CN208296900U - Optical fiber point type temperature disturbance sensing device and system - Google Patents
Optical fiber point type temperature disturbance sensing device and system Download PDFInfo
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- CN208296900U CN208296900U CN201820973497.9U CN201820973497U CN208296900U CN 208296900 U CN208296900 U CN 208296900U CN 201820973497 U CN201820973497 U CN 201820973497U CN 208296900 U CN208296900 U CN 208296900U
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Abstract
The utility model provides a kind of optical fiber point type temperature disturbance sensing device and system, it is related to sensing equipment technical field, the optical fiber point type temperature disturbance sensing device includes: shell, incident flange, outgoing flange, fixing buckle and sensing element, incident flange and the setting of outgoing flange are on the shell, fixing buckle is arranged inside the shell, sensing element is fixedly installed on fixing buckle, and incident flange, sensing element and outgoing flange pass through measurement optical fiber concatenation.The device can alleviate existing optical fiber temperature-measurement vibration measuring system and there is a problem of that user experience is not high for the measurement of specified point, can be improved user experience.Measurement accuracy for measurement point is helped to improve simultaneously, additionally has the advantages that install and use that easy, structure is simple, is convenient for carrying test, and suitable for multiclass sensor-based system.
Description
Technical field
The utility model relates to sensing equipment technical fields, more particularly, to a kind of optical fiber point type temperature disturbance sensing device
And system.
Background technique
Currently, common Fiber Optic Pyrometer scheme includes the line temperature-measuring system of distributed fibers based on scattering, such as base
In the line temperature-measuring system of distributed fibers of Raman scattering, point type optical fiber temperature measurement system based on fiber grating etc..Common optical fiber
Vibration measuring technical solution includes the line distribution type fiber-optic vibration measuring system based on Rayleigh scattering and the point type optical fiber based on fiber grating
Vibration measuring system etc..
However the distributed optical fiber temperature measurement vibration measuring system based on scattering is inaccurate to the measurement of specified point, vulnerable to system
The influence of noise, environmental factor.Point type thermometric vibration measuring system based on fiber grating is higher to other non-sensing amount sensitivity, this
Outside, time-consuming and laborious if to realize that different scrnario testing demands needs to carry out test macro whole replacements.
Generally speaking, the effect of single means detection is undesirable, is not able to satisfy the measurement demand of user, leads to user's body
Degree of testing is poor.
To sum up, existing optical fiber temperature-measurement vibration measuring system has that user experience is not high for the measurement of specified point.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of optical fiber point type temperature disturbance sensing device and system,
There is a problem of that user experience is not high to alleviate existing optical fiber temperature-measurement vibration measuring system for the measurement of specified point.
In a first aspect, the utility model embodiment provides a kind of optical fiber point type temperature disturbance sensing device, comprising: outer
Shell, incident flange, outgoing flange, fixing buckle and sensing element, the incidence flange and the outgoing flange are arranged described
On shell, the fixing buckle is arranged in the shell, and the sensing element is fixedly installed on the fixing buckle, the incidence
Flange, sensing element and the outgoing flange pass through measurement optical fiber concatenation.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the sensing element is any one of single mode optical fiber, fluorescence optical fiber, fiber grating.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, the fixing buckle is made of elastoplastic.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the sensing element and the fixing buckle are multiple, and the sensing element is identical as the quantity of the fixing buckle.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein multiple fixing buckles are arranged at intervals on the shell.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, the fixing buckle includes the first fixed plate and the second fixed plate, and first fixed plate and second fixed plate are set relatively
It sets, the sensing element is arranged between first fixed plate and second fixed plate, first fixed plate and described
The space for accommodating the sensing element is formed between second fixed plate.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, the measurement optical fiber includes single mode optical fiber or multimode fibre.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, the shell is spherical structure or cylindrical structure.
Second aspect, the utility model embodiment also provide a kind of optical fiber point type temperature disturbance sensor-based system, comprising: optical fiber
Sensing equipment and the optical fiber point type temperature disturbance as described in any one of first aspect and its possible embodiment sense dress
It sets, the fiber optic sensing devices are connected with the optical fiber point type temperature disturbance sensing device.
In conjunction with second aspect, the utility model embodiment provides the first possible embodiment of second aspect,
In, the fiber optic sensing devices include optical fiber distributed temperature sensing host, optical fiber distribution type vibration sensing host, fiber grating
Any one of (FBG) demodulator or fluorescence optical fiber temperature demodulation instrument.
The utility model embodiment bring it is following the utility model has the advantages that
The utility model embodiment provides a kind of optical fiber point type temperature disturbance sensing device and system, wherein the optical fiber
Point type temperature disturbance sensing device includes: shell, incident flange, outgoing flange, fixing buckle and sensing element, incident flange and
It is emitted flange setting on the shell, fixing buckle is arranged inside the shell, and sensing element is fixedly installed on fixing buckle, incident flange,
Sensing element and outgoing flange pass through measurement optical fiber concatenation.Therefore, technical solution provided by the embodiment of the utility model, by setting
Incident flange, sensing element, the measurement optical fiber of outgoing flange and setting inside the shell on the shell is set, is alleviated existing
Optical fiber temperature-measurement vibration measuring system has that user experience is not high for the measurement of specified point, improves the Experience Degree of user, together
When help to improve measurement accuracy for measurement point.The device also has the advantages that install and use that easy, structure is simple, convenient
Test is carried, and the device can carry out the multiplexing of multiclass sensing using same structure, it can be with when being used for different sensor-based systems
Realization is switched fast, and when more emat sensor only needs to change the device, is not necessarily to welding, i.e., will by the demounting flange at present apparatus both ends
The present apparatus accesses new sensing system.In addition, shell can play protection internal sensor element and measure optical fiber
Effect, while the optical fiber point type temperature disturbance sensing device passes through incident flange and outgoing flange, can Fast Installation disassembly, with even
Different fiber optic sensing devices are connected to, are suitable for not having to temperature, vibration test system without all replacements, flexibly and easily, section
Replacing construction is saved, measurement efficiency is improved.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of optical fiber point type temperature disturbance sensing device provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of first end cover provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of second end cover provided by the embodiment of the utility model；
Fig. 4 is a kind of structural block diagram of optical fiber point type temperature disturbance sensor-based system provided by the embodiment of the utility model；
Fig. 5 is that the first application structure of optical fiber point type temperature disturbance sensing device provided by the embodiment of the utility model is illustrated
Figure；
Fig. 6 is that the second application structure of optical fiber point type temperature disturbance sensing device provided by the embodiment of the utility model is illustrated
Figure；
Fig. 7 is that the third application structure of optical fiber point type temperature disturbance sensing device provided by the embodiment of the utility model is illustrated
Figure.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
Currently, common Fiber Optic Pyrometer scheme includes the line temperature-measuring system of distributed fibers based on scattering, such as base
In the line temperature-measuring system of distributed fibers of Raman scattering, point type optical fiber temperature measurement system based on fiber grating etc..Common optical fiber
Vibration measuring technical solution includes the line distribution type fiber-optic vibration measuring system based on Rayleigh scattering and the point type optical fiber based on fiber grating
Vibration measuring system etc..However the distributed optical fiber temperature measurement vibration measuring system based on scattering is inaccurate to the measurement of specified point, vulnerable to
The influence of system noise, environmental factor.Point type thermometric vibration measuring system based on fiber grating to other non-sensing amount sensitivity compared with
Height, in addition, if to realize that different scrnario testing demands needs to carry out test macro whole replacements, it is time-consuming and laborious.It is single
The effect of means detection is undesirable, is not able to satisfy the measurement demand of user, causes user experience poor, is based on this, this reality
A kind of optical fiber point type temperature disturbance sensing device and system provided with new embodiment can be alleviated and existing be dissipated based on Raman
Measurement the technology that there are accuracy not high, user test experience degree poor of the temperature-measuring system of distributed fibers penetrated for specified point
Problem.
For convenient for understanding the present embodiment, first to a kind of optical fiber point type temperature disclosed in the utility model embodiment
Degree vibration sensor describes in detail.
Embodiment one:
As shown in Figure 1, the utility model embodiment provides a kind of optical fiber point type temperature disturbance sensing device, comprising: outer
Shell 5, incident flange 1, outgoing flange 2, fixing buckle 3 and sensing element 4, the incidence flange and outgoing flange setting exist
On the shell, the fixing buckle is arranged in the shell, and the sensing element is fixedly installed on the fixing buckle, described
Incident flange, sensing element and the outgoing flange pass through measurement optical fiber concatenation.
In actual use, incident light enters in the present apparatus from incident flange, is emitted through sensing element from outgoing flange.Here
Incident light refer to sensing incident light；When only needing to measure a measurement point, i.e. the optical fiber point type temperature disturbance sensing device
When being one, which can be the light of light source sending；When needing to measure the measurement point of multiple distributions, i.e. the optical fiber
When point type temperature disturbance sensing device is multiple, which, which is also possible to sense from previous fiber optic point formula temperature disturbance, is filled
The light for the outgoing flange outgoing set, the light of the outgoing enter in the incident flange of latter optical fiber point type temperature disturbance sensing device.
In order to make it easy to understand, below with the first optical fiber point type temperature disturbance sensing device and the second optical fiber point type temperature disturbance
Two optical fiber point type temperature disturbance sensing devices of sensing device are illustrated, and the first optical fiber point type temperature disturbance sensing device is external
Light source, the second optical fiber point type temperature disturbance sensing device and the first optical fiber point type temperature disturbance sensing device are connected, specifically,
Light source is connected by connector with the incident flange of optical fiber point type temperature disturbance sensing device；First optical fiber point type temperature disturbance
The outgoing flange of sensing device is connected with the incident flange of the second optical fiber point type temperature disturbance sensing device.At this point, the first light
Fine point type temperature disturbance sensing device refers to previous optical fiber point type temperature disturbance sensing device above-mentioned, the second optical fiber point type temperature
Degree vibration sensor refers to above-mentioned latter optical fiber point type temperature disturbance sensing device.
Specifically, shell 5 plays the fixing buckle and sensing element of protection setting inside the housing, external environment is prevented
The damage and interference of (such as dust, impurity) to internal sensing element, improve the measurement stability of the device, are conducive to improve
Measuring accuracy.
Further, shell 5 is made of plastics, and in the present embodiment, shell 5 is made of polytetrafluoroethylene (PTFE), has resistance to height
Warm, low temperature resistant, corrosion resistant characteristic enables the device to the testing requirement for adapting to different test environment, improves the adaptation of device
Property.
Further, shell can be spherical structure or cylindrical structure, also can according to need and be arranged to other and do not advise
Shape then.The shape of shell can be arranged according to practical application scene, convenient, flexible, can adapt to different temperatures test point
Testing requirement improves application scenarios and the flexibility of device.
In the present embodiment, shell 5 uses cylindrical structure, is provided on shell for incident flange and outgoing flange to be arranged
Interface holes (being not shown in the drawing).
Further, referring to Fig. 2 and Fig. 3, shell includes first end cover 51 and second end cover 52, first end cover and second end
Lid, which is cooperatively connected, forms the interface holes for installing incident flange and outgoing flange.First end cover and second end cover are with dismountable
Mode connects, such as can snap connection or be bonded, and first end cover and second end cover match to form cylindrical structure.
Further, shell is oblate column structure, is occupied small in size.
Further, installation fixation hole 512 is provided in the first end face 511 of first end cover, the installation fixation hole is used
In fixing the device, the installation fixation hole can be round hole, square hole, and the quantity of the installation fixation hole is 1-4.
In the present embodiment, the optical fiber point type temperature disturbance sensing device is fixed at pilot to be measured by installation fixation hole.
The installation fixation hole is through-hole, and the installation fixation hole is round hole, and the quantity for installing fixation hole is 4.
Further, the inside (i.e. towards the side of first end cover) of the second end face 521 of second end cover is provided with fixation
Button 3.
Further, strip-shaped hole 522 is provided in the second end face of second end cover, strip-shaped hole is exchanged for accelerated heat,
Faster monitor temperature change.
Further, the strip-shaped hole be through-hole, and the strip-shaped hole be it is multiple, multiple strip-shaped holes are relative to second end face
The symmetrical mode in the center of circle be arranged in the second end face of second end cover, and the shape of strip-shaped hole be arc or linear.
Further, interface holes can be multiple, and it is on the shell or circumferential uniform to be spaced pre-determined distance scattering device
Distribution setting is on the shell.
Further, incident flange and outgoing flange can wait height to be arranged, and can not also wait high settings.Incident flange and
The setting height for being emitted flange can be set according to actual needs, and the height setting of incident flange and outgoing flange flexibly, can
The testing requirement for adapting to different temperatures test point, further improves application scenarios and the flexibility of device.
In the present embodiment, incident flange and outgoing flange are arranged in and cylindrical center location equal-height position, i.e., incident method
Orchid, the center of circle are emitted the line of flange in a horizontal linear.
Further, the measurement optical fiber includes single mode optical fiber or multimode fibre.Single mode optical fiber uses and multimode fibre
It can customize and select according to different application scenarios demands.
Specifically, the single mode optical fiber is using G.652 single mode optical fiber；The multimode fibre is using G.651 multimode fibre.
In order to be applicable in the testing requirement of different sensor-based systems, further, the sensing element is single mode optical fiber, fluorescence light
Any one of fibre, fiber grating.
When sensing element is single mode optical fiber, it is suitable for temperature-measuring system of distributed fibers or distribution type fiber-optic vibration measuring system, energy
It is enough to realize point distributed optical fiber temperature measuring and point distributed optical fiber vibration measurement.
When sensing element is optical fiber light coral, suitable for the point type optical fiber temperature measurement system based on fiber grating or it is based on optical fiber
The point type optical fiber vibration measuring system of grating can be realized the point type optical-fiber temperature measuring based on fiber grating or be based on fiber grating
Point type fiber-optic vibration measurement.
When sensing element is fluorescence optical fiber, it is suitable for fluorescence fiber temperature measurement system or fluorescence optical fiber vibration measuring system, Neng Goushi
Existing fluorescence-based distributed temperature measurements or fluorescence-based distributed vibration measurement.
The temperature of above-mentioned various fiber forms measures or vibration measurement is referred to as a distributed temperature vibrating sensing and surveys
Amount.
Further, the fixing buckle is made of elastoplastic, to adapt to the sensing element of different-diameter.
Further, the sensing element and the fixing buckle are multiple, and the sensing element and the fixing buckle
Quantity is identical.
The type of multiple sensing elements can be the same or different.And each sensing element labelled can identify
The information such as the type of sensing element and/or diameter.
The size of multiple fixing buckles is predisposed to the diameter for adapting to different sensing elements, and can use label for labelling, with
It distinguishes and installs convenient for tester, improve installation effectiveness.
It should be pointed out that transparent windows can be set on shell, in order to which tester checks the class of sensing element
The size of type, diameter or fixing buckle.Certainly, when incident flange and outgoing flange and sensing element,
Further, incident flange, outgoing flange are multiple, and incident flange, the quantity for being emitted flange and fixing buckle
It may be the same or different.
It should be pointed out that the quantity of sensing element and the fixing buckle can also be different, the reason is that, various sizes of
Same fixing buckle can also be applied in sensing element.
Further, multiple fixing buckles are arranged at intervals on the shell.In the present embodiment, multiple fixing buckles
It is arranged at equal intervals on the housing.
By the way that multiple fixing buckle intervals are arranged, under the steric requirements for making full use of shell, on the one hand can be
Sensing element reserved space, the interference that on the other hand can prevent multiple sensing elements from generating or line generate asking for intersection
Topic.It is of course also possible to which multiple take-up mounting grooves are arranged on the shell, for being fixedly connected with line, prevent from intersecting.
In the present embodiment, fixing buckle by with shell it is integrally formed in a manner of predetermined position inside the housing is set.
It should be pointed out that in other embodiments, when shell is elongated cylinder, can also in Fig. 1 along paper to
Multiple fixing buckles are set at equal intervals on interior direction.It is corresponding, multiple incident methods are set at equal intervals in paper inward direction
Blue and multiple outgoing flanges.Incident flange, outgoing flange, fixing buckle, the quantity of sensing element are identical.And fixing buckle can be with
Pass through the fixed preset height inside the housing of installation part.Installation part includes support rod or pull rod etc..
Further, fixing buckle includes that the first fixed plate (also known as upper mounted plate) and the second fixed plate are (also known as lower solid
Fixed board), first fixed plate and second fixed plate are oppositely arranged, and first fixed plate and second fixed plate
Length it is identical；The sensing element is arranged between first fixed plate and second fixed plate, and described first is fixed
The space for accommodating the sensing element is formed between plate and second fixed plate.
By the way that two fixed plates are arranged, the stationarity of fixing buckle on the one hand can be enhanced.
It should be pointed out that the length of the first fixed plate and the second fixed plate can be less than the length of sensing element (as schemed
Shown in) length of the first fixed plate and the second fixed plate can also be greater than the length of sensing element, to this present embodiment
It is not especially limited.
Further, fixing buckle is made of polytetrafluoroethylene material, can quickly conduct heat in sensing element.
When specifically used, sensing element 4 is mounted in fixing buckle 3, incident flange 1, sensing element 4, is emitted flange 2 to survey
Measure optical fiber concatenation.Incident external fiber is connected in incident flange 1 by connector.The type of optical fiber is measured as G.652 single mode
Optical fiber or the multimode fibre of other customizations (such as G.651 multimode fibre), outgoing flange 2 is for being connected to outgoing external fiber.Tool
Body, above-mentioned connector is for the optical fiber flange adapter with incident flanged joint.It is above-mentioned when the device is one
Incident external fiber is used for external fiber optic sensing devices.When the device is multiple, above-mentioned incident external fiber and outgoing are outer
Portion's optical fiber is also used to connect two devices adjacent to each other；It should be noted that sensing element 4, which regards different application scene, to be list
Mode fiber, fluorescence optical fiber, fiber grating, above-mentioned incident external fiber, outgoing external fiber and measurement optical fiber are same optical fiber
Type.
Optical fiber point type temperature disturbance sensing device provided by the embodiment of the utility model, comprising: shell, goes out incident flange
Flange, fixing buckle and sensing element are penetrated, on the shell, fixing buckle is arranged inside the shell for incident flange and the setting of outgoing flange,
Sensing element is fixedly installed on fixing buckle, and incident flange, sensing element and outgoing flange pass through measurement optical fiber concatenation.Therefore,
Technical solution provided by the embodiment of the utility model is existed by incident flange, outgoing flange and the setting of setting on the shell
There is use in sensing element, measurement optical fiber in shell, the measurement for alleviating existing optical fiber temperature-measurement vibration measuring system for specified point
The not high problem of family Experience Degree, and the influence of measurement point ambient environment vibrations, noise can be mitigated when use, be conducive to raising pair
In the measurement accuracy of measurement point.The device also has the advantages that install and use that easy, structure is simple simultaneously, is convenient for carrying test；
And the present apparatus can carry out the multiplexing of multiclass sensing using same structure, quickly cut for may be implemented when different sensor-based systems
It changes, when more emat sensor only needs to change the device, is not necessarily to welding, i.e., is accessed the present apparatus by the demounting flange at present apparatus both ends
New sensing system.In addition, shell can play the role of protecting internal sensor element and measure optical fiber, simultaneously should
Optical fiber point type temperature disturbance sensing device passes through incident flange and outgoing flange, can Fast Installation disassembly, it is different to be connected to
Fiber optic sensing devices are suitable for not having to temperature, vibration test system without all replacements, flexibly and easily, save replacing construction,
Improve measurement efficiency.
Embodiment two:
As shown in figure 4, the utility model embodiment provides a kind of optical fiber point type temperature disturbance sensor-based system, comprising: light
Fine sensing equipment 100 and such as the optical fiber point type temperature disturbance sensing device 200 that previous embodiment refers to, the Fibre Optical Sensor is set
It is standby to be connected with the optical fiber point type temperature disturbance sensing device.
Specifically, fiber optic sensing devices are connected with the optical fiber point type temperature disturbance sensing device by optical fiber.Here
Optical fiber with measurement optical fiber fiber type and model it is identical.
Further, the optical fiber point type temperature disturbance sensing device is one or more.Optical fiber point type temperature disturbance passes
Induction device can be determined according to the quantity of point to be measured and the fiber type of sensing element.
Specifically, when sensing element is common single mode optical fiber, in this case, optical fiber point type temperature disturbance sensing device
It can be arranged according to the quantity of point to be measured one or more；When sensing element is fiber grating, in this case, optical fiber point type
Temperature disturbance sensing device can be arranged one or more according to the quantity of point to be measured；When sensing element is fluorescence optical fiber,
In this case, optical fiber point type temperature disturbance sensing device is only capable of setting one.
Further, the fiber optic sensing devices include optical fiber distributed temperature sensing host, optical fiber distribution type vibration biography
Feel any one of host, fiber Bragg grating (FBG) demodulator or fluorescence optical fiber temperature demodulation instrument.
Specifically, fiber optic sensing devices according to the fiber type of the demand (temperature, vibration) of test and sensing element into
Row is chosen.
It should be pointed out that above-mentioned various types of fiber optic sensing devices include light source and detector.The light source
Light is detected for issuing.Here detection light is to enter entering for optical fiber point type temperature disturbance sensing device as sensing incident light
It penetrates in flange.Here light source can use the laser of preset wavelength；Detector includes photodiode.
The application scenarios of optical fiber point type temperature disturbance sensor-based system are illustrated separately below.
When fiber optic sensing devices be optical fiber distributed temperature sense host/(or) optical fiber distribution type vibration sense host, with
And optical fiber point type temperature disturbance sensing device (the hereinafter referred to as present apparatus) be it is multiple, in order to facilitate understanding and description is convenient, Fig. 5
In indicated with the present apparatus 1, the present apparatus 2, the present apparatus 3 ..., i.e., the system includes optical fiber distributed temperature sensing host/optical fiber point
When cloth vibrating sensing host and several present apparatus form, which can be used for a distributed temperature vibrating sensing measurement, reference
The application scenarios of Fig. 5, above system are described as follows: sensing incident light senses host/optical fiber distributed type from optical fiber distributed temperature
The light source of vibrating sensing host enters the present apparatus 1 and enters the present apparatus 1 through incident flange, then after the sensing element of the present apparatus 1
It is emitted from the outgoing flange of the present apparatus 1.Sense in the incident light present apparatus 1 in communication process, after being generated in sensing element to
Light is scattered, the rear orientation light generated in the sensing element of the present apparatus 1 backs into optical fiber point through the incident flange of the present apparatus 1
In cloth temperature sensing host/optical fiber distribution type vibration sensing host detector；Go out from what the outgoing flange of the present apparatus 1 was emitted
It penetrates the incident flange of light (i.e. as the sensing incident light of the present apparatus 2) through the present apparatus 2 and enters the present apparatus 2, then through the present apparatus 2
It is emitted from the outgoing flange of the present apparatus 2 after sensing element, the rear orientation light generated in the sensing element of the present apparatus 2 also passes through
The incident flange of the present apparatus 2 is emitted, and is finally returned that through the present apparatus 1 into detector；It is emitted from the outgoing flange of the present apparatus 2
Emergent light (the sensing incident light as the present apparatus 3) enter the present apparatus 3 incident flange.It is produced in the sensing element of the present apparatus 3
Raw rear orientation light enters the present apparatus 2 from the outgoing flange of the present apparatus 2, reversely along the sensing element of the present apparatus 2 and through this dress
2 incident flange outgoing is set, the outgoing flange into the present apparatus 1 is finally returned that into detector.Detector received signal
The calculating such as it is filtered, be averaged respectively by filtering algorithm, average algorithm by the computers of fiber optic sensing devices, it is available
The temperature of each test point.Certain computer can also carry out noise reduction process to signal.Wherein, filtering algorithm is to use Fourier
Time-domain signal is converted to frequency-region signal by transformation, is then selected suitable frequency spectrum section that other signals are set 0, is reused anti-Fourier
Frequency-region signal is converted to time-domain signal by leaf transformation.Average algorithm is flat for the signal of certain point or so several points to be weighted
, boundary is extended using the value on duplication boundary, and average weighted value is substituted initial value.It is pointed out that basis
The interior rear orientation light generated of the sensing element of the rear orientation light, the present apparatus 2 that are generated in the sensing element of the above-mentioned present apparatus 1,
The rear orientation light generated in the sensing element of the present apparatus 3 learns temperature/vibration of the present apparatus 1, the present apparatus 2, the present apparatus 3 respectively
It is dynamic.
When fiber optic sensing devices be fiber Bragg grating (FBG) demodulator and optical fiber point type temperature disturbance sensing device (hereinafter referred to as
The present apparatus) be it is multiple, in order to facilitate understanding and description is convenient, carrys out table in Fig. 6 with the present apparatus 1, the present apparatus 2, the present apparatus 3 ...
Show, i.e., when the system includes fiber Bragg grating (FBG) demodulator and several present apparatus composition, which can be used for a distributed temperature vibration
Sensing measurement, referring to Fig. 6, the application scenarios of above system are described as follows: sensing light source of the incident light from fiber Bragg grating (FBG) demodulator
Enter the present apparatus 1 through incident flange into the present apparatus 1, then after the sensing element of the present apparatus 1 light of transmission peak wavelength from this dress
Set 1 outgoing flange outgoing.It senses in the incident light present apparatus 1 in communication process, reflected light can be generated in sensing element, at this
The reflected light generated in the sensing element of device 1 backs into the detection of fiber Bragg grating (FBG) demodulator through the incident flange of the present apparatus 1
In device；The emergent light (i.e. the light of transmission peak wavelength, the sensing incident light as the present apparatus 2) being emitted from the outgoing flange of the present apparatus 1
Incident flange through the present apparatus 2 enters the present apparatus 2, then after the sensing element of the present apparatus 2 from the outgoing flange of the present apparatus 2
Outgoing, the reflected light generated in the sensing element of the present apparatus 2 the also incident flange outgoing through the present apparatus 2 are final through the present apparatus 1
It backs into detector；The emergent light (the sensing incident light as the present apparatus 3) being emitted from the outgoing flange of the present apparatus 2 into
Enter the incident flange of the present apparatus 3.The reflected light generated in the sensing element of the present apparatus 3 enters this from the outgoing flange of the present apparatus 2
Device 2 is emitted, into the outgoing of the present apparatus 1 reverses through the incident flange for entering the present apparatus 2 after the sensing element of the present apparatus 2
Flange is finally returned that into detector.It should be pointed out that according to the reflection generated in the sensing element of the above-mentioned present apparatus 1
Light, the interior reflected light generated of sensing element of the present apparatus 2, the interior reflected light generated of sensing element of the present apparatus 3 learn this respectively
The Temperature/Vibration of device 1, the present apparatus 2, the present apparatus 3.
When fiber optic sensing devices are fluorescence optical fiber temperature demodulation instrument and an optical fiber point type temperature disturbance sensing device
(the hereinafter referred to as present apparatus) is, in order to facilitate understanding and description is convenient, is indicated in Fig. 7 with the present apparatus 1, i.e., the system includes
When one fiber Bragg grating (FBG) demodulator and a present apparatus composition, which can be used for a distributed temperature vibrating sensing measurement, ginseng
According to Fig. 7, the application scenarios of above system are described as follows: when sensing element 4 is fluorescence optical fiber, sensing incident light by fluorescence optical fiber
The light source of temperature demodulation instrument enters in the present apparatus 1 through the incident flange of the present apparatus 1, and the sensing element through the present apparatus 1 absorbs, unglazed
It is emitted from the outgoing flange of the present apparatus 1.The fluorescence that fluorescence optical fiber (sensing element) generates goes out through the incident flange of the present apparatus 1
It penetrates, into the detector of fluorescence optical fiber temperature demodulation instrument.
It should be pointed out that since fluorescence optical fiber absorbs incident light, unglazed outgoing, therefore fluorescence optical fiber temperature demodulation instrument only
A present apparatus can be connected, cannot be connected multiple.
Optical fiber point type temperature disturbance sensor-based system provided by the embodiment of the utility model, with optical fiber provided by the above embodiment
Point type temperature disturbance sensing device technical characteristic having the same reaches identical so also can solve identical technical problem
Technical effect.
The technical effect and aforementioned device of system provided by the utility model embodiment, realization principle and generation are implemented
Example is identical, and to briefly describe, system embodiment part does not refer to place, can refer to corresponding contents in aforementioned device embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can be with reference to the corresponding process in aforementioned device embodiment, details are not described herein.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of optical fiber point type temperature disturbance sensing device characterized by comprising shell, is emitted flange, is solid incident flange
On the housing, the fixing buckle setting exists for fixed button and sensing element, the incidence flange and outgoing flange setting
In the shell, the sensing element is fixedly installed on the fixing buckle, the incidence flange, sensing element and the outgoing
Flange passes through measurement optical fiber concatenation.
2. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the sensing element is single
Any one of mode fiber, fluorescence optical fiber, fiber grating.
3. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the fixing buckle is by elasticity
Plastics are made.
4. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the sensing element and institute
It is multiple for stating fixing buckle, and the sensing element is identical as the quantity of the fixing buckle.
5. optical fiber point type temperature disturbance sensing device according to claim 4, which is characterized in that between multiple fixing buckles
On the housing every setting.
6. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the fixing buckle includes the
One fixed plate and the second fixed plate, first fixed plate and second fixed plate are oppositely arranged, the sensing element setting
Between first fixed plate and second fixed plate, is formed and held between first fixed plate and second fixed plate
Receive the space of the sensing element.
7. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the measurement optical fiber includes
Single mode optical fiber or multimode fibre.
8. optical fiber point type temperature disturbance sensing device according to claim 1, which is characterized in that the shell is spherical junctions
Structure or cylindrical structure.
9. a kind of optical fiber point type temperature disturbance sensor-based system characterized by comprising fiber optic sensing devices and such as claim
The described in any item optical fiber point type temperature disturbance sensing devices of 1-8, the fiber optic sensing devices and the optical fiber point type temperature are shaken
Dynamic sensing device is connected.
10. optical fiber point type temperature disturbance sensor-based system according to claim 9, which is characterized in that the Fibre Optical Sensor is set
Standby includes optical fiber distributed temperature sensing host, optical fiber distribution type vibration sensing host, fiber Bragg grating (FBG) demodulator or fluorescence optical fiber
Any one of temperature demodulation instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973497.9U CN208296900U (en) | 2018-06-22 | 2018-06-22 | Optical fiber point type temperature disturbance sensing device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973497.9U CN208296900U (en) | 2018-06-22 | 2018-06-22 | Optical fiber point type temperature disturbance sensing device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208296900U true CN208296900U (en) | 2018-12-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820973497.9U Active CN208296900U (en) | 2018-06-22 | 2018-06-22 | Optical fiber point type temperature disturbance sensing device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208296900U (en) |
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2018
- 2018-06-22 CN CN201820973497.9U patent/CN208296900U/en active Active
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