CN105823621A - Portable optical frequency domain reflectometer - Google Patents
Portable optical frequency domain reflectometer Download PDFInfo
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- CN105823621A CN105823621A CN201610175084.1A CN201610175084A CN105823621A CN 105823621 A CN105823621 A CN 105823621A CN 201610175084 A CN201610175084 A CN 201610175084A CN 105823621 A CN105823621 A CN 105823621A
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- module
- probe beam
- system module
- instrument
- circulator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Optical Communication System (AREA)
Abstract
The present invention discloses a portable optical frequency domain reflectometer. The portable optical frequency domain reflectometer is connected with an optical fiber to be detected through a circulator; the circulator is provided with a light source system module, a digital signal processing module, a receiving front-end module and an optical path system module which are arranged in order along the signal flow direction; the light source system module, the receiving front-end module and the digital signal processing module are connected with a processor through a bus; and the receiving front-end module is connected in series between the optical path system module and the circulator. The light source system module, the digital signal processing module, the receiving front-end module and the optical path system module are connected with the processor through the bus by employing the structure above mentioned, and therefore the high concentration is realized, the structure mode of parts of externally arranged modules is avoided in the prior art, the size is greatly reduced, and the portable optical frequency domain reflectometer is convenient to carry.
Description
Technical field
The present invention relates to a kind of probe beam deflation instrument, particularly relate to a kind of based on portable probe beam deflation instrument.
Background technology
Optical frequency domain reflection technology (OFDR) is a kind of measurement technology based on Michelson interference, and the coherent light signal of frequency linearity scanning is divided into reference light and flashlight after Michelson fiber-optic interferometer.Because the difference of light path, reference light and echo-signal light exist difference on the frequency, after the relevant mixing of photoelectric detector, the transmission characteristic of tested optical fiber can be obtained by frequency-domain analysis, and then record its performance and failure condition.The most external product exists that some modules are external causes integrated level problem the highest, bulky.
Summary of the invention
The technical problem to be solved is to provide a kind of based on portable probe beam deflation instrument, has feature portable, that integrated level is high.
For solving above-mentioned technical problem, the technical scheme is that a kind of based on portable probe beam deflation instrument, its innovative point is: described probe beam deflation instrument is connected with testing fiber by circulator, described circulator sets gradually light-source system module, digital signal processing module, receiving front-end module and light path system module along directions of signal flow, described light-source system module, receiving front-end module are connected with processor by control bus respectively with digital signal processing module, and described receiving front-end module is serially connected between described light path system module and described circulator.
Preferably, described light-source system module includes laser instrument and the laser control module being serially connected.
Preferably, described laser control module includes being sequentially connected in series optical filter, laser temperature or power control circuit, frequency locking feedback circuit, frequency sweep feedback control circuit.
Preferably, described digital signal processing module includes FPGA digital signal processing module, mass data storage module and the embedded system module being sequentially connected in series.
Preferably, described light path system module is auxiliary interferometer.
Preferably, described receiving front-end module includes the differential received module with described light path system module concatenation and the polarization diversity heterodyne reception light path module connected with described circulator and double flat weighing apparatus receiver module, described differential received module includes that difference Photoelectric Detection module and analog-to-digital conversion module, described differential received module and described double flat weighing apparatus receiver module are connected respectively in analog signal conditioner module.
Preferably, it has been arranged in series nonlinear frequency sweeping correction module between described analog signal conditioner module and processor.
Preferably, it has been arranged in series ADC between described analog signal conditioner module and processor.
It is an advantage of the current invention that: by using said structure, by light-source system module, digital signal processing module, receiving front-end module and light path system module are received on processor by bus the coming year, realize high concentration, avoid the version that traditional part of module is external, thus greatly reduce volume, it is simple to carry.
Accompanying drawing explanation
The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings；
Fig. 1 is a kind of structure principle chart based on portable probe beam deflation instrument of the present invention；
In figure: 1-circulator, 2-testing fiber, 31-laser instrument, 32-laser control module, 4-digital signal processing module, 51-differential received module, 52-polarization diversity heterodyne reception light path module, 53-double flat weighing apparatus receiver module, 54-analog signal conditioner module, 55-nonlinear frequency sweeping correction module, 56-ADC module, 6-light path system module, 7-control bus, 8-processor.
Detailed description of the invention
The present invention is connected with testing fiber 2 by circulator 1 based on portable probe beam deflation instrument, circulator 1 sets gradually light-source system module, digital signal processing module 4, receiving front-end module and light path system module 6 along directions of signal flow, light-source system module, receiving front-end module are connected with processor 8 by control bus 7 respectively with digital signal processing module 4, and receiving front-end module is serially connected between light path system module 6 and circulator 1.By using said structure, by light-source system module, digital signal processing module 4, receiving front-end module and light path system module 6 are received on processor 8 by bus the coming year, realize high concentration, avoid the version that traditional part of module is external, thus greatly reduce volume, it is simple to carry.
Above-mentioned light-source system module includes laser instrument 31 and the laser control module 32 being serially connected；Optical filter, laser temperature or power control circuit that laser control module 32 includes being sequentially connected in series, frequency locking feedback circuit, frequency sweep feedback control circuit.Digital signal processing module 4 includes FPGA digital signal processing module 4, mass data storage module and the embedded system module being sequentially connected in series；Light path system module 6 is auxiliary interferometer.Receiving front-end module includes the differential received module 51 with light path system module 6 concatenation and the polarization diversity heterodyne reception light path module 52 connected with circulator 1 and double flat weighing apparatus receiver module 53, differential received module 51 includes that difference Photoelectric Detection module and analog-to-digital conversion module, differential received module 51 and double flat weighing apparatus receiver module 53 are connected respectively in analog signal conditioner module 54.It is arranged in series nonlinear frequency sweeping correction module 55 between analog signal conditioner module 54 and processor 8, between analog signal conditioner module 54 and processor 8, is arranged in series ADC 56.
Finally it should be noted that, above example is only in order to illustrate technical scheme and non-limiting technical scheme, it will be understood by those within the art that, technical scheme is modified or equivalent by those, without deviating from objective and the scope of the technical program, all should contain in the middle of scope of the presently claimed invention.
Claims (8)
1. one kind based on portable probe beam deflation instrument, it is characterized in that: described probe beam deflation instrument is connected with testing fiber by circulator, described circulator sets gradually light-source system module, digital signal processing module, receiving front-end module and light path system module along directions of signal flow, described light-source system module, receiving front-end module are connected with processor by control bus respectively with digital signal processing module, and described receiving front-end module is serially connected between described light path system module and described circulator.
2. as claimed in claim 1 a kind of based on portable probe beam deflation instrument, it is characterised in that: described light-source system module includes laser instrument and the laser control module being serially connected.
3. as claimed in claim 2 a kind of based on portable probe beam deflation instrument, it is characterised in that: optical filter, laser temperature or power control circuit that described laser control module includes being sequentially connected in series, frequency locking feedback circuit, frequency sweep feedback control circuit.
4. as claimed in claim 1 a kind of based on portable probe beam deflation instrument, it is characterised in that: described digital signal processing module includes FPGA digital signal processing module, mass data storage module and the embedded system module being sequentially connected in series.
5. as claimed in claim 1 a kind of based on portable probe beam deflation instrument, it is characterised in that: described light path system module is auxiliary interferometer.
6. as claimed in claim 1 a kind of based on portable probe beam deflation instrument, it is characterized in that: described receiving front-end module includes the differential received module with described light path system module concatenation and the polarization diversity heterodyne reception light path module connected with described circulator and double flat weighing apparatus receiver module, described differential received module includes that difference Photoelectric Detection module and analog-to-digital conversion module, described differential received module and described double flat weighing apparatus receiver module are connected respectively in analog signal conditioner module.
7. as claimed in claim 6 a kind of based on portable probe beam deflation instrument, it is characterised in that: it is arranged in series nonlinear frequency sweeping correction module between described analog signal conditioner module and processor.
8. as claimed in claim 6 a kind of based on portable probe beam deflation instrument, it is characterised in that: it is arranged in series ADC between described analog signal conditioner module and processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175084.1A CN105823621A (en) | 2016-03-25 | 2016-03-25 | Portable optical frequency domain reflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175084.1A CN105823621A (en) | 2016-03-25 | 2016-03-25 | Portable optical frequency domain reflectometer |
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| Publication Number | Publication Date |
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| CN105823621A true CN105823621A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610175084.1A Pending CN105823621A (en) | 2016-03-25 | 2016-03-25 | Portable optical frequency domain reflectometer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644400A (en) * | 2016-12-30 | 2017-05-10 | 江苏骏龙光电科技股份有限公司 | Adaptive-range optical cable measuring device |
| CN110954298A (en) * | 2019-12-13 | 2020-04-03 | 江苏骏龙光电科技股份有限公司 | Optical frequency domain reflectometer based on industrial all-in-one machine |
| CN112401814A (en) * | 2020-11-13 | 2021-02-26 | 太原理工大学 | Medical endoscope shape optical fiber real-time sensing system and medical endoscope |
| CN114878141A (en) * | 2022-04-22 | 2022-08-09 | 成都飞机工业（集团）有限责任公司 | Airborne optical cable connection fault positioning method and system |
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| JP2012117886A (en) * | 2010-11-30 | 2012-06-21 | Nippon Telegr & Teleph Corp <Ntt> | Method and apparatus for optical frequency domain reflectometry |
| JP2012154790A (en) * | 2011-01-26 | 2012-08-16 | Nippon Telegr & Teleph Corp <Ntt> | Optical frequency domain reflectometry and optical frequency domain reflectometer |
| CN204269340U (en) * | 2014-10-15 | 2015-04-15 | 武汉康曼测控系统有限公司 | A kind of optical cable comprehensive tester |
| CN104782063A (en) * | 2012-10-15 | 2015-07-15 | 皇家飞利浦有限公司 | An optical frequency domain reflectometry (OFDR) system |
| CN105067103A (en) * | 2015-08-31 | 2015-11-18 | 上海交通大学 | Vibration detection device and method based on optical frequency domain reflectometer |
-
2016
- 2016-03-25 CN CN201610175084.1A patent/CN105823621A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012117886A (en) * | 2010-11-30 | 2012-06-21 | Nippon Telegr & Teleph Corp <Ntt> | Method and apparatus for optical frequency domain reflectometry |
| JP2012154790A (en) * | 2011-01-26 | 2012-08-16 | Nippon Telegr & Teleph Corp <Ntt> | Optical frequency domain reflectometry and optical frequency domain reflectometer |
| CN104782063A (en) * | 2012-10-15 | 2015-07-15 | 皇家飞利浦有限公司 | An optical frequency domain reflectometry (OFDR) system |
| CN204269340U (en) * | 2014-10-15 | 2015-04-15 | 武汉康曼测控系统有限公司 | A kind of optical cable comprehensive tester |
| CN105067103A (en) * | 2015-08-31 | 2015-11-18 | 上海交通大学 | Vibration detection device and method based on optical frequency domain reflectometer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644400A (en) * | 2016-12-30 | 2017-05-10 | 江苏骏龙光电科技股份有限公司 | Adaptive-range optical cable measuring device |
| CN110954298A (en) * | 2019-12-13 | 2020-04-03 | 江苏骏龙光电科技股份有限公司 | Optical frequency domain reflectometer based on industrial all-in-one machine |
| CN112401814A (en) * | 2020-11-13 | 2021-02-26 | 太原理工大学 | Medical endoscope shape optical fiber real-time sensing system and medical endoscope |
| CN112401814B (en) * | 2020-11-13 | 2022-11-11 | 太原理工大学 | Medical endoscope shape optical fiber real-time sensing system and medical endoscope |
| CN114878141A (en) * | 2022-04-22 | 2022-08-09 | 成都飞机工业（集团）有限责任公司 | Airborne optical cable connection fault positioning method and system |
| CN114878141B (en) * | 2022-04-22 | 2023-08-04 | 成都飞机工业（集团）有限责任公司 | Airborne optical cable connection fault positioning method and system |
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Application publication date: 20160803 |