CN207832308U - A kind of fiber-optic vibration detector - Google Patents
A kind of fiber-optic vibration detector Download PDFInfo
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- CN207832308U CN207832308U CN201721868383.XU CN201721868383U CN207832308U CN 207832308 U CN207832308 U CN 207832308U CN 201721868383 U CN201721868383 U CN 201721868383U CN 207832308 U CN207832308 U CN 207832308U
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- fiber
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- microcontroller
- circulator
- analyzer
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Abstract
The utility model discloses a kind of fiber-optic vibration detectors, including sensing optic cable, vibrating sensor, alarm pedestal, vibrating sensor includes light-pulse generator, circulator, analyzer, optical detector, data collecting card, microcontroller, light-pulse generator connects microcontroller, and analyzer, optical detector, data collecting card and microcontroller are sequentially connected；Light-pulse generator receives the pulsed optical signals for generating pulsed optical signals, circulator by the first port of its own, and the third port of circulator exports feedback signal to analyzer；Alarm pedestal includes shell, and shell upper end is equipped with mounting groove, and the vibrating sensor and sensing optic cable are fixed with mounting groove, and shell is equipped with display screen and indicator light, and the display screen and indicator light are connect with microcontroller.The utility model works independently, and does not influence the work in other defence areas when it is damaged；Analyzing operation is carried out to feedback signal by the way that analyzer is arranged, greatly promotes the positioning accuracy and efficiency of sensor.
Description
Technical field
The utility model is related to a kind of fiber-optic probe technology more particularly to a kind of fiber-optic vibration detectors.
Background technology
Currently, fiber optic intrusion detection system integrates optical communication technique, sensing measurement technology, Realtime Alerts technology, it is
A kind of advanced vibration sensing system of measuring technique has real-time measurement, detectivity height, wide dynamic range, anti-electromagnetism dry
The features such as ability is strong is disturbed, is widely answered in places such as national defence boundary line, petroleum gas transmission channel, airport, nuclear power stations
With, also receive both at home and abroad research in very big concern.
But existing fiber-optic probe technology has the following defects：
Fiber optic intrusion detection system since its working environment is changeable often needs that multiple defence areas is divided into perform intrusion detection,
The range size in each defence area is also different, is brought greatly not in actual deployment fiber optic intrusion detection system to user
Just, occupied space is big, and system maintenance is difficult.In addition, the signal light of traditional fiber vibration sensing system comes from the arteries and veins of propagated forward
The backward Rayleigh scattering washed off is affected the polarization state behind this position due to disturbance location, leverages operating accuracy and effect
Rate.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of fiber-optic vibration detector,
Multiposition high-efficiency high-accuracy sensing can be promoted, is economized on resources.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of fiber-optic vibration detector, including sensing optic cable, vibrating sensor, alarm pedestal, the vibrating sensor packet
Light-pulse generator, circulator, analyzer, optical detector, data collecting card, microcontroller are included, light-pulse generator connects microcontroller, analyzing
Device, optical detector, data collecting card and microcontroller are sequentially connected；For generating pulsed optical signals, circulator passes through light-pulse generator
The first port of its own receives the pulsed optical signals, and sensing optic cable receives the pulsed light letter of circulator second port output
Number, and a feedback signal is exported to the second port of circulator, the third port of circulator exports the feedback signal to analyzing
Device；The alarm pedestal includes shell, and shell upper end is equipped with mounting groove, and the vibrating sensor and sensing optic cable are and mounting groove
Fixed, shell is equipped with display screen and indicator light, and the display screen and indicator light are connect with microcontroller.
Further, the light-pulse generator is laser.
Further, the sensing optic cable includes sensor fibre, conduction optical fiber and multiple fiber couplers, the conduction
Optical fiber is divided into the discrete conduction optical fiber section of multistage, is connected by fiber coupler between the conduction optical fiber section of two sections of arbitrary neighborhood,
The output end of fiber coupler connects sensor fibre, and the end of the sensor fibre is connected with fiber reflector.
Further, it is additionally provided with human-computer interaction interface on the shell, which is electrically connected with microcontroller.
Further, the shell is equipped with holding tank for fixing human-computer interaction interface, in the opening of the holding tank
It is hinged with protection cap.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model works independently, and does not influence the work in other defence areas when it is damaged, optimizes and stacked by defence area
System maintenance difficulty big problem when the more defence areas damage constituted；
(2) analyzing operation is carried out to feedback signal by the way that analyzer is arranged, greatly promotes the positioning accuracy and effect of sensor
Rate.
Description of the drawings
Fig. 1 is a kind of module map of fiber-optic vibration detector of the utility model；
Fig. 2 is a kind of structural schematic diagram of alarm pedestal of the utility model.
In figure：10, shell；11, mounting groove；12, display screen；13, indicator light；14, human-computer interaction interface；15；Protection cap.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As depicted in figs. 1 and 2, the utility model provides a kind of fiber-optic vibration detector comprising sensing optic cable, vibration pass
Sensor, alarm pedestal, the vibrating sensor includes light-pulse generator, circulator, analyzer, optical detector, data collecting card, list
Piece machine, light-pulse generator connect microcontroller, and analyzer, optical detector, data collecting card and microcontroller are sequentially connected；Light-pulse generator is used
In generating pulsed optical signals, circulator receives the pulsed optical signals, sensing optic cable reception ring by the first port of its own
The pulsed optical signals of shape device second port output, and a feedback signal is exported to the second port of circulator, the third of circulator
Port exports the feedback signal to analyzer；The alarm pedestal includes shell 10, and 10 upper end of shell is equipped with mounting groove 11, institute
It states vibrating sensor and sensing optic cable to fix with mounting groove 11, shell 10 is equipped with display screen 12 and indicator light 13, described aobvious
Display screen 12 and indicator light 13 are connect with microcontroller.
Above-mentioned analyzer be used for by the feedback signal of the optical fiber link exported by the third port of the circulator into
Row analyzing operates；Optical detector receives the output signal of the analyzer, converts optical signals into electric signal output, data acquisition
Card, receives the electric signal, and conversion stores and is sent to next stage circuit；Microcontroller receives the output number of the data collecting card
According to completion feedback signal waveform is drawn, and drawn waveform is exported to display screen and is shown.Alarm pedestal is for working as arteries and veins
Pulsed light signal is alarmed when propagating serious cheap normal waveform.
Sensing optic cable includes that sensor fibre, conduction optical fiber and multiple fiber couplers, the conduction optical fiber are divided into multistage
Discrete conduction optical fiber section is connected by fiber coupler between the conduction optical fiber section of two sections of arbitrary neighborhood, fiber coupler
Output end connects sensor fibre, and the end of the sensor fibre is connected with fiber reflector.Light-pulse generator enters by circulator
Sensing optic cable, by sensing optic cable scattering and reflected optical signal be output to analyzer analyzing by circulator, finally by
Microcontroller exports the oscillogram of real-time sensing detection Vibration Condition.Since multiple mutually independent sensings are arranged in the utility model
Optical fiber section realizes the standalone probe sensing of multiple positions so that the disturbance of some position or multiple positions or sensing operation are not
The pulse signal that can influence the sensing branch of other positions is propagated.
Light-pulse generator in the utility model is laser, is generated by laser generator.As preferred embodiment, shell
Human-computer interaction interface 14 is additionally provided on body 10, which is electrically connected with microcontroller.In human-computer interaction interface 14
Input for carrying out parameter etc. to user.The shell 10 is equipped with the holding tank for fixing human-computer interaction interface 14, should
Protection cap 15 is hinged in the opening of holding tank.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (5)
1. a kind of fiber-optic vibration detector, which is characterized in that including sensing optic cable, vibrating sensor, alarm pedestal, the vibration
Sensor includes light-pulse generator, circulator, analyzer, optical detector, data collecting card, microcontroller, and light-pulse generator connects monolithic
Machine, analyzer, optical detector, data collecting card and microcontroller are sequentially connected；Light-pulse generator is for generating pulsed optical signals, annular
Device receives the pulsed optical signals by the first port of its own, and sensing optic cable receives the pulse of circulator second port output
Optical signal, and a feedback signal is exported to the second port of circulator, the third port of circulator exports the feedback signal extremely
Analyzer；The alarm pedestal includes shell, and shell upper end is equipped with mounting groove, the vibrating sensor and sensing optic cable with peace
Tankage is fixed, and shell is equipped with display screen and indicator light, and the display screen and indicator light are connect with microcontroller.
2. fiber-optic vibration detector as described in claim 1, which is characterized in that the light-pulse generator is laser.
3. fiber-optic vibration detector as described in claim 1, which is characterized in that the sensing optic cable includes sensor fibre, passes
Guiding fiber and multiple fiber couplers, the conduction optical fiber are divided into the discrete conduction optical fiber section of multistage, two sections of arbitrary neighborhood
It is connected by fiber coupler between conduction optical fiber section, the output end of fiber coupler connects sensor fibre, the sensor fibre
End be connected with fiber reflector.
4. fiber-optic vibration detector as described in claim 1, which is characterized in that be additionally provided with human-computer interaction circle on the shell
Face, the human-computer interaction interface are electrically connected with microcontroller.
5. fiber-optic vibration detector as claimed in claim 4, which is characterized in that the shell is equipped with for fixing man-machine friendship
The holding tank at mutual interface is hinged with protection cap in the opening of the holding tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868383.XU CN207832308U (en) | 2017-12-27 | 2017-12-27 | A kind of fiber-optic vibration detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868383.XU CN207832308U (en) | 2017-12-27 | 2017-12-27 | A kind of fiber-optic vibration detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832308U true CN207832308U (en) | 2018-09-07 |
Family
ID=63389846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721868383.XU Active CN207832308U (en) | 2017-12-27 | 2017-12-27 | A kind of fiber-optic vibration detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207832308U (en) |
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2017
- 2017-12-27 CN CN201721868383.XU patent/CN207832308U/en active Active
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