CN206038147U - Calibration arrangement for be used for distributed location type optic fibre vibration host computer - Google Patents
Calibration arrangement for be used for distributed location type optic fibre vibration host computer Download PDFInfo
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- CN206038147U CN206038147U CN201620929534.7U CN201620929534U CN206038147U CN 206038147 U CN206038147 U CN 206038147U CN 201620929534 U CN201620929534 U CN 201620929534U CN 206038147 U CN206038147 U CN 206038147U
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- piezoceramics
- piezoelectric ceramics
- vibration
- signal
- encapsulation
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Abstract
The utility model discloses a calibration arrangement for be used for distributed location type optic fibre vibration host computer, calibration device includes the piezoceramics encapsulation, sets up piezoceramics in piezoceramics encapsulates, the piezoceramics surface is around there being naked fibre, outside the piezoceramics encapsulation was drawn at the both ends of naked fibre, wherein the optic fibre back -end processor was connected to one end, and the other end sets up the drive sub that the top set up and piezoceramics is connected of signal output part, piezoceramics encapsulation. The utility model has the advantages that: 1, repeatability is high, can can not produce the disturbance to other places with vibration source accurate control piezoceramics department, the signal is produced by signal generator, and the error is very little, 2, adjustable precision is high, can apply the signal of different frequency, intensity, wave form through oscilloscope, the vibration signal of the various frequencies in can simulate reality, 3, mark distributed location type optic fibre through piezoceramics and vibrate the host computer, can obtain very high precision to can obtain the performance index data of quantification.
Description
Technical field
This utility model is related to optical fiber vibration intrusion-detection system field, specifically a kind of to be used for Distributed localization type
The caliberating device of fiber-optic vibration main frame.
Background technology
Optical fiber vibration intrusion-detection system be one kind detected using optical fiber vibration sensing technology and indicate to enter or attempt into
Enter the warning system of protective range behavior.System can detect the regional extent of invasion information, be divided into hardware in actual use
Defence area or software defence area.Hardware defence area refers to the region of setting up defences divided according to the hardware location of actual fiber sensing unit；
Software defence area to refer to and take precautions against set up defences region that position divided to different in software.Optical fiber vibration intrusion-detection system is main
It is made up of optical fiber vibration sensing functional module, signal processing function module, controlling alarm and display function module.
For the performance of detection fiber vibration intrusion-detection system, Ministry of Public Security's testing standard originally to intrusion alarm function
For：
According to the system of laying that product description specifies, any one segment length is not more than into the optical fiber vibration sensing of 1000mm
Device is laid in length 700mm, and width is 500mm and thickness for glass one end of 5mm, and four angle 10mm below glass plate ×
The metal of 10mm × 10mm has been stood on tiptoe, and it is away from glass one end 100mm to lay distance（Away from other end 600mm）, apart from optical cable 500mm
One cushion block of placement at place, cushion block are highly 300mm (such as Fig. 1), by 3 Φ 35mm glass balls or the rubber of Φ 50mm weight 150g
Glueballs is continuously pushed from the top of cushion block in 2s.Test is repeated 3 times, detector all should provide intrusion alarm signal.
The standard that the Ministry of Public Security newly draws up, it is stipulated that for the detection alarm behavior of different laying areas should meet following requirement：
External application formula optical fiber vibration intrusion-detection system warning experimental technique is to extract detecting optical cable specific region to be tested
（Interference-type product is related to the compound product of principle of interference, extracts any defence area, chooses defence area zone line and is tested；
Grating fibers type product is related to the compound product of fiber grating principle, extracts any fiber grating node, chooses node attached
Near field is tested；Time Domain Reflectometry type product is related to the compound product of Time Domain Reflectometry principle, preferably extracts any software and prevents
Arbitrary node in area or optical cable, can Selection Software defence area zone line or arbitrary node tested）.Extract region and should cover whole
More than the 30% of individual region of setting up defences.
Can select（A）Or（B）Mode as test method.
（A）One group 5 is carried out to the installation carrier that sensing optic cable pilot region adheres to from jump bit or pendulum with 2J energy
Secondary Shocks, are spaced 1 second per Secondary Shocks, continuous to implement three groups, and per group of impact all should produce warning, and every group of attack time interval is unsuitable
Less than 30s.Shock point preferably should be distributed on the installation carrier of pilot region at Distance-sensing optical cable 10-20cm as far as possible
Extensively, the distance between two shock points are less than 30cm.
（B）Tested in the pilot region for extracting, according to the Intrusion Simulation behavioral approach that construction party or user propose
Such as, artificially climb, cross fence（Can need to contact installation when climbing, crossing fence and carry according to actual scene from instruments such as ladders
Body）, artificial destruction external application carrier is installed, with hard thing, weight（Such as spade, club etc.）Tap and clash into carrier, artificial mobile, dismounting
Detecting optical cable installs carrier, and system should be reported to the police.
Extracted during embedded fiber vibration intrusion-detection system product test respectively any sensing optic cable near-end, interlude,
Remote area optional position is tested respectively.Extract region and should cover and entirely set up defences more than the 30% of region.
Wall-embedded mounting system is recommended to select（C）As test method.Buried installation system is recommended to select（D）As examination
Proved recipe method.
（C）One is carried out to the installation carrier that sensing optic cable testing position is embedded in from jump bit or whereabouts steel ball with 5J energy
5 Secondary Shocks of group, every minor tick 3 seconds are continuous to implement three groups, and per group of impact all should produce warning, and every group of attack time interval is unsuitable
Less than 30s.Shock point should be as vertical with embedded optical cable normal direction as possible, preferably as widely distributed as possible on carrier is installed, two punchings
Hit the distance between a little less than 10m.
（D）Tested in sensing optic cable testing position, the test method such as people that can be proposed according to construction party or user
For excavating, trampling carrier（Can be according to actual scene from instruments such as spade, pick, excavators）, it is artificial or use certain objects
Pass through installation carrier, artificial percussion clash into, destroy mobile sensor optical cable or carrier is installed, system should be reported to the police.
Applicant is had found in process of the test, when being done experiment using jump bit or whereabouts steel ball, the position of vibration source and
The amplitude of vibration is wayward, easily to producing disturbance elsewhere, affects the precision of test.
The content of the invention
The purpose of this utility model is to provide a kind of demarcation for demarcating Distributed localization type fiber-optic vibration main frame to fill
Put, its repeatable accuracy is high.
To achieve these goals, the technical solution of the utility model is：It is a kind of to be used for Distributed localization type fiber-optic vibration
The caliberating device of main frame, it is characterised in that the caliberating device includes that piezoelectric ceramics is encapsulated, arranges piezoelectricity in piezoelectric ceramics encapsulation
Ceramics, the piezoelectric ceramics surface are wound with naked fibre, and the two ends of the naked fibre are drawn outside piezoelectric ceramics encapsulation, wherein one end connection light
Fine back-end processor, the other end arrange signal output part, and the top of piezoelectric ceramics encapsulation arranges the driving being connected with piezoelectric ceramics
Joint.
The drive sub of the piezoelectric ceramics is connected with signal generator, the signal output part by optical fiber with it is distributed
Positioning optical fiber vibration main frame connects.
According to preferred embodiment of the present utility model, the length of the naked fibre is 3 ~ 10m.
According to preferred embodiment of the present utility model, the piezoelectric ceramics is cylinder, is highly 10 ~ 20cm, a diameter of 3
~8cm。
The signal generator sends sine voltage signal, and piezoelectric ceramics produces vibration after voltage signal is received, profit
Vibration signal is gathered with the naked fibre for being wrapped in piezoelectric ceramics surface to be exported, tested Distributed localization type fiber-optic vibration main frame is adopted
Collect the Oscillation Amplitude of the vibration signal, and record the position of vibration source, contrasted with this and factory calibration, judge tested distribution
Whether formula positioning optical fiber vibration main frame is qualified.The utility model has the advantages that：1st, repeatability is high, can accurately control vibration source
At piezoelectric ceramics processed, will not be to producing disturbance elsewhere；Signal is produced by signal generator, error very little；2nd, adjustable accuracy
Height, can by oscillograph apply different frequency, intensity, waveform signal, can with simulating reality in various frequencies vibration
Signal；3rd, Distributed localization type fiber-optic vibration main frame is demarcated by piezoelectric ceramics, very high precision can be obtained, and can be obtained
To the performance indications data for quantifying.
Description of the drawings
Fig. 1 is the system block diagram of vibration source of the present utility model.
Fig. 2 is the structural representation of one embodiment of the present utility model.
Figure includes：
1st, Distributed localization type fiber-optic vibration main frame,
2nd, optical fiber,
3rd, piezoelectric ceramics,
4th, optical fiber tail-end processor,
5th, signal generator,
6th, caliberating device,
7th, wind naked fibre
8th, piezoelectric ceramics encapsulation,
9th, drive sub.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
As illustrated, a kind of caliberating device for Distributed localization type fiber-optic vibration main frame, it is characterised in that the mark
Determining device includes piezoelectric ceramics encapsulation 8, arranges piezoelectric ceramics 3 in piezoelectric ceramics encapsulation 8, and 3 surface of the piezoelectric ceramics is wound with and twines
Around naked fibre 7, the two ends of the winding naked fibre 7 are drawn outside piezoelectric ceramics encapsulation, and wherein one end connection is in piezoelectric ceramics encapsulation 8
Optical fiber tail-end processor 4, the other end arrange signal output part, piezoelectric ceramics encapsulation 8 top arrange be connected with piezoelectric ceramics 3
Drive sub 9.
The vibration source includes piezoelectric ceramics 3, and 3 surface of piezoelectric ceramics is wound with winding naked fibre 7, described to wind the one of naked fibre 7
Hold as vibrating source output terminal, originate for the vibration signal as Distributed localization type fiber-optic vibration main frame, the winding naked fibre 7
Other end connection optical fiber tail-end processor 4, be wound with the piezoelectric ceramics 3 of winding naked fibre 7 and optical fiber tail-end processor 4 be outer arranges pressure
Electroceramics encapsulation 8, and the drive sub 9 that connection piezoelectric ceramics 2 is set at the top of 8 is encapsulated in piezoelectric ceramics.Optical fiber tail-end process
Device 4 is used for processing fiber end face, is prior art, will not be described here.
According to preferred embodiment of the present utility model, the scaling method of Distributed localization type fiber-optic vibration main frame includes following
Step：
The signal output part of caliberating device 6 is directly connected to Distributed localization type fiber-optic vibration main frame by optical fiber 2（FPSS-
P）, signal generator 5 is connected in the drive sub 9 of vibration source 6；
Switch on power, open FPSS-P main frames and signal generator；
Signal generator is set：Frequency 1kHz, waveform are sine wave, and voltage is 20v；
Opening main frame upper computer software is used for checking vibrational waveform；
10 wave-shape amplitudes without friction of record, there are vibrational waveform amplitude and vibration that position occurs；
Take result average to compare with factory calibration, whether qualified see.
Above content is with reference to specific preferred implementation further detailed description of the utility model, it is impossible to
Assert that this utility model is embodied as being confined to above-mentioned these explanations.For the common skill of this utility model art
For art personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should
It is considered as belonging to protection domain of the present utility model.
Claims (3)
1. a kind of caliberating device for Distributed localization type fiber-optic vibration main frame, it is characterised in that the caliberating device includes pressure
Electroceramics is encapsulated, and arranges piezoelectric ceramics in piezoelectric ceramics encapsulation, and the piezoelectric ceramics surface is wound with naked fibre, the two ends of the naked fibre
Draw piezoelectric ceramics encapsulation outer, wherein one end connection optical fiber tail-end processor, the other end arranges signal output part, piezoelectric ceramics envelope
The top of dress arranges the drive sub being connected with piezoelectric ceramics.
2. the caliberating device of Distributed localization type fiber-optic vibration main frame is used for as claimed in claim 1, it is characterised in that：It is described
The drive sub of piezoelectric ceramics is connected with signal generator, and the signal output part is shaken with Distributed localization type optical fiber by wire jumper
Dynamic main frame connection.
3. the caliberating device of Distributed localization type fiber-optic vibration main frame is used for as claimed in claim 1, it is characterised in that：It is described
Piezoelectric ceramics is cylinder, is highly 10 ~ 20cm, a diameter of 3 ~ 8cm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015210954834 | 2015-12-24 | ||
| CN201521095483 | 2015-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038147U true CN206038147U (en) | 2017-03-22 |
Family
ID=58305111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620929534.7U Expired - Fee Related CN206038147U (en) | 2015-12-24 | 2016-08-24 | Calibration arrangement for be used for distributed location type optic fibre vibration host computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547457A (en) * | 2015-12-24 | 2016-05-04 | 上海华魏光纤传感技术有限公司 | Calibration system used for distributed positioning-type optical fiber vibration host and calibration method thereof |
-
2016
- 2016-08-24 CN CN201620929534.7U patent/CN206038147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547457A (en) * | 2015-12-24 | 2016-05-04 | 上海华魏光纤传感技术有限公司 | Calibration system used for distributed positioning-type optical fiber vibration host and calibration method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20210824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |