CN203672456U - Optical fiber liquid level measuring device - Google Patents
Optical fiber liquid level measuring device Download PDFInfo
- Publication number
- CN203672456U CN203672456U CN201420020290.1U CN201420020290U CN203672456U CN 203672456 U CN203672456 U CN 203672456U CN 201420020290 U CN201420020290 U CN 201420020290U CN 203672456 U CN203672456 U CN 203672456U
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- light
- liquid level
- optical fiber
- disc
- measuring device
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- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 239000013307 optical fiber Substances 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000012384 transportation and delivery Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
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- Level Indicators Using A Float (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an optical fiber liquid level measuring device which comprises a shell and further comprises a float arranged in the shell. A disc is arranged at one end of the shell, a light passing hole is formed in the disc, a light blocking cover is arranged on the disc, a reflecting surface is arranged on the face, facing the disc, of the float, and a light transmitting-receiving device is arranged in the light blocking cover. The light transmitting-receiving device comprises a support arranged on the disc, a light transmission device is arranged on the support, the light transmission device comprises a light adjusting device, a lantern ring is arranged on the light adjusting device, and a collimating lens is arranged on the lantern ring in a clamped mode. According to the optical fiber liquid level measuring device, the phase difference formed by the fact that laser light arrives at the liquid level and departs from the liquid level is used for replacing electric signals or a mechanical mode to measure liquid level changes, and optical fiber is used for transmitting signals. The whole measuring process of the optical fiber liquid level measuring device is a full-light environment, circuit processing is performed in a safety environment, therefore, potential safety hazards caused by the electric signals are avoided, and the safety is guaranteed.
Description
Technical field
The utility model relates to water conservancy hydrology detection technique, more specifically relates to a kind of optical fiber liquid level measurement mechanism, is applicable to waterworks, swimming pool, and in cabin, naval vessel, water level etc. needs the fields such as liquid level information.
Background technology
Count example in liquid level in hydropower station water level and storage tank in water conservancy Hydrology:
Tradition hydropower station water level is measured, and is often made up of ball float and polycore cable, and the problem of existence has: 1, measurement point type is single, quantity is on the low side; 2, the easy corrosion of mechanism, damage; 3, need additional circuit to carry out water level instruction, can not automatically control floodgate; 4,, in the time that forebay is distant apart from station, cable transmission distance is limited; 5, cable is easily struck by lightning and is broken down, and thunder and lightning can, along cable transmission to Control of Power Plant chamber, burn main control equipment, and small hydropower station is generally based upon remote hill, greatly increases maintenance and repair cost.
In early stage storage tank, level gauging adopts mechanical principle mostly, in recent years along with the application of electronic technology, progressively to electromechanical integration future development, and many new measuring principles are developed, in conventional principle, also permeate electronic technology and microcomputer technology, in structure He in function, all improved a lot.At present the Oil Tank Liquid Level Measurement technology of China is also relatively backward, and Oil Tank Liquid Level Measurement method exists more problem and drawback, though have automatic measuring system has been installed, measuring accuracy is generally not high.If from external import high-precision liquid level instrument, price is too high again.Charged formula easily causes static simultaneously, has huge potential safety hazard.
Utility model content
The purpose of this utility model is in view of the foregoing defects the prior art has, a kind of optical fiber liquid level measurement mechanism is provided, thoroughly anti-lightning strike, essential safety, is particularly useful for the fields such as the level gauging of the water level on-line monitorings such as power station, reservoir, rivers, lake and storage tank oil product.
The utility model is achieved through the following technical solutions:
A kind of optical fiber liquid level measurement mechanism, comprises housing, also comprises the float being arranged in housing, housing one end is provided with disk, is provided with light hole on disk, is provided with the lid that is in the light on disk, float is provided with reflecting surface towards the one side of disk, in the lid that is in the light, is provided with light R-T unit.
Light R-T unit as above comprises the support being arranged on disk, is provided with light delivery on support, and light delivery comprises light regulating device, in light regulating device, is provided with the collar, is arranged with collimating mirror on the collar.
Collimating mirror as above is connected with optical circulator/optical branching device by coaxial optical fiber optical cable.
Light delivery as above is two.
Owing to having taked technique scheme, the utlity model has following technique effect:
1) simple in structure, easy to use;
2) utilize laser to come and go phase differential replacement electric signal or the variation of mechanical system measurement liquid level that liquid level forms, and with fiber optic conduction signal, the measuring process of whole optical fiber liquid level measurement mechanism is full luminous environment, processing of circuit is in security context, thereby the potential safety hazard of avoiding electric signal to bring, essential safety; With the electric wire in optical fiber cable replacement existing product, low energy consumption, low pollution, cost is lower, meets the industry policy of country's " light entering and copper back and energy-saving and emission-reduction "; Optical fiber is electrical isolation, corrosion resistant transmission medium, anti-electromagnetic interference (EMI), stable performance, reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is the schematical top view of the utility model the first embodiment;
Fig. 3 is the structural representation of the utility model the second embodiment;
Fig. 4 is the schematical top view of the utility model the second embodiment.
In figure: 1-housing; The 2-lid that is in the light; 3-disk; 4-float; 5-reflecting surface; 6-light R-T unit; 7-coaxial optical fiber optical cable; 8-optical circulator/optical branching device; 9-support; 10-light regulating device; The 11-collar; 12-collimating mirror; 13-optical fiber; 14-light hole; 15-laser control system; 16-signal processing system.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1: a kind of optical fiber liquid level measurement mechanism, comprise housing 1, be arranged on the float 4 in housing 1, housing 1 one end is provided with disk 3, on disk 3, be provided with light hole 14, on disk 3, be provided with to be in the light and cover 2, float 4 is provided with reflecting surface 5 towards the one side of disk 3, is in the light to cover in 2, to be provided with light R-T unit 6.Light R-T unit 6 comprises the support 9 being arranged on disk 3, on support 9, is provided with light delivery, and light delivery comprises light regulating device 10, is provided with the collar 11 in light regulating device 10, is arranged with collimating mirror 12 on the collar 11.
The utility model is in the time of work: collimating mirror 12 is connected with optical circulator/optical branching device 8 by coaxial optical fiber optical cable 7.Optical circulator/optical branching device 8 is connected with laser control system 15 and signal processing system 16 respectively.The pulse laser that laser control system 15 is launched transmits the electric signal of start-phase to signal processing system 16 by light R-T unit 6 directive liquid levels while, pulse laser reflects by the reflecting surface 5 on float 4 surfaces after arriving liquid level, reflected light enters light R-T unit 6, enter and enter into signal processing system 16 after the laser of coaxial optical fiber optical cable and change the electric signal that is loaded with target phase information into, signal processing system 16 will compare the electric signal of start-phase and be loaded with the electric signal of target phase information, thereby obtains light R-T unit to the distance between liquid level.
Embodiment 2: light delivery is two, and other are consistent with embodiment 1.Collimating mirror 12 in two light deliveries is directly connected with laser control system 15 and signal processing system 16 by optical fiber respectively.
The utility model is in the time of work: the collimating mirror 12 in two light deliveries is directly connected with laser control system 15 and signal processing system 16 by coaxial optical fiber optical cable 13 respectively.The pulse laser that laser control system 15 is launched transmits the electric signal of start-phase to signal processing system 16 by one of them light delivery directive liquid level while, pulse laser reflects by the reflecting surface 5 on float 4 surfaces after arriving liquid level, reflected light enters another light delivery, enter and enter into signal processing system 16 after the laser of another road coaxial optical fiber optical cable and change the electric signal that is loaded with target phase information into, signal processing system 16 will compare the electric signal and the electric signal that is loaded with target phase information of start-phase, thereby obtain light R-T unit to the distance between liquid level.
Because this patent adopts optical fiber cable conduction technique, measuring process no current, makes this patent safer.In actual measurement process, adopted two survey chi measuring techniques, high frequency is realized high measurement accuracy, and low frequency is realized large measurement range, makes measurement result more reliable.Because this patent is safe and reliable, so be specially adapted to level gauging field of power station liquid level information monitoring and liquid level information early warning and storage tank oil product etc.
Above example is only unrestricted in order to the technical solution of the utility model to be described, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or is replaced on an equal basis, and do not depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in claim scope of the present utility model.
Claims (4)
1. an optical fiber liquid level measurement mechanism, comprise housing (1), it is characterized in that, also comprise the float (4) being arranged in housing (1), housing (1) one end is provided with disk (3), is provided with light hole (14) on disk (3), is provided with the lid (2) that is in the light on disk (3), float (4) is provided with reflecting surface (5) towards the one side of disk (3), in the lid (2) that is in the light, is provided with light R-T unit (6).
2. a kind of optical fiber liquid level measurement mechanism according to claim 1, it is characterized in that, described light R-T unit (6) comprises the support (9) being arranged on disk (3), support is provided with light delivery on (9), light delivery comprises light regulating device (10), in light regulating device (10), be provided with the collar (11), on the collar (11), be arranged with collimating mirror (12).
3. a kind of optical fiber liquid level measurement mechanism according to claim 2, is characterized in that, described collimating mirror (12) is connected with optical circulator/optical branching device (8) by coaxial optical fiber optical cable (7).
4. a kind of optical fiber liquid level measurement mechanism according to claim 2, is characterized in that, described light delivery is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020290.1U CN203672456U (en) | 2014-01-13 | 2014-01-13 | Optical fiber liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020290.1U CN203672456U (en) | 2014-01-13 | 2014-01-13 | Optical fiber liquid level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672456U true CN203672456U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020290.1U Expired - Lifetime CN203672456U (en) | 2014-01-13 | 2014-01-13 | Optical fiber liquid level measuring device |
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| CN (1) | CN203672456U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248175A (en) * | 2016-10-09 | 2016-12-21 | 深圳市迈测科技股份有限公司 | Laser fiber fluid level measuring instrument and measuring method |
| CN106404116A (en) * | 2016-08-30 | 2017-02-15 | 深圳市光子传感技术有限公司 | Optical fiber liquid level sensor |
| CN106643980A (en) * | 2016-12-29 | 2017-05-10 | 重庆多邦科技股份有限公司 | Laser water level indicator |
| CN108431558A (en) * | 2015-08-03 | 2018-08-21 | 法玛通公司 | The device that liquid level is measured by optical reflectance measurements meter includes structure and the corresponding measurement method of the device |
| CN111623852A (en) * | 2020-04-24 | 2020-09-04 | 北京航天控制仪器研究所 | Device and method for measuring liquid oxygen level of rocket fuel by laser ranging |
| FR3100885A1 (en) * | 2019-09-14 | 2021-03-19 | Georges EUSEBE | Device for the Measurement of the height of a liquid by laser or LIDAR which is applied to the regulation of the level of a liquid in a swimming pool |
| CN113532594A (en) * | 2021-06-28 | 2021-10-22 | 唐山微探电子设备有限公司 | Optical fiber liquid level measuring device convenient to store and measuring method thereof |
-
2014
- 2014-01-13 CN CN201420020290.1U patent/CN203672456U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431558A (en) * | 2015-08-03 | 2018-08-21 | 法玛通公司 | The device that liquid level is measured by optical reflectance measurements meter includes structure and the corresponding measurement method of the device |
| CN106404116A (en) * | 2016-08-30 | 2017-02-15 | 深圳市光子传感技术有限公司 | Optical fiber liquid level sensor |
| CN106248175A (en) * | 2016-10-09 | 2016-12-21 | 深圳市迈测科技股份有限公司 | Laser fiber fluid level measuring instrument and measuring method |
| WO2018064846A1 (en) * | 2016-10-09 | 2018-04-12 | 深圳市迈测科技股份有限公司 | Laser fiber liquid level measuring instrument and measurement method |
| CN106643980A (en) * | 2016-12-29 | 2017-05-10 | 重庆多邦科技股份有限公司 | Laser water level indicator |
| FR3100885A1 (en) * | 2019-09-14 | 2021-03-19 | Georges EUSEBE | Device for the Measurement of the height of a liquid by laser or LIDAR which is applied to the regulation of the level of a liquid in a swimming pool |
| CN111623852A (en) * | 2020-04-24 | 2020-09-04 | 北京航天控制仪器研究所 | Device and method for measuring liquid oxygen level of rocket fuel by laser ranging |
| CN113532594A (en) * | 2021-06-28 | 2021-10-22 | 唐山微探电子设备有限公司 | Optical fiber liquid level measuring device convenient to store and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 430000 Wuhan East Lake New Technology Development Zone, Wuhan, Hubei Province Patentee after: WUHAN NEWFIBER PHOTOELECTRIC Co.,Ltd. Address before: Room 04, 6 / F, building 1-01, optical valley core center, 111 Optical Valley Avenue, Donghu Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: WUHAN NEWFIBER OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |