CN1184466C - Portable real time fibre-optic fluorophotometer - Google Patents
Portable real time fibre-optic fluorophotometer Download PDFInfo
- Publication number
- CN1184466C CN1184466C CNB011275480A CN01127548A CN1184466C CN 1184466 C CN1184466 C CN 1184466C CN B011275480 A CNB011275480 A CN B011275480A CN 01127548 A CN01127548 A CN 01127548A CN 1184466 C CN1184466 C CN 1184466C
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- fluorophotometer
- probe
- optical
- fluorescence
- fiber
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Abstract
The present invention relates to a portable real-time full optical fiber fluorophotometer which comprises a fluorescence excitation device, a fluorescence receiving device, a reference device, a probe, a detector, a corresponding optical system, a single-chip computer control device and a power supply. The fluorophotometer is characterized in that an underwater real-time detection full optical fiber probe without any photoelectric element comprises light-conducting measurement optical fibers and a light-shielding detection cavity body; and the detector adopts low-pressure silicon photoelectric diodes. The fluorophotometer has the characteristics of small size, light weight, portability, convenient operation, good electric insulation, strong electromagnetic interference resistance, high sensitivity, wide dynamic range and low cost, and is an ideal instrument for detecting mineral oil in water under the ocean environment.
Description
Technical field
The present invention relates to a kind of on-the-spot portable real time fibre-optic fluorophotometer that detects mineral oil in water concentration and other organic substance in waters, the face of land that is used for.
Background technology
Along with industrialized development, the ocean is in the exploitation and the transportation of oil, especially in the gas blowout accident that very large scale tanker accident and offshore drilling cause, make surface water quality be subjected to large-area pollution, very harmful to water environment, at first need pollution source are carried out on-the-spot detection rapidly, continuously for this reason, in time grasp waters mineral oil and pollute development live telecast.The at present employing taken a sample more, carry out Measurement and analysis then in the laboratory or adopt photofluorometer in the water, be about to fluorescence excitation pulse xenon lamp and power supply and trigger, excite optical lens system, comprise the fluorescence receiving lens system of a plurality of optical filters, the reception photo-electric conversion element and the interlock circuits such as signal Processing operating circuit and working power that must be aided with the photomultiplier of high pressure are assembled in the etch-proof metallic seal casing cylinder as popping one's head in the water, by multicore underwater cable transmission power supply and fluoroscopic examination electric signal.This transmission underwater cable is connected with Single-chip Controlling cabinet on the boat deck.Though also can realize on-the-spot detection in real time, probe size weighs greatly in the water, the water-stop condition requires high; Power supply, signal-transmitting cable are big and heavy, and electromagnetic interference (EMI) is big, and it is loaded down with trivial details to change the optical filter and other element formality that detect organic different material, operation inconvenience, and cost an arm and a leg, wide popularization and application is subjected to restriction to a certain degree.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of portable real time fibre-optic fluorophotometer is provided.
The present invention is the improvement to photofluorometer in the existing water, mainly the photomultiplier with detector replaces with the little semiconductor silicon photodiode (PIN) of low pressure volume, and the in real time full fibre-optical probe of specialized designs, replace popping one's head in the huge water, the whole relative set in the probe move in the cabinet waterborne in the water thereby realize having.
Obviously, the present invention does not need tight water-stop owing to do not comprise other any optoelectronic components in its probe.Make photo-electric conversion element with low pressure semiconductor silicon photodiode again, thus volume little, in light weight, carry easy to operately, electrical insulating property is good, anti-electromagnetic interference (EMI) is strong, and highly sensitive, wide dynamic range is high temperature resistant, anti-vibration and impact are played expansion, raising effect to photofluorometer in traditional water.Can finish under many situations that photofluorometer is difficult in the traditional water, even can not finishing of task, be the desirable instrument of ocean, oil port, harbour, offshore oil development platform varying environment detection mineral oil in water, also can detect the concentration of other fluorescence organic contaminants in the water easily.The present invention also have manufacture simple, advantage easy and simple to handle, cheap.
Description of drawings
Further specify the present invention below by drawings and Examples.
Fig. 1 general structure synoptic diagram of the present invention.
The full fibre-optical probe structure of Fig. 2 leaded light of the present invention is divided Jie synoptic diagram.
Fig. 3 leaded light measuring optical fiber of the present invention structural representation.
Fig. 4 excitation fiber section of the present invention enlarged diagram.
Fig. 5 reception fibre profile of the present invention enlarged diagram.
Fig. 6 reference optical fiber section of the present invention enlarged diagram.
Fig. 7 detection fiber section of the present invention enlarged diagram.
Fig. 8 panel construction synoptic diagram of the present invention.
Embodiment
The present invention has fluorescence excitation optics lens combination 9, trigger 12, the fluorescence excitation device that pulse xenon lamp 11 and xenon lamp power supply 13 thereof constitute, there is fluorescence to receive optical lens group 8, the fluorescence receiving trap that detector 17 constitutes, with corresponding measuring sonde 27, also have reference optical lens 7, reference unit and corresponding single-chip microcomputer 15 that another identical detector 16 constitutes, keyboard 19, nixie display 20, indicator 18 and working power and switch A, the control device that B constitutes, it is characterized in that popping one's head in 27 is full fibre-optical probes that a underwater real-time is surveyed, the incident optical 1 that it links to each other with above-water host shell 10, receive optical fiber 2 and reference optical fiber 3 all respectively through corresponding fiber coupler---excitation fiber coupling mechanism, receiving fiber coupler and reference optical fiber coupling mechanism links, above-mentioned fiber coupler contains corresponding optical system-excite optical lens group 9 respectively, receive optical lens group 8 and reference optical lens 7, and the detector 17 that receives fluorescence signal in the fluorescence receiving trap is semiconductor silicon photodiodes (PIN), also is provided with an identical or close detector 16 of model parameter and also is silicon photoelectric diode in reference unit.Interface 14 carries out data processing in order to external computing machine, and C is external 24V direct supply socket.
As Fig. 1, Fig. 2, above-mentioned probe 27 is by comprising incident optical 1, leaded light detection fiber and shading detection cavity 6 two parts of receiving the fibre bundle formation of optical fiber 2 and reference optical fiber 3 and the joints of optical fibre 5 combinations are composed of a fixed connection, promptly an end has incident optical 1, receive the detection fiber bundle waterborne that optical fiber 2 and reference optical fiber 3 and the joints of optical fibre 5 constitute, above-mentioned incident optical 1 is arranged in its of the other end and receive optical fiber 2 as a branch of formation detection fiber 4 and be fixed on a shading and survey on the center pit of probe socket (lid) 22 of cavity under water, this shading survey cavity 6 can by probe socket 22 and under alternate with packing ring 23, the column chamber of the window shutter pattern of the similar shading that the fixing a plurality of sun-shading caps 24 of long bolt 25 are formed, promptly three long spiral shell 25 bars pass hole on packing ring 23 and the sun-shading cap 24 and are cemented in the inner bolt hole below the probe socket 22.
Consider extinction effect, as another embodiment, above-mentioned probe 27 also can be fixed the curved light trapping 26 of an ox horn shape cavity-ox horn again in the lower end of column chamber, as Fig. 2.Hang conveniently for entry, also on probe socket 22, be provided with suspension ring 21.
Above-mentioned incident optical 1, receive optical fiber 2 and reference optical fiber 3 and choose the fiber optic materials such as the quartz glass that can see through the corresponding light wave band, the optical cable that glass or plastics are formed, its corresponding optical fiber arrangement end face is Boulez as required, usually selection evenly arrange as incident optical, insert with the three beams group on the center of detecting light beam and receive optical fiber, as Fig. 3-Fig. 7.
When the present invention carries out the work of on-the-spot water area survey, only need also fastening on the corresponding optical cable end of probe on the above-mentioned probe screw-in cabinet, the other end places water to connect the 24V direct supply then, press 24V power switch and 5V power switch, start the relevant key on the single-chip microcomputer keyboard, the present invention can conveniently carry out work in real time.
Claims (3)
1, portable real time fibre-optic fluorophotometer, it has fluorescence excitation optics lens combination (9), trigger (12), the fluorescence excitation device that pulse xenon lamp (11) and xenon lamp power supply (13) thereof constitute, there is fluorescence to receive optical lens group (8), the fluorescence receiving trap that detector (17) constitutes, with corresponding measuring sonde (27), also have reference optical lens (7), reference unit and corresponding single-chip microcomputer (15) that another detector (16) constitutes, keyboard (19), nixie display (20), the control device that indicator (18) and working power and switch constitute, it is characterized in that probe (27) is the full fibre-optical probe that a underwater real-time is surveyed, the incident optical (1) that it links to each other with above-water host shell (10), receive optical fiber (2) and reference optical fiber (3) all respectively through corresponding fiber coupler---excitation fiber coupling mechanism, receiving fiber coupler and reference optical fiber coupling mechanism links, above-mentioned fiber coupler contains corresponding optical system respectively---excite optical lens group (9), receive optical lens group (8) and reference optical lens (7), and the detector (17) that receives fluorescence signal in the fluorescence receiving trap is a semiconductor silicon photodiode, and above-mentioned probe (27) is by comprising incident optical (1), and leaded light detection fiber and shading detection cavity (6) two parts of receiving the fibre bundle formation of optical fiber (2) and reference optical fiber (3) and the joints of optical fibre (5) combination are composed of a fixed connection.
2, fluorophotometer according to claim 1, it is characterized in that described shading survey cavity (6) by probe socket (22) and under alternate with packing ring (23), the column chamber that the fixing a plurality of sun-shading caps (24) of long bolt (25) are formed, promptly the hole passed on packing ring (23) and the sun-shading cap (24) of three long bolts (25) is cemented in the following inner bolt hole of probe socket (22).
3, fluorophotometer according to claim 2 is characterized in that the lower end of the column chamber of above-mentioned probe (27) is fixed the curved light trapping (26) of an ox horn shape cavity-ox horn again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011275480A CN1184466C (en) | 2001-10-12 | 2001-10-12 | Portable real time fibre-optic fluorophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011275480A CN1184466C (en) | 2001-10-12 | 2001-10-12 | Portable real time fibre-optic fluorophotometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1412544A CN1412544A (en) | 2003-04-23 |
| CN1184466C true CN1184466C (en) | 2005-01-12 |
Family
ID=4667489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011275480A Expired - Fee Related CN1184466C (en) | 2001-10-12 | 2001-10-12 | Portable real time fibre-optic fluorophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1184466C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328580C (en) * | 2004-12-02 | 2007-07-25 | 北京大学 | Testing method and device for luminescence performance of peripheral composite sample room of fluorescence spectrometer |
| CN101201322B (en) * | 2006-12-14 | 2011-05-18 | 上海通微分析技术有限公司 | Device with high sensitivity for detecting fluorescence |
| CN103162262A (en) * | 2013-02-26 | 2013-06-19 | 天津大学 | High energy controllable pulse type optical fiber light source |
| CN106053418B (en) * | 2016-07-26 | 2019-02-12 | 陕西正大环保科技有限公司 | Oil sensor in contactless water |
| DE102018212489A1 (en) * | 2018-07-26 | 2020-01-30 | Implen GmbH | Device for light spectroscopic analysis |
| CN108827926A (en) * | 2018-08-02 | 2018-11-16 | 深圳市水务科技有限公司 | A kind of water quality sensing probe and its water quality detection system |
-
2001
- 2001-10-12 CN CNB011275480A patent/CN1184466C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1412544A (en) | 2003-04-23 |
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