CN1308660C - Optical fiber weighing system - Google Patents
Optical fiber weighing system Download PDFInfo
- Publication number
- CN1308660C CN1308660C CNB2004100109301A CN200410010930A CN1308660C CN 1308660 C CN1308660 C CN 1308660C CN B2004100109301 A CNB2004100109301 A CN B2004100109301A CN 200410010930 A CN200410010930 A CN 200410010930A CN 1308660 C CN1308660 C CN 1308660C
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- optical
- weighing
- micro
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 49
- 238000005303 weighing Methods 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 238000005452 bending Methods 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000002360 explosive Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to an optical fiber weighing system which belongs to the technical field of weighing micro-bent optical fibers. A micro-bent optical fiber weighing sensor 1 is connected with a light transmitter 3 and a light receiver 4 through optical fibers 2 conducting optical signals, and the light transmitter 3 transmits constant optical signals; the light receiver 4 converts weighing optical signals transmitted by the micro-bent optical fiber weighing sensor 1 into electrical signals, and the light transmitter 3 and the light receiver 4 are respectively connected with a drive circuit 5 of a light receiving and transmitting device. The drive circuit 5 of a light receiving and transmitting device is connected with a high-speed analogue converter 6 which is connected with a data processing system 7 carrying out data processing and compensation for digital signals. The present invention has the advantages of low cost and convenient carrying, and not only can realize rapidly weighing and measuring other parameters under flammable and explosive environment, but also can realize remote alarm and monitoring.
Description
Technical field
The present invention and a kind of micro-bending optical fiber weighing and sensing system especially can realize rapid weighing under various rugged surroundings and inflammable and explosive environment, also can realize portable and remote monitoring.
Background technology
Present known weighing and sensing system mainly is the electronic-weighing sensor-based system.This electronic system is difficult to use in strong-electromagnetic field, deep-etching, inflammable and explosive applied environment.The applied environment bigger to what humidity, this system must be equipped with vacuum sealing system.The deficiency of existing electronic-weighing sensor-based system comprises that antijamming capability is low, mechanism's complexity, cost height, response speed waits slowly, and simultaneously, this electronic-weighing sensor-based system generally need be furnished with the metal table top, thereby volume and weight is all bigger, especially unfavorable what portable use.
Fiber optic microbend is meant the microbend of optical fiber generation under external force, and when bending surpassed critical buckling, the light signal that transmits in optical fiber produced leakage loss in the place of bending, and bending lossy more is serious more.Utilize this principle can design various stress/pressure transducers.Fibre system has the advantage that overcomes electronic-weighing sensor-based system deficiency.The microbend phenomenon of optical fiber just be it is found that in the past as far back as decades.But up to the present still there is not fiber optic microbend weighing and sensing system on the market.
Summary of the invention
In order to overcome the deficiency of existing weighing and sensing system, the invention provides optical fiber weighing and sensing of new generation system.The technical solution adopted in the present invention is: micro-bending optical fiber LOAD CELLS 1 links to each other with optical receiver 4 with optical transmitting set 3 by the optical fiber 2 of light conducting signal, optical transmitting set 3 emission constant light signals, the light signal of weighing that optical receiver 4 sends micro-bending optical fiber LOAD CELLS 1 converts electric signal to, this optical transmitting set 3 is connected optical transceiver driving circuit 5 respectively with optical receiver 4, this optical transceiver driving circuit 5 is connected with high speed analog converter 6, and this high speed analog converter 6 is connected with the data handling system 7 of digital signal being carried out data processing and compensation.The course of work is as follows: when weighing, thereby resin cartridge 14 and resin rodlet 13 make optical fiber generation curved transition on the resin rodlet 13 in distortion under the compressing of gravity, realize microbend, the light signal of micro-bending optical fiber LOAD CELLS 1 links to each other with optical receiver 4 with optical transmitting set 3 by optical fiber 2; The constant light signal is sent into micro-bending optical fiber LOAD CELLS 1 from optical transmitting set 3 by optical fiber 2, the light signal of weighing feeds back to optical receiver 4 and converts electric signal to by optical fiber 2, amplify by optical transceiver driving circuit 5 then, become digital signal through high speed analog converter 6 again, these digital signals are carried out data processing to data handling system 7 and compensation reaches the purpose of weighing.
The loss of transmitting optical signal increases with the reinforcement of fiber optic microbend in the optical fiber, makes its load-bearing bending by the extra package processing to optical fiber, also is referred to as elastic body.The micro-bending optical fiber LOAD CELLS mainly is to be made of optical fiber and elastic body.Transmitting optical signal comes from optical transmitting set in the optical fiber, elastic body is the load-bearing conversion of signals microbend of optical fiber, and then cause the loss of light signal and convert electric signal to by optical receiver, become digital signal through analog converter again, these digital signals are carried out data processing to data handling system and compensation reaches the purpose of weighing.The selection of sensitivity range of weighing is by realizing to the selection of optical fiber and to elastomeric design and processing.Optical fiber is thin more, and sensitivity is low more; The digital aperture of optical fiber is big more, and sensitivity is low more; Bending radius is big more, and sensitivity is low more.The thickness of resin rodlet 13 is by the decision of the bending radius of optical fiber, the bending radius that the radius of resin rodlet 13 must big what optical fiber.The winding cycle of optical fiber 2, short more then sensitivity was high more.The thickness of resin cartridge 14 and protection intensity, sensitivity, and linear response all has certain relation.
The mathematic(al) mode that data handling system adopted can change according to the characteristics of different application.If static measurement, data processing can adopt simple average treatment pattern; If measure fast, data processing need adopt complicated integral operation and statistical calculation pattern.This data handling system will be finished temperature drift and the compensation of nonlinearity to measuring system simultaneously.In some special applications, because of having stronger data handling system, this system can provide other parameter simultaneously.
The invention has the beneficial effects as follows: cost is low, and is portable, can be in various rugged surroundings, and the measurement that inflammable and explosive environment is realized rapid weighing and other parameter down also can realize remote alarms and monitoring.
Description of drawings
Fig. 1 is an optical fiber weighing and sensing system schematic of the present invention.
Fig. 2 is a kind of structural representation of portable micro-bending optical fiber LOAD CELLS.
Embodiment
Micro-bending optical fiber LOAD CELLS 1 links to each other with optical receiver 4 with optical transmitting set 3 by the optical fiber 2 of light conducting signal, optical transmitting set 3 emission constant light signals, the light signal of weighing that optical receiver 4 sends micro-bending optical fiber LOAD CELLS 1 converts electric signal to, this optical transmitting set 3 is connected optical transceiver driving circuit 5 respectively with optical receiver 4, this optical transceiver driving circuit 5 is connected with high speed analog converter 6, and this high speed analog converter 6 is connected with the data handling system 7 of digital signal being carried out data processing and compensation; Wherein micro-bending optical fiber LOAD CELLS 1 is for the part 11 of optical fiber is encapsulated on the axis of a resin rodlet 13, and another part 12 of optical fiber also protects with another resin cartridge 14 around the surface of resin rodlet 13.
Claims (1)
1, a kind of optical fiber weighing system, it is characterized in that: micro-bending optical fiber LOAD CELLS (1) links to each other with optical receiver (4) with optical transmitting set (3) by the optical fiber (2) of light conducting signal, optical transmitting set (3) emission constant light signal, the light signal of weighing that optical receiver (4) sends micro-bending optical fiber LOAD CELLS (1) converts electric signal to, this optical transmitting set (3) is connected optical transceiver driving circuit (5) respectively with optical receiver (4), this optical transceiver driving circuit (5) is connected with high speed analog converter (6), this high speed analog converter (6) is connected with the data handling system (7) of digital signal being carried out data processing and compensation, micro-bending optical fiber LOAD CELLS (1) is encapsulated on the axis of a resin rodlet (13) for the part of optical fiber (11), another part of optical fiber (12) is around the surface of this resin rodlet (13), and there is resin cartridge (14) this resin rodlet (13) outside that is wound with optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100109301A CN1308660C (en) | 2004-06-18 | 2004-06-18 | Optical fiber weighing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100109301A CN1308660C (en) | 2004-06-18 | 2004-06-18 | Optical fiber weighing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710390A CN1710390A (en) | 2005-12-21 |
| CN1308660C true CN1308660C (en) | 2007-04-04 |
Family
ID=35706662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100109301A Expired - Fee Related CN1308660C (en) | 2004-06-18 | 2004-06-18 | Optical fiber weighing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1308660C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487120B (en) * | 2013-05-20 | 2016-02-10 | 河南工业大学 | Grain seed LOAD CELLS and grain seed mass of 1000 kernel pick-up unit and method |
| CN103884406B (en) * | 2013-12-12 | 2015-12-09 | 中国石油化工股份有限公司 | The belt feeder weighing device of all-fiber sensing and Weighing method thereof |
| CN103925973B (en) * | 2014-04-22 | 2017-01-04 | 武汉理工大学 | A kind of continuous automatic weighing system of Fibre Optical Sensor exempting from velocity sensor and method |
| CN105300496A (en) * | 2014-06-20 | 2016-02-03 | 国网山西省电力公司电力科学研究院 | Optical fiber weight measuring device |
| CN111999210A (en) * | 2020-08-28 | 2020-11-27 | 刘翡琼 | Sample thermogravimetric analysis device based on high-sensitivity mass measurement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035355A (en) * | 1988-01-06 | 1989-09-06 | 单-检索有限公司 | The application of optical fiber in voltage sensitive sensor |
| US5260520A (en) * | 1992-04-02 | 1993-11-09 | Martin Marietta Energy Systems, Inc. | Apparatus for weighing and identifying characteristics of a moving vehicle |
| CN1144000A (en) * | 1994-03-08 | 1997-02-26 | 联合技术公司 | Embedded optical sensor capable of strain and temp. measurement using single diffraction grating |
| CN2553350Y (en) * | 2001-07-25 | 2003-05-28 | 张保军 | Fibre-optical measuring electronic track weighing apparatus |
-
2004
- 2004-06-18 CN CNB2004100109301A patent/CN1308660C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035355A (en) * | 1988-01-06 | 1989-09-06 | 单-检索有限公司 | The application of optical fiber in voltage sensitive sensor |
| US5260520A (en) * | 1992-04-02 | 1993-11-09 | Martin Marietta Energy Systems, Inc. | Apparatus for weighing and identifying characteristics of a moving vehicle |
| CN1144000A (en) * | 1994-03-08 | 1997-02-26 | 联合技术公司 | Embedded optical sensor capable of strain and temp. measurement using single diffraction grating |
| CN2553350Y (en) * | 2001-07-25 | 2003-05-28 | 张保军 | Fibre-optical measuring electronic track weighing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710390A (en) | 2005-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101729967B (en) | Acousto-optic conversion method and optical microphone based on multiple-mode interference | |
| CN100507475C (en) | Static pressure self-compensation optical fibre grating sonic device | |
| CN1308660C (en) | Optical fiber weighing system | |
| CN201408100Y (en) | High precision double corrugated pipe structure fiber grating liquid pressure sensor | |
| CN103047934A (en) | Optical fiber sensing microspur measurement system | |
| US5694497A (en) | Intrinsically self deforming fiber optic microbend pressure and strain sensor | |
| CN102680581A (en) | Matched-type fiber-grating acoustic emission sensing method with temperature compensation | |
| CN110108384A (en) | Based on hollow-core fiber surface plasma resonance in fine formula temperature sensor and detection method | |
| CN108362209B (en) | Displacement sensor and displacement detection method | |
| CN2537970Y (en) | Optical fibre pressure sensor | |
| CN102680161A (en) | Fiber brag grating atmospheric pressure sensing system | |
| WO2004080035A3 (en) | Transceiver power detection architecture | |
| CN202471007U (en) | Fiber sensing microspur measuring system | |
| CN200975912Y (en) | Weighing equipment | |
| CN2643296Y (en) | Optical Fiber vibration sensor | |
| CN203069301U (en) | Fiber bragg grating-type pressure sensor | |
| CN201178442Y (en) | Mobile phone having water pressure detection function | |
| CN211402137U (en) | Humidity sensor based on polymer optical fiber mode interferometer | |
| CN210862899U (en) | Vibration sensor based on polymer optical fiber microcavity and polymer optical fiber film | |
| CN202024961U (en) | Temperature self compensation fiber bragg grating (FBG) refraction index sensor based on conical corrosion | |
| CN110687076B (en) | Humidity sensor based on polymer optical fiber mode interferometer | |
| CN112097970A (en) | Pressure sensor | |
| CN2689191Y (en) | Optical-fibre level sensors | |
| CN219037910U (en) | Grating strain sensor for monitoring variable blade of fan | |
| CN210089906U (en) | Flange type full-sealed tension sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIANG YUANFANG Free format text: FORMER OWNER: LIANG SHAOHUA Effective date: 20080606 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080606 Address after: No. 1 Pu Chang Road, Yantai, Shandong Patentee after: Liang Yuanfang Address before: No. 118, liberty Road, Jilin, Changchun Patentee before: Liang Shaohua |
|
| ASS | Succession or assignment of patent right |
Owner name: YANTAI AISEN INFORMATION TECHNOLOGY CO.LTD. Free format text: FORMER OWNER: LIANG YUANFANG Effective date: 20080829 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080829 Address after: No. 1 Pu Chang Road, Yantai, Shandong Patentee after: Yantai Esen Information Technology Co., Ltd. Address before: No. 1 Pu Chang Road, Yantai, Shandong Patentee before: Liang Yuanfang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20190618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |