职业技术学院 | Point-type optical fiber smoke-sensing fire detector with built-in light splitting optical fiber for signal indication |
| CN113758920A (en) * | 2021-07-20 | 2021-12-07 | 北京新叶科技有限公司 | Ammonia escape monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107340242B (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100520360C (en) | Opening natural gas leaking multi-channel monitoring method and light path structure | |
| Crisp | Introduction to fiber optics | |
| CN101619807A (en) | System and method for monitoring airborne natural gas line leakage | |
| US20090154870A1 (en) | Optical Fiber Sensor Connected To Optical Fiber Communication Line | |
| CN101042340A (en) | Detection method for Optical-fiber transmitting infrared absorption type methane gas | |
| CN101858488A (en) | Oil gas pipeline monitoring method and system | |
| GB1576797A (en) | Apparatus for measuring attenuation characteristics and localizing faults in optical fibres | |
| CN107340242A (en) | Optical-fiber type tunnel space environment soot gas monitor optical system | |
| CN102914289A (en) | Brillouin distributed optical fiber sensing based structural deflection and subsidence monitoring system | |
| Tricker | Optoelectronics and fiber optic technology | |
| CN101750634A (en) | Optical detection system | |
| CN106323910A (en) | Urban comprehensive pipe gallery open type multi-component gas on-line monitoring early warning device | |
| US4817202A (en) | Process and apparatus for control and monitoring of installation by transmission of information and of commands by optical means | |
| CN105577268A (en) | Optical network equipment, optical module and optical link detection method | |
| CN104614334B (en) | Distribution type fiber-optic gas sensor | |
| CN101956567A (en) | Intrinsic safety all-fiber underground monitoring system | |
| CN104359857B (en) | A kind of can time-sharing multiplex TDLAS gas controlling devices | |
| CN213274636U (en) | Distributed optical fiber heat supply pipeline leakage detection early warning system | |
| CN104456091B (en) | Fiber-optic interferometer CO2 pipe leak detection device based on 3*3 couplers | |
| CN109119196A (en) | A kind of optoelectronic composite cable and coiled tubing logging system | |
| Gonzalez-Herraez et al. | Distributed acoustic sensing for seismic monitoring | |
| CN106327757A (en) | Fiber intrusion detection system based on bending loss and time division multiplexing principle | |
| US4866265A (en) | Optical moisture sensor using an expanded optical beam | |
| CN201322807Y (en) | Optical passive detection system | |
| CN110470606A (en) | Methane concentration detector and detection method applied to paddy field solid space |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20171110 Assignee: Anhui Xingtai Financial Leasing Co.,Ltd. Assignor: ANHUI QINGYU PHOTOELECTRIC TECHNOLOGY CO.,LTD. Contract record no.: X2023980034904 Denomination of invention: Optical System of Fiber Optic Tunnel Space Environment Oil Smoke Gas Monitor Granted publication date: 20200403 License type: Exclusive License Record date: 20230423 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Optical System of Fiber Optic Tunnel Space Environment Oil Smoke Gas Monitor Effective date of registration: 20230425 Granted publication date: 20200403 Pledgee: Anhui Xingtai Financial Leasing Co.,Ltd. Pledgor: ANHUI QINGYU PHOTOELECTRIC TECHNOLOGY CO.,LTD. Registration number: Y2023980039098 |