CN109060204A - A kind of optical fiber pressure monitoring system - Google Patents
A kind of optical fiber pressure monitoring system Download PDFInfo
- Publication number
- CN109060204A CN109060204A CN201811079206.2A CN201811079206A CN109060204A CN 109060204 A CN109060204 A CN 109060204A CN 201811079206 A CN201811079206 A CN 201811079206A CN 109060204 A CN109060204 A CN 109060204A
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- Prior art keywords
- pressure
- round tube
- fixed
- optical fiber
- hole
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 46
- 238000012544 monitoring process Methods 0.000 title description 26
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 39
- 239000011159 matrix material Substances 0.000 claims description 36
- 239000004020 conductor Substances 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000005457 optimization Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
- G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
Abstract
The present invention provides a kind of optical fiber pressures to monitor system, solves existing measurement means precision and the poor technical problem of safety.System includes: pressure conduction unit, for fixing measurement predispersed fiber tension section interconnected and pressure sensitive surface-stable；Optical signal demodulation device, for acquiring the optical signal of the measurement fiber optic conduction reflection and forming optical signal quantized data；Data processing terminal, for the optical signal quantized data to be converted to pressure data according to built-in measurement model.By optimizing rigid connection structure, so that the creep of counter productive and stress deformation are converted to the pressure sensitive surface that can efficiently measure, realize mechanical pressure and monitor measurement to high precision photoelectric range.The rigid connection structure of optimization the structural factor for eliminating potential leakage simultaneously so that the combination of rigid connection structure and pressure piping and container is more flexible reliable.
Description
Technical field
The present invention relates to pressure monitoring technical fields, and in particular to a kind of optical fiber pressure monitoring system.
Background technique
In the prior art, mechanical pressure gauge is generallyd use for the Fluid pressure measurement in pipeline, in measurement in machinery
Pressure gauge and duct survey hole interdigit are formed by the branch pipe pipe fitting, manually-operated gate and interface conversion flange of several sequential connections to be surveyed
Buret road measures at the linking sealing between pipeline components the often high risk area that leaks, once reveal will cause through
Ji loss and potential personal injury.The larger measurement real-time of measurement error of mechanical pressure gauge is poor simultaneously.
Summary of the invention
In view of the above problems, the embodiment of the present invention provides a kind of optical fiber pressure monitoring system, solves existing measurement means essence
Degree and the poor technical problem of safety.
The optical fiber pressure of the embodiment of the present invention monitors system, comprising:
Pressure conduction unit, for fixing measurement predispersed fiber tension section interconnected and pressure sensitive surface-stable；
Optical signal demodulation device, for acquiring the optical signal of the measurement fiber optic conduction reflection and forming optical signal quantization number
According to；
Data processing terminal, for the optical signal quantized data to be converted to pressure data according to built-in measurement model.
In one embodiment of the invention, the optical signal quantized data is sent at the data by internet of things data channel
Manage terminal.
In one embodiment of the invention, the pressure conduction unit includes:
Matrix forms the matrix cavity being connected to pressure piping for being rigidly connected with pressure piping；
Pressure conductor, for sequentially forming receiving cavity, the pressure sensitive surface and the measurement predispersed fiber tension section
Fixed structure is connected to the receiving cavity rigidly with described matrix cavity.
In one embodiment of the invention, described matrix includes integrally formed first cylinder and the first round tube, first circle
Pipe is fixed on the top of first cylinder, first round tube and the first cylinder coaxial line, in first side of circular pipe
Fluid through hole is opened up on the inside of wall at the top of first cylinder, fluid through hole runs through the top and bottom of first cylinder
Portion, the fluid through hole and first round tube form described matrix cavity.
It is uniformly distributed at the top of first cylinder around the first round tube side-wall outer side in one embodiment of the invention
Fixed hole, the fixed hole extend vertically through the top and bottom of first cylinder, 130 sidewall outer of the first round tube
Form connection screw thread.
In one embodiment of the invention, quantity identical as the fluid through hole is opened up on the side wall of first cylinder
Water conservancy diversion through-hole, the axis of the water conservancy diversion through-hole is vertical with the axis of the fluid through hole, the water conservancy diversion through-hole and the fluid
The one-to-one perforation of through hole.
In one embodiment of the invention, the pressure conductor includes integrally formed second round tube and sealing diaphragm, and described the
The outer diameter of two round tubes is equal to or less than the first cylinder outer diameter and the internal diameter of second round tube is equal to first circle
The outer diameter of pipe, it is described to seal the receiving for making second round tube form one end sealing at the top of the second round tube described in membrane covered
Cavity, described in first cylindrical parts insertion, so that the receiving cavity is merged with described matrix cavity portion, the sealing
Diaphragm is less than the thickness of first round tube and second round tube as the thickness on pressure sensitive surface.
In one embodiment of the invention, circumferentially uniformly distributed fixed blind hole on the bottom end face of second round tube is described
Second round tube, 160 side wall inner surface forms adaptation screw thread.
In one embodiment of the invention, the pressure conductor further include first fixed structure, the second fixed structure and one at
The fixation portal frame of type, the fixed portal frame include rectangle crossbeam, the first column and second vertical that axis is generally aligned in the same plane
Column is fixed on one end of the rectangle crossbeam at the top of first column, and the bottom of first column is fixed on described
On the top end face of two round tubes, the other end of the rectangle crossbeam, second column are fixed at the top of second column
Bottom be fixed on the top end face of second round tube, the rectangle crossbeam is parallel with the sealing diaphragm, the rectangle
The axis of crossbeam extends along the determination diametrical direction of second round tube, a pair of of extension side on the rectangle crossbeam extending direction
Wall is substantially parallel with the sealing diaphragm, and another pair extends be used as vertical with the sealing diaphragm of side wall and extends vertically side wall, and one
It is a it is described extend vertically that side wall is concordant with the determining diameter to form securing elongated side wall, the first fixed structure for it is described
The plate that securing elongated side wall is generally aligned in the same plane opens up in the middle part of the plate parallel with the sealing diaphragm vertical first group
Through slot, the first fixed structure are located at the sealing center, and second fixed structure is perpendicular to the sealing film
Second group of parallel channels at the top of piece, second group of parallel channels are located on the securing elongated side wall puts down with described first group
Row through slot is corresponding, described in first group of parallel channels with corresponding through slot in second group of parallel channels are respectively used to fixation
Measure an end of a pretension section of optical fiber, second round tube, the sealing diaphragm, described fixed gantry
Frame, the first fixed structure and second fixed structure are as the fixed structure.
In one embodiment of the invention, the end face of the sealing diaphragm uses non-smooth surface.
The optical fiber pressure monitoring system of the embodiment of the present invention is by optimization rigid connection structure, so that negative in measuring unit
The creep of effect and stress deformation are converted to the pressure sensitive surface that can efficiently measure, and realize mechanical pressure and monitor to high-precision
Spend the measurement of photoelectricity range.The rigid connection structure of optimization the structural factor for eliminating potential leakage simultaneously so that rigidity connect
The combination of binding structure and pressure piping and container is more flexible reliable.
Detailed description of the invention
Fig. 1 show the configuration diagram of optical fiber pressure of embodiment of the present invention monitoring system.
Fig. 2 show a kind of component composition axis side of pressure conduction unit in optical fiber pressure monitoring system of the embodiment of the present invention
Schematic diagram.
Fig. 3 show a kind of main view signal of pressure conduction unit matrix in optical fiber pressure monitoring system of the embodiment of the present invention
Figure.
Fig. 4 show a kind of vertical view signal of pressure conduction unit matrix in optical fiber pressure monitoring system of the embodiment of the present invention
Figure.
Fig. 5 show a kind of main view of pressure conduction cell pressure conductor in optical fiber pressure monitoring system of the embodiment of the present invention
Schematic diagram.
Fig. 6 show a kind of vertical view of pressure conduction cell pressure conductor in optical fiber pressure monitoring system of the embodiment of the present invention
Schematic diagram.
Fig. 7 show a kind of part of pressure conduction cell pressure conductor in optical fiber pressure monitoring system of the embodiment of the present invention
Main view schematic cross-sectional view.
Fig. 8 show a kind of part of pressure conduction cell pressure conductor in optical fiber pressure monitoring system of the embodiment of the present invention
Main view schematic cross-sectional view.
Specific embodiment
To be clearer and more clear the objectives, technical solutions, and advantages of the present invention, below in conjunction with attached drawing and specific embodiment party
The invention will be further described for formula.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The optical fiber pressure monitoring system of the embodiment of the present invention includes pressure sensitive surface and measurement optical fiber, and measurement optical fiber is formed
Pretension section is fixedly connected while pretension section forms firm stabilization with pressure sensitive surface.
Pressure sensitive surface carries loine pressure, is located at pressure piping part or pressure piping branch part.
Pretension section is by stretching measurement optical fiber part and being kept fixed the structure of spacing in the both ends setting for stretching part
It is formed.
There is correlation on pressure sensitive surface to the pretension of measurement optical fiber in the optical fiber pressure monitoring system of the embodiment of the present invention
Property influence, the deformation on pressure sensitive surface is related to Fluid pressure in pressure piping, it will be appreciated by those skilled in the art that optical fiber
The transmission characteristic that the variation of pretension will cause fiber optic conduction optical signal generates high-precision quantitative variation, by acquiring and handling this
The quantitative variation of kind can obtain high-precision pressure change signal.The optical fiber pressure monitoring system of the embodiment of the present invention passes through optimization
Rigid connection structure, so as to be converted to the pressure sensitive surface that can efficiently measure (close for the creep of counter productive and stress deformation
Sealer piece), it realizes mechanical pressure and monitors measurement to high precision photoelectric range.The rigid connection structure of optimization eliminate it is latent
Leakage structural factor simultaneously so that the combination of rigid connection structure and pressure piping and container is more flexible reliable.
It is as shown in Figure 1 that optical fiber pressure of the embodiment of the present invention monitors system.In Fig. 1, comprising:
Pressure conduction unit 100, for consolidating measurement predispersed fiber tension section interconnected and pressure sensitive surface-stable
It is fixed；
Optical signal demodulation device 200, for acquiring the optical signal of measurement fiber optic conduction reflection and forming optical signal quantized data；
Data processing terminal 300, for optical signal quantized data to be converted to pressure data according to built-in measurement model.
The optical fiber pressure monitoring system of the embodiment of the present invention forms pressure conduction, optical signal measurement and pressure quantization function
Independent system comprising modules, so that optical fiber pressure monitoring each module of system can be adopted with standalone upgrade and maintenance, the system of reducing
Purchase cost.
As shown in Figure 1, in an embodiment of the present invention, optical signal quantized data is transmitted by internet of things data channel 400
To data processing terminal 300.
The optical fiber pressure monitoring system of the embodiment of the present invention combines the reality for realizing pressure signal with Internet of Things transmission technology
When distributed capture and optical signal quantized data concentration conversion and loine pressure Centralized Monitoring.
The pressure conduction unit of the optical fiber pressure monitoring system of the embodiment of the present invention is as shown in Figure 2.In Fig. 2, pressure is passed
Leading unit 100 includes matrix 110 and pressure conductor 150, in which:
Matrix 110 forms the matrix cavity 111 being connected to pressure piping for being rigidly connected with pressure piping；
Pressure conductor 150, for sequentially forming receiving cavity 151, pressure sensitive surface 152 and measurement predispersed fiber tension section
Fixed structure 153, be connected to 111 rigidity of receiving cavity 151 and matrix cavity.
151 matrix 110 of receiving cavity and pressure conductor 150 rigidly fix in the axial direction, pressure piping, matrix cavity with
Receiving cavity is tightly connected.
The pressure conduction unit 100 of the embodiment of the present invention is strong by the integral rigidity that optimization component quantitative commitments component connects
Degree and airtightness, while making to greatly reduce on-site maintenance difficulty with replaceability, improve system availability again.
The structure of matrix 110 is as shown in Figure 3.In conjunction with shown in Fig. 3 and Fig. 4, matrix 110 includes integrally formed first cylinder
120 and first round tube 130, the first round tube 130 be fixed on the top of the first cylinder 120, the first round tube 130 and the first cylinder 120
Coaxial line.Around 130 side-wall outer side of the first round tube in the uniformly distributed fixed hole 121 in the top of the first cylinder 120, fixed hole
121 extend vertically through the top and bottom of the first cylinder 120.It is opened in 130 inside sidewalls of the first round tube at the top of the first cylinder 120
If fluid through hole 122, fluid through hole 122 runs through the top and bottom of the first cylinder 120.
Fluid through hole 122 and the first round tube 130 form matrix cavity 111.
The matrix 110 of the embodiment of the present invention is uniformly process using integral material, ensure that matrix in material selection
Structural strength can bear the fluid pressure after connection, after matrix pressure-bearing uniform stressed and generate uniform creep will not be to whole knot
Structure stability causes adverse effect.Meanwhile the structural stability of matrix 110 ensure that (or pressure is held for matrix 110 and pressure piping
Device) it is formed to be rigidly connected and completes that multifarious welding manner can be used when reliable closed connection.
In an embodiment of the present invention, uniformly distributed at the top of the first cylinder 120 around 130 side-wall outer side of the first round tube
Fixed hole 121, fixed hole 121 extend vertically through the top and bottom of the first cylinder 120.
In an embodiment of the present invention, 130 sidewall outer of the first round tube forms connection screw thread 131.
The matrix 110 of the embodiment of the present invention can carry out bolt with the transformational structure in the existing test hole location of pressure piping
Connection, cooperation sealing material form reliable rigid seal connection.Connection screw thread 131 is the company of packing pressure conductor 150 simultaneously
It connects and provides additional ruggedized construction and steady aligning structure.
In an embodiment of the present invention, the first cylinder 120 includes two fluid through holes 122, in the side of the first cylinder 120
The water conservancy diversion through-hole 123 of quantity identical as fluid through hole 122, the axis and fluid through hole 122 of water conservancy diversion through-hole 123 are opened up on wall
Axis it is vertical, water conservancy diversion through-hole 123 and the one-to-one perforation of fluid through hole 122.
The matrix 110 of the embodiment of the present invention forms necessary pressure release passage, water conservancy diversion through-hole 123 using water conservancy diversion through-hole 123
Relief valve be can connect to protect the accidental damage of pressure-sensitive component.Water conservancy diversion through-hole 123 is also used as other measuring appliances
Measuring signal connect channel.
The structure of pressure conductor 150 is as shown in Figure 5.In conjunction with shown in Fig. 5 and Fig. 6, pressure conductor 150 includes integrally formed
Second round tube 160 and sealing diaphragm 170, the outer diameter of the second round tube 160 are equal to or less than 120 outer diameter of the first cylinder and the second round tube
160 internal diameter is equal to the outer diameter of the first round tube 130.Sealing diaphragm 170, which covers, makes 160 shape of the second round tube at the top of the second round tube 160
The receiving cavity 151 sealed at one end.First round tube, 130 the second round tube of partial insertion 160, so that receiving cavity 151 and matrix
110 111 partial fusion of matrix cavity.
It seals diaphragm 170 and is used as pressure sensitive surface 152, sealing 170 thickness of diaphragm is less than the wall of other round tubes and cylinder
It is thick.It seals the ratio between material thickness identical with other round tubes and cylinder of diaphragm 170 and is less than 1:8.
The pressure conductor 150 of the embodiment of the present invention is uniformly process using integral material, ensure that pressure in material selection
The structural strength of power conductor 150 can bear the fluid pressure after connection, uniform stressed and produce after 150 main body pressure-bearing of pressure conductor
Raw uniform creep will not cause adverse effect to overall structure stability.Meanwhile the structural stability of pressure conductor 150 ensure that
Matrix 110 forms rigid connection with pressure conductor 150 and completes that multifarious welding can be used when reliable cavity airtight is connected to
Mode.And the relatively small thickness for sealing diaphragm 170 ensure that identical creep and stress deformation effect can be on sealing diaphragms 170
Reflect stronger elastic deformation.
In one embodiment of the invention, circumferentially uniformly distributed fixed blind hole 161 on the bottom end face of the second round tube 160, Gu
It is corresponding with the fixed hole 121 of matrix 110 to determine blind hole 161.
In an embodiment of the present invention, 160 side wall inner surface of the second round tube forms adaptation screw thread (attached to be not shown in the figure).
The pressure conductor 150 of the embodiment of the present invention can be into using the fixed hole 121 of fixed blind hole 161 and matrix 110
Row is bolted, and cooperation sealing material forms reliable rigid seal connection.Being adapted to screw thread simultaneously is the connection spiral shell with matrix 110
Line 131, which is correspondingly connected with, provides additional ruggedized construction and steady aligning structure.
In conjunction with shown in Fig. 5 and Fig. 6, pressure conductor 150 further includes being integrally formed with the second round tube 160 and sealing diaphragm 170
Fixation portal frame 180, first fixed structure 190 and the second fixed structure 195, fixed portal frame 180 include axis be located at it is same
The rectangle crossbeam 181 of one plane, the first column 182 and the second column 183, the top of the first column 182 are fixed on rectangle crossbeam
181 one end, the bottom of the first column 182 are fixed on the top end face of the second round tube 160, and the top of the second column 183 is solid
It is scheduled on the other end of rectangle crossbeam 181, the bottom of the second column 183 is fixed on the top end face of the second round tube 160, and rectangle is horizontal
Beam 181 is substantially parallel with sealing diaphragm 170, and the axis of rectangle crossbeam 181 extends along the determination diametrical direction of the second round tube 160.
A pair of side wall that extends on 181 extending direction of rectangle crossbeam is substantially parallel with sealing diaphragm 170, another pair extension side wall with it is close
Sealer piece 170 is substantially vertical as side wall is extended vertically, one of them extends vertically side wall and determines 181 side of extension of rectangle crossbeam
To determination diameter concordant (being generally aligned in the same plane) form securing elongated side wall 184.
First fixed structure 190 is a plate, and plate is generally aligned in the same plane with securing elongated side wall 184, is opened in the middle part of plate
If first group of parallel channels 191, first group of parallel channels 191 is vertical with sealing diaphragm 170, and first fixed structure 190 is located at close
170 center of sealer piece.
Second fixed structure 195 is second group of parallel channels 196, and second group of parallel channels 196 is located at securing elongated side wall
It is corresponding with first group of parallel channels 191 on 184.
First group of parallel channels 191 is respectively used to fixation measuring optical fiber with corresponding through slot in second group of parallel channels 196
A pretension section an end.
Second round tube 160, sealing diaphragm 170, fixed portal frame 180, first fixed structure 190 and the second fixed structure
195 are used as fixed structure.
The pressure conductor 150 of the embodiment of the present invention forms survey using first fixed structure 190 and the second fixed structure 195
The pretension section fixed structure of optical fiber is measured, so that pretension section and pressure sensitive surface 152 form and are rigidly connected, effective Feedback pressure
The pressure deformation of power sensitive surface 152 changes.
On the basis of the basic structure of above-described embodiment is constant, the optical fiber pressure monitoring system of one embodiment of the invention
Pressure conductor is as shown in Figure 7.In Fig. 7, the annular projection 171 of smooth transition is formed on the bottom of sealing diaphragm 170, to seal film
The radially spaced distribution in 170 center of piece.
The optical fiber pressure monitoring system of the embodiment of the present invention can make sealing diaphragm 170 hold using annular projection 171
When the deformation of creep generated by pressure and stress deformation, guarantee isotropism when deformation, avoids sealing diaphragm 170 by internal stress
It is unbalanced to lead to reduced service life.
On the basis of the basic structure of above-described embodiment is constant, the optical fiber pressure monitoring system of one embodiment of the invention
Pressure conductor is as shown in Figure 8.In fig. 8, sealing diaphragm 170 is one disk-shaped, and 170 edge of self-sealing diaphragm is to center, from close
The top surface of sealer piece is gradually smoothly formed down top cambered surface 172, and 170 edge of self-sealing diaphragm is to center, self-sealing membrane
The bottom surface of piece is gradually smoothly upwardly formed bottom cambered surface 173.
It is stronger that the optical fiber pressure monitoring system of the embodiment of the present invention utilizes top cambered surface 172 and bottom cambered surface 173 to be formed
It is right can effectively to enhance sealing diaphragm 170 by adjusting the radian difference of top cambered surface 172 and bottom cambered surface 173 for locked structure
Effective measuring range of Fluid pressure can preferably be adapted to the hightension structure of pretension section.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (10)
1. a kind of optical fiber pressure monitors system characterized by comprising
Pressure conduction unit, for fixing measurement predispersed fiber tension section interconnected and pressure sensitive surface-stable；
Optical signal demodulation device, for acquiring the optical signal of the measurement fiber optic conduction reflection and forming optical signal quantized data；
Data processing terminal, for the optical signal quantized data to be converted to pressure data according to built-in measurement model.
2. optical fiber pressure as described in claim 1 monitors system, which is characterized in that the optical signal quantized data passes through Internet of Things
Network data channel is sent to the data processing terminal.
3. optical fiber pressure as described in claim 1 monitors system, which is characterized in that the pressure conduction unit includes:
Matrix forms the matrix cavity being connected to pressure piping for being rigidly connected with pressure piping；
Pressure conductor is fixed for sequentially forming receiving cavity, the pressure sensitive surface and the measurement predispersed fiber tension section
Structure is connected to the receiving cavity rigidly with described matrix cavity.
4. optical fiber pressure as claimed in claim 3 monitors system, which is characterized in that described matrix includes integrally formed first
Cylinder and the first round tube, first round tube are fixed on the top of first cylinder, first round tube and first column
Body coaxial line opens up fluid through hole, fluid through hole in the first round tube inside sidewalls at the top of first cylinder
Through the top and bottom of first cylinder, the fluid through hole and first round tube form described matrix cavity.
5. optical fiber pressure as claimed in claim 4 monitors system, which is characterized in that exist around the first round tube side-wall outer side
The uniformly distributed fixed hole in top of first cylinder, the fixed hole extend vertically through the top and bottom of first cylinder
Portion, 130 sidewall outer of the first round tube form connection screw thread.
6. optical fiber pressure as claimed in claim 4 monitors system, which is characterized in that opened up on the side wall of first cylinder
The axis of the water conservancy diversion through-hole of quantity identical as the fluid through hole, the axis of the water conservancy diversion through-hole and the fluid through hole hangs down
Directly, the water conservancy diversion through-hole and the one-to-one perforation of fluid through hole.
7. optical fiber pressure as claimed in claim 4 monitors system, which is characterized in that the pressure conductor includes integrally formed
Second round tube and sealing diaphragm, the outer diameter of second round tube are equal to or less than the first cylinder outer diameter and second round tube
Internal diameter be equal to the outer diameter of first round tube, make described second to justify at the top of the second round tube described in the sealing membrane covered
Pipe forms the receiving cavity of one end sealing, described in first cylindrical parts insertion so that the receiving cavity with it is described
The fusion of matrix cavity portion, the sealing diaphragm are less than first round tube and described second as the thickness on pressure sensitive surface
The thickness of round tube.
8. optical fiber pressure as claimed in claim 7 monitors system, which is characterized in that edge on the bottom end face of second round tube
Circumferential uniformly distributed fixed blind hole, 160 side wall inner surface of the second round tube form adaptation screw thread.
9. optical fiber pressure as claimed in claim 7 monitors system, which is characterized in that the pressure conductor further includes first fixed
Structure, the second fixed structure and integrally formed fixed portal frame, the fixed portal frame includes what axis was generally aligned in the same plane
Rectangle crossbeam, the first column and the second column, are fixed on one end of the rectangle crossbeam at the top of first column, and described
The bottom of one column is fixed on the top end face of second round tube, and it is horizontal that the rectangle is fixed at the top of second column
The other end of beam, the bottom of second column are fixed on the top end face of second round tube, the rectangle crossbeam and institute
State that sealing diaphragm is parallel, the axis of the rectangle crossbeam extends along the determination diametrical direction of second round tube, and the rectangle is horizontal
A pair of side wall that extends on beam extending direction is substantially parallel with the sealing diaphragm, and another pair extends side wall and the sealing diaphragm
It is vertical to extend vertically that side wall is concordant with the determining diameter to form securing elongated side wall described in one as side wall is extended vertically,
The first fixed structure is the plate being generally aligned in the same plane with the securing elongated side wall, opened up in the middle part of the plate with it is described
First group of vertical parallel channels of diaphragm are sealed, the first fixed structure is located at the sealing center, and described second is solid
Determining structure is perpendicular to second group of parallel channels at the top of the sealing diaphragm, and second group of parallel channels are located at the fixation
Extend side wall on it is corresponding with first group of parallel channels, first group of parallel channels with it is right in second group of parallel channels
The through slot answered is respectively used to fix an end of a pretension section of the measurement optical fiber, second round tube, institute
Sealing diaphragm, the fixed portal frame, the first fixed structure and second fixed structure are stated as the fixed structure.
10. optical fiber pressure as claimed in claim 7 monitors system, which is characterized in that the end face of the sealing diaphragm is using non-
Flat surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811079206.2A CN109060204B (en) | 2018-09-14 | 2018-09-14 | Optical fiber pressure monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079206.2A CN109060204B (en) | 2018-09-14 | 2018-09-14 | Optical fiber pressure monitoring system |
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| CN109060204A true CN109060204A (en) | 2018-12-21 |
| CN109060204B CN109060204B (en) | 2023-11-28 |
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| CN105784260A (en) * | 2016-05-06 | 2016-07-20 | 武汉航空仪表有限责任公司 | Novel pressure sensor |
| CN205607584U (en) * | 2016-04-28 | 2016-09-28 | 杭州聚华光电科技有限公司 | Fiber grating air pressure sensor |
| CN206114181U (en) * | 2016-09-30 | 2017-04-19 | 中国通信建设第二工程局有限公司 | Flange joint's threaded connection diaphragm -seal pressure gauge structure |
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2018
- 2018-09-14 CN CN201811079206.2A patent/CN109060204B/en active Active
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| DE4231823A1 (en) * | 1992-09-23 | 1994-03-24 | Endress Hauser Gmbh Co | Pressure measuring device connecting flange - has plastics connector to provide corrosion resistance |
| CN201653609U (en) * | 2010-03-15 | 2010-11-24 | 无锡光芯科技有限公司 | Fiber bragg grating pressure sensor |
| CN202402851U (en) * | 2011-10-25 | 2012-08-29 | 上海泛华紧固系统有限公司 | Connection structure of length-adjustable detaching-proof threaded union of meter tube |
| CN205607584U (en) * | 2016-04-28 | 2016-09-28 | 杭州聚华光电科技有限公司 | Fiber grating air pressure sensor |
| CN105784260A (en) * | 2016-05-06 | 2016-07-20 | 武汉航空仪表有限责任公司 | Novel pressure sensor |
| CN206114181U (en) * | 2016-09-30 | 2017-04-19 | 中国通信建设第二工程局有限公司 | Flange joint's threaded connection diaphragm -seal pressure gauge structure |
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| CN109060204B (en) | 2023-11-28 |
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