CN106770105A - A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water - Google Patents
A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water Download PDFInfo
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- CN106770105A CN106770105A CN201611115447.9A CN201611115447A CN106770105A CN 106770105 A CN106770105 A CN 106770105A CN 201611115447 A CN201611115447 A CN 201611115447A CN 106770105 A CN106770105 A CN 106770105A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
Detection means and its optics the present invention relates to a kind of Chlorophyll-a Content in Sea-Water assemble base.Optics assembling base includes pedestal, the receiving channel for accommodating fluorescence reception device and the transmission channel for accommodating light source are offered on pedestal, receiving channel has the bottom surface in pedestal and vertically receiving port directed downwardly, transmission channel has the emission port for being in pedestal bottom surface and being obliquely installed, and the incline direction of emission port is gradually inclined near the direction of receiving port from top to bottom on top-down light emission direction.When in use, light source can just be irradiated to the seawater below fluorescence reception device, on the one hand the integrated of whole device is realized, on the other hand, light source and fluorescence reception device are flushed in the horizontal direction, so light source will not block the visual field of the receiving terminal of fluorescence reception device, so that the receivable seawater scope increase of fluorescence reception device, also just improves the efficiency of fluorescent collecting.
Description
Technical field
Detection means and its optics the present invention relates to a kind of Chlorophyll-a Content in Sea-Water assemble base.
Background technology
Day with land resources is becoming tight, while exploitation marine resources bring great economic benefit, marine ecology
Environmental problem is also on the rise, and ocean water pollution issue has become one of significant problem that the whole world faces.Water eutrophication
Change is the outstanding behaviours of water pollution, and chlorophyll-a concentration detection is to evaluate ocean water quality nutrient laden and prediction Disaster And Prevention Measures of Red Tides most
Important parameter.At present, on-line checking seawater chlorophyll-a concentration most efficient method is fluorescence detection, i.e., by centre wavelength
For the LED of 470nm excites chlorophyll a in phytoplankton body to send fluorescence signal, then between measure by way of fluorescence signal
Connect the change of tracking water nutrition degree.But the fluorescence signal for inspiring is trace signal, is vulnerable to the bias lights such as ambient light
Influence and be submerged under strong noise background, the detection method such as traditional analog, amplification, filtering that the country uses has detected such signal
Through extremely difficult.
The A of Chinese patent literature CN 105548518 disclose a kind of ocean water quality based on Miniature Buoy and supervise online for a long time
Device, including buoy float, multi-parameter water quality sensor and sampling pool are surveyed, the buoy float top is provided with meteorological equipment erection tower,
Water quality sensor is arranged on sampling pool by fixed mount, and sensor probe is located inside sampling pool, and sampling pool is by fixing
Frame is arranged under the meteorological equipment erection tower on buoy float top；Sampling pool inwall is provided with uviol lamp, and described uviol lamp is set
At least three groups, 120 ° of every group of interval arrangement, every group comprising multiple uviol lamps, and every group of uviol lamp is from top to bottom along sampling pool
Wall is configured；And sampling pool is respectively equipped with the drainpipe of the water inlet pipe with peristaltic pump and provided with electromagnetic valve, the peristaltic pump enters
The mouth of a river communicates with seawater.During measurement, by peristaltic pump pumps seawater to measuring cell in, and enable water quality instrument probe part complete
In the seawater, after stabilization, each uviol lamp lights, and excites chlorophyll a in phytoplankton body to send fluorescence signal, then water quality for submergence
The recipient collection fluorescence signal of sensor is measured.But water quality sensor and uviol lamp are difference positions in the monitoring device
In on the top and pool wall of sampling pool, and need the presence of low head high between water quality sensor and uviol lamp, to accommodate work
To monitor the seawater of sample, so the monitoring device has that light channel structure excessively disperses low with fluorescent collecting efficiency, its
In the former because water quality sensor and ultraviolet light in sampling pool four dissipate distribution and cause, such that monitoring device
Light channel structure layout it is not compact, so as to cause the wiring of whole monitoring device it is anti-it is waterborne need to pay it is larger into
This, the volume of whole monitoring device also will appear from excessive problem, further increase manufacture, the cost installed and safeguard；The latter
Because the absorption of the light test sample sent from sampling pool surrounding, the luminance signal reached below water quality sensor will be great
Weaken, the fluorescence signal intensity for also allowing for sample immediately below water quality sensor will be weakened, so as to cause fluorescence signal acquisition
Efficiency reduction problem, and limited by the pool wall of sampling pool surrounding, the vision range of water quality sensor is limited, also allows for
The receptible fluorescence signal of water quality sensor institute is limited, reduce further the collecting efficiency to fluorescence signal.Further, since small
Type buoy small volume, it is closer apart from sea, about 1 meter or so, the monitoring device is also allowed in test, it is necessary to seawater is taken out
Measured on to sea so that seawater leaves original position, so as to cause the accuracy reduction of monitoring, cause seawater chlorophyll a
Content error in judgement.
In addition, the fluorescence signal for inspiring is trace signal, is vulnerable to the influence of the bias lights such as ambient light and is submerged in
Under strong noise background, unstable properties, what this light was usually present in surface water, and traditional chlorophyll detector is required for
Light shield.
The content of the invention
The present invention is intended to provide a kind of detection means of seawater original position Chlorophyll-a Content assembles base with optics, it is intended to solve
Certainly the light channel structure distribution of monitoring device is excessively loose in the prior art, phosphor collection inefficient, it is impossible to for long-term inspection in situ
The problems such as survey, stability difference.In addition, containing present invention also offers a kind of seawater chlorophyll a based on above-mentioned optics assembling base
The detection means of amount.
In order to solve the above technical problems, the detection means of Chlorophyll-a Content in Sea-Water assembles base with optics in the present invention
Technical scheme is as follows：
The detection means of Chlorophyll-a Content in Sea-Water optics assembles base, including pedestal, is offered for accommodating fluorescence on pedestal
The receiving channel of receiving device and the transmission channel for accommodating light source, receiving channel have the bottom surface in pedestal and vertical court
Under receiving port, transmission channel has in pedestal bottom surface and the emission port that is obliquely installed, the incline direction of emission port be from
Gradually inclined near the direction of receiving port from top to bottom on light emission direction under above.
The angle of inclination of emission port is 30 °~45 °.
Emission port has two or more and is spaced apart around receiving port.
Projection of each emission port on pedestal bottom surface is relative to receiving port radially.
Receiving channel and/or transmission channel are throat through hole narrow in the middle and wide at both ends, on the two ends wide path of throat through hole
It is the light hole section of insertion of being slid axially for light source or fluorescence reception device to be provided with the narrow footpath section in internal thread, middle part.
The technical scheme of the detection means of Chlorophyll-a Content in Sea-Water is as follows in the present invention：
The detection means of Chlorophyll-a Content in Sea-Water, including housing and its detection circuit module of interior setting, it is characterised in that shell
The bottom of body is provided with excitation source and fluorescence reception device, and excitation source and fluorescence reception device are arranged on optics and assemble base
On, optics assembling base includes pedestal, receiving channel for accommodating fluorescence reception device is offered on pedestal and for accommodating
The transmission channel of light source, receiving channel have in pedestal bottom surface and vertically receiving port directed downwardly, transmission channel have be in
Pedestal bottom surface and the emission port being obliquely installed, the incline direction of emission port be on top-down light emission direction gradually on to
It is lower to be inclined near the direction of receiving port.
The angle of inclination of emission port is 30 °~45 °.
Emission port has two or more and is spaced apart around receiving port, and projection of each emission port on pedestal bottom surface is relative
In receiving port radially.
Receiving channel and/or transmission channel are throat through hole narrow in the middle and wide at both ends, on the two ends wide path of throat through hole
It is the light hole section of insertion of being slid axially for light source or fluorescence reception device to be provided with the narrow footpath section in internal thread, middle part.
The bottom of apparatus main body is provided with the optical filtering camera lens being located at below emission port and receiving port, the lower section of optical filtering camera lens
Lens bruss is provided with, lens bruss is assemblied on apparatus main body by vertically extending shaft swing, and the company of transmission in rotating shaft
It is connected to motor.
Narrow band pass filter each is installed in the emission port and receiving port, narrow band pass filter is in exciting light in emission port
Source lower section, narrow band pass filter is in fluorescence reception device lower section in receiving port.
The lens below narrow-band-filter eyeglass are provided with receiving port.
Optical glass is provided with below optics assembling base, lens bruss is provided with below optical glass, lens bruss leads to
Cross vertically extending shaft swing to be assemblied on optics assembling base, and the drive in housing is connected with rotating shaft
Dynamic motor.
The temp probe stretched out from housing lower section is also associated with the detection circuit module.
Excitation source and fluorescence reception device are integrated on the optics of device body bottom assembling base in the present invention, light source
It is obliquely installed on optics assembling base, so as to the light of light source is projected correct towards under the receiving terminal of fluorescence reception device
Side, so when in use, light source can just be irradiated to the seawater below fluorescence reception device, on the one hand eliminate light source and glimmering
Light receiving element realizes the integrated of whole device in the drop of above-below direction, solves the light of monitoring device in the prior art
Line structure is distributed excessively loose problem；On the other hand, light source and fluorescence reception device are flushed in the horizontal direction, and such light source is not
The visual field of the receiving terminal of fluorescence reception device can be blocked, the vision range increase of fluorescence reception device is also allowed for, so that
The receivable seawater scope increase of fluorescence reception device, also just improves the efficiency of fluorescent collecting.
Brief description of the drawings
Fig. 1 is the structural representation of detection means in the present invention；
Fig. 2 is the upward view of Fig. 1；
Fig. 3 is the dimensional structure diagram of lens mount in Fig. 1；
Fig. 4 is upward view of the detection means after removal end cap and optics assembling base in Fig. 1；
Fig. 5 is the stereo appearance figure of detection means in Fig. 1.
In figure：Apparatus main body 1, light source 2, the preposition interference filter eyeglass 3 of light source, fluorescence reception lens 4 receive interference filter
Eyeglass 4, optical glass 6, temp probe 7, watertight first 8, it is anti-strike the post, end cap 10, retainer ring 11, housing 12, top cover 13, optics dress
With base 14, LED sleeves 15, lens sleeve 16, back tightening nut 17, gland 18, mounting seat 19, motor cabinet 20, shaft coupling 21 is touched
Piece 22, rotating shaft 23, motor 24, lens bruss 25, compressing tablet 26, stator 27, installing plate 28, adapter ring 29.
Specific embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the embodiment in the present invention and the feature in embodiment can be mutually combined.
The embodiment 1 of the detection means of Chlorophyll-a Content in Sea-Water in the present invention：As depicted in figs. 1 and 2, the detection means
Apparatus main body 1 including tubular, the main top cover 13 fixed by the housing 12 of tubular and its top of apparatus main body 1 is constituted.Housing
The optics for being connected with plate-like by retainer ring 11 in 12 lower port of apparatus main body 1 assembles base 14, as shown in figure 3, optics
Assembling base 14 includes discoidal pedestal, receiving channel for accommodating fluorescence reception device is offered on pedestal and for holding
Receive the transmission channel of light source, receiving channel has the bottom surface in pedestal and vertically receiving port directed downwardly, and transmission channel has place
In pedestal bottom surface and the emission port that is obliquely installed, the incline direction of emission port is gradually by upper on top-down light emission direction
Inclined near the direction of receiving port downwards.Emission port has multiple and is spaced apart around receiving port, and each emission port is at pedestal bottom
Projection on face is relative to receiving port radially.The angle of inclination of each emission port is 30 °.Receiving channel and transmission channel are
Throat through hole narrow in the middle and wide at both ends, the two ends wide path of throat through hole be provided with internal thread, the narrow footpath section in middle part be for light source or
Fluorescence reception device slides axially the light hole section of insertion.
2 points of light source is two kinds, and a kind of is the LED light source of launch wavelength 470nm, and it is mainly used in exciting Determination of Chlorophyll In Seawater
a；Another LED light source of launch wavelength 880nm, its mainly for detection of seawater turbidity.Each light source 2 and transmission channel one
One is correspondingly arranged, but same type of light source 2 is set relative to receiving channel radial symmetric, i.e., light source 2 of the same race is assembled in optics
The paired distribution of radial symmetric on base 14.Light source 2 is slided and is inserted into the light hole section of receiving channel, the luminous end court of light source 2
Under, the terminals of light source 2 are top-loaded with the LED sleeves 15 in the upper hole section for being threaded in transmission channel, with by LED sleeves 15
Light source 2 is fixed in transmission channel.Light source preposition interference of the top mounted in the lower section of light source 2 is provided with the lower hole section of transmission channel
Optical filter 3, the lower section of the preposition interferometric filter 3 of light source is top-loaded with the lens sleeve in the lower hole section for being threaded in transmission channel
16, the preposition interferometric filter 3 of light source is fixed in diversing lens with by lens sleeve 16.The preposition interferometric filter 3 of light source
One side towards light source 2 is convex surface, to cause that the light launched from light source 2 is sent out after being reflected through the preposition interferometric filter 3 of light source
It is directional light to dissipate, and scope is set with the cover for increasing light source 2.470nm excites LED and 800nm infrared excitation LED optical filters to be to be more than
Or equal to OD4 interferometric filters.
Fluorescence reception device is to slide the photodiode being inserted into the light hole section of receiving channel, the master of photodiode
It is used to receive the seawater fluorescent signals that excitation light path is excited.The photosensitive end of photodiode down, photodiode
Terminals are top-loaded with the back tightening nut 17 in the upper hole section for being threaded in receiving channel, and back tightening nut 17 is by photodiode top
Fasten in receiving channel.The reception below the photosensitive end for being located at photodiode is embedded with the lower hole section of receiving channel
Interference filter eyeglass 4, the lower section for receiving interference filter eyeglass 4 is provided with convex surface fluorescence reception lens 5 directed downwardly, so that in seawater
The received interference filter eyeglass 4 of fluorescence that chlorophyll a is inspired converges to the photosensitive end of photodiode after reflecting, increase photoelectricity
The range of receiving at the photosensitive end of diode.
The bottom surface of optics assembling base 14 is plane, and the opening of receiving port and emission port is in the plane.Optics is filled
Lower section with base 14 is covered with end cap 10, be convexly equipped with the top surface of end cap 10 be actively plugged in optics assembling base 14 in determine
Position post, the edge of end cap 10 is connected in optics and assembles on base 14 by attachment screw.The center of end cap 10 is embedded with and is located at
Bottom is assembled in optics in the opening of the optical glass 6 of optical glass 6 on the opening of receiving port and emission port, the receiving port and emission port
Region residing for 14 bases of seat is completely in the top surface of optical glass 6, so that optical glass 6 is in light source 2 and photodiode
Shielding protection formed below.
The lower section of end cap 10 is provided with laminating lens bruss 25 on its bottom surface, and lens bruss 25 includes shaft-like swing arm, pendulum
One end of arm is free projecting end, and the side compressing tablet 26 of free projecting end is fixedly clamped and has the brush body of sheet, with by brush body
Reciprocally swinging is cleaned with water to the bottom surface of end cap 10, removes the microorganism that the bottom surface of end cap 10 attaches；The other end of swing arm is connected with
One rotating shaft 23 for extending vertically, so that swing arm can carry out the swing of free projecting end around the rotating shaft 23, the lower end of rotating shaft 23 is in
Square is simultaneously installed on the end of swing arm, and is coaxially connected with the shaft end that the lower end of rotating shaft 23 passes and is pressed on swing arm bottom surface
On attachment screw, swing arm top pressure is fixed on the head of attachment screw the lower end of rotating shaft 23.The middle part of rotating shaft 23 is from end cap 10
A locating dowel in pass through, and the sealing that cooperation is slidingly sealed with the perforation in the locating dowel is embedded with the periphery at middle part
Circle.The upper end of rotating shaft 23 is stretched out from the top of optics assembling base 14, and the shaft end stretched out is connected with mounting seat in turn from bottom to top
19th, contact 22 and shaft coupling 21, wherein mounting seat 19 are fixed on optics assembling base 14, and two are provided with mounting seat 19 respectively
From the microswitch of the swing extreme position positioned at contact 22；One end of contact 22 is sleeved on rotating shaft 23 by positive rotation stop
On, the other end freely overhangs and is used to trigger microswitch；The shaft end of one end connection rotating shaft 23 of shaft coupling 21, other end connection
There is motor 24, so that motor 24 is connected in rotating shaft 23 by shaft coupling 21, and the motor 24 is
Micro machine in apparatus main body 1, the motor 24 is fixed in apparatus main body 1 by motor cabinet 20.Motor 24
Control to electrically connect by circuit with microswitch.Put with movable contact spring 22 and lens bruss 25 in the driving lower rotary shaft 23 of motor 24
It is dynamic, after the triggering microswitch of contact 22, the output torque commutation of motor 24, so that rotating shaft 23 is with movable contact spring 22 and camera lens
The backswing of brush 25, realization cleans operation with water to the round of end cap 10.
The lower section of end cap 10 be further fixed in marginal position it is anti-strike the post 9, anti-striking the post 9 has multiple and around optics
Glass 6 is uniform, and each is anti-, and strike the post 9 lower surface is in the lowest part of whole device, in case the other parts of locking apparatus are bottomed out, it is right
Device plays a part of protection.
Optics assembles the gland 18 being fixedly arranged above in apparatus main body 1 of base 14, and the top of gland 18 passes through L-shaped
Stator 27 be connected with the installing plate 28 in apparatus main body 1, PCB, installing plate 28 are installed on installing plate 28
Top be connected with FPGA module, the effect of FPGA module is to gather and process the fluorescence signal that photodiode is sensed,
I.e. the FPGA module is the detection circuit module in housing 12, and the detection circuit module can remove the influence of ambient light, this
Light is normally present in surface water.The temp probe 7 stretched out from below end cap is connected with the detection circuit module.
It is threaded with top cover 13 in the upper port of housing 12 of apparatus main body 1, top cover 13 connects centrally through adapter ring 29
Watertight first 8 is connected to, to realize that in-situ study is detected.
Detection means, can also be to detection data by turbid in addition to carrying out the content detection of chlorophyll a in the present embodiment
The influence of degree and temperature is repaired.Detection means is by measuring turbidity of sea water and then according to turbidity value and chlorophyll test value by real
Test founding mathematical models to be corrected, the wherein measuring method of turbidity is also emitting led irradiation seawater, so as chlorophyll
Photodiode receives afterwards, and wherein photodiode and the photodiode of measurement chlorophyll is same, excites seawater to produce
The fluorescence signal of chlorophyll a and the light source 2 of measurement turbidity of sea water use different transmission channel inner light sources 2.Temperature correction is mainly
A temperature sensor post is provided with optics assembling base 14, temperature and the direct mathematical modulo of chlorophyll are set up by measurement temperature
Type.
The process of measurement is first to survey chlorophyll content, and turbidity, rear measurement temperature, according to turbidity and temperature pair are then measured again
Chlorophyll test value is exported after measured value correction.
Specifically measuring process is：In the first step after electricity, 470nmLED excitation sources 2 irradiate sea after brush is swiped two weeks
Water, photodiode receives the fluorescence signal for exciting, and used as chlorophyll measured value, second, 470nmLED exciting lights are closed,
880nmLED excitation sources 2 irradiate seawater, and photodiode receives signal as turbidity measurement.3rd step closes 880nmLED
, PCB read temperature sensor temperature value, then by temperature value, turbidity value chlorophyll measured value is modified after by temperature value,
Turbidity value and chlorophyll-a concentration value are exported by 485 agreements.
A kind of device of seawater original position Chlorophyll-a Content detection is present embodiments provided, existing detection method spirit is solved
Sensitivity is low, and precision is not high, is influenceed by ambient light, and volume is heavy, temperature drift, the problems such as drift is big and optimization light path device, can
Quickly, stabilization, detects to Chlorophyll-a Content in Sea-Water in real time.It is adapted to the long-term of the online observation platforms such as oceanographic buoy, the station
Continuous carry monitoring.In light path design, using light source 2 and detector in 30 ° of layouts of angle, light path is on the one hand improved compact
Degree, on the other hand improves fluorescent collecting efficiency.Turbidity temperature correction is mainly water temperature is measured and passed through with turbidity
Modeling is corrected to seawater chlorophyll a, reduces measurement error.Window cleaning brush-system is mainly anti-halobios adhersion, drives
Motor 24 is connected with lens bruss 25 by rotating shaft 23, and sealing ring is set between rotating shaft 23 and perforation, and motor 24 is by fixing
The microswitch that platform both sides are set realizes rotating, and removing is attached to the microorganism in end window.Thus, the detection means is main
Advantage is：1st, compact conformation is simple, uses unique light path design to ensure maximum excitation fluorescence efficiency；2nd, device carries correction,
Cleaning brush, is adapted to the carry long-term in situ experiment of the marine monitoring systems such as oceanographic buoy, the station.
The embodiment 2 of the detection means of Chlorophyll-a Content in Sea-Water in the present invention：The present embodiment exists with the difference of embodiment 1
Assembling the light channel structure of base, i.e. optical system in optics mainly includes excitation light path and receiving light path, and excitation light path includes swashing
The LED of light emitting source 470nm, narrow band pass filter and lens are provided with the front portion of LED（Optical filter is with lens distance by imitative
Really calculate）.Receiving light path includes photodiode（Optical filter is drawn with lens distance by simulation calculation）, in photoelectricity two
The front portion of pole pipe is provided with narrow band pass filter and lens（Optical filter is drawn with lens distance by simulation calculation）, photodiode
Pin with detection circuit board be connected.LED is in 45° angle with photodiode, and on the one hand purpose improves light path compactness, another
Aspect improves fluorescent collecting efficiency.
The detection means of Chlorophyll-a Content in Sea-Water assembles the embodiment 1 of base with optics in the present invention：As shown in figure 3, light
Learning assembling base 14 includes discoidal pedestal, the receiving channel for accommodating fluorescence reception device is offered on pedestal and is used for
The transmission channel of light source is accommodated, receiving channel has the bottom surface in pedestal and vertically receiving port directed downwardly, and transmission channel has
In pedestal bottom surface and the emission port that is obliquely installed, the incline direction of emission port be on top-down light emission direction gradually by
It is upper to be inclined near the direction of receiving port downwards.Emission port has multiple and is spaced apart around receiving port, and each emission port is in pedestal
Projection on bottom surface is relative to receiving port radially.The angle of inclination of each emission port is 30 °.Receiving channel and transmission channel
It is throat through hole narrow in the middle and wide at both ends, it is to supply light source that the two ends wide path of throat through hole is provided with internal thread, the narrow footpath section in middle part
Or fluorescence reception device slides axially the light hole section of insertion.
The detection means of Chlorophyll-a Content in Sea-Water assembles the embodiment 2 of base with optics in the present invention：As shown in figure 3, light
Learning assembling base 14 includes discoidal pedestal, the receiving channel for accommodating fluorescence reception device is offered on pedestal and is used for
The transmission channel of light source is accommodated, receiving channel has the bottom surface in pedestal and vertically receiving port directed downwardly, and transmission channel has
In pedestal bottom surface and the emission port that is obliquely installed, the incline direction of emission port be on top-down light emission direction gradually by
It is upper to be inclined near the direction of receiving port downwards.Emission port has multiple and is spaced apart around receiving port, and each emission port is in pedestal
Projection on bottom surface is relative to receiving port radially.The angle of inclination of each emission port is 45 °.Receiving channel and transmission channel
It is throat through hole narrow in the middle and wide at both ends, it is to supply light source that the two ends wide path of throat through hole is provided with internal thread, the narrow footpath section in middle part
Or fluorescence reception device slides axially the light hole section of insertion.
The detection means of Chlorophyll-a Content in Sea-Water assembles the other embodiment of base with optics in the present invention：Emission port phase
Can also be 30 °~45 ° other arbitrarily angled or other angles for the angle of inclination of receiving port.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. the detection means of Chlorophyll-a Content in Sea-Water assembles base with optics, it is characterised in that including pedestal, opened up on pedestal
There are the receiving channel for accommodating fluorescence reception device and a transmission channel for accommodating excitation source, receiving channel has and is in
The bottom surface of pedestal and vertically receiving port directed downwardly, transmission channel have the emission port for being in pedestal bottom surface and being obliquely installed, transmitting
The incline direction of mouth is gradually inclined near the direction of receiving port from top to bottom on top-down light emission direction.
2. the detection means of Chlorophyll-a Content in Sea-Water according to claim 1 assembles base with optics, it is characterised in that
The angle of inclination of emission port is 30 °~45 °.
3. the detection means of Chlorophyll-a Content in Sea-Water according to claim 1 and 2 assembles base with optics, and its feature exists
In emission port has two or more and is spaced apart around receiving port.
4. the detection means of Chlorophyll-a Content in Sea-Water according to claim 3 assembles base with optics, it is characterised in that
Relative to receiving port radially, and launching light is converged at one for projection of each emission port on pedestal bottom surface, perpendicular to reception
Passage.
5. the detection means of Chlorophyll-a Content in Sea-Water according to claim 1 and 2 assembles base with optics, and its feature exists
In receiving channel and/or transmission channel are throat through hole narrow in the middle and wide at both ends, and the two ends wide path of throat through hole is provided with interior
The narrow footpath section in screw thread, middle part is the light hole section of insertion of being slid axially for light source or fluorescence reception device.
6. the detection means of Chlorophyll-a Content in Sea-Water, including housing and its detection circuit module of interior setting, it is characterised in that
The bottom of housing is provided with excitation source and fluorescence reception device, and excitation source and fluorescence reception device will installed in aforesaid right
Ask on the optics assembling base in 1 to 5 described in any one.
7. the detection means of Chlorophyll-a Content in Sea-Water according to claim 6, it is characterised in that the emission port and connect
Narrow band pass filter each is installed in closing in, narrow band pass filter is in excitation source lower section in emission port, arrowband filter in receiving port
Mating plate is in fluorescence reception device lower section.
8. the detection means of Chlorophyll-a Content in Sea-Water according to claim 7, it is characterised in that be provided with receiving port
Lens below narrow-band-filter eyeglass.
9. the detection means of Chlorophyll-a Content in Sea-Water according to claim 6, it is characterised in that optics assembling base
Lower section is provided with optical glass, and lens bruss is provided with below optical glass, and lens bruss is filled by vertically extending shaft swing
Fit on optics assembling base, and the motor in housing is connected with rotating shaft.
10. the detection means of Chlorophyll-a Content in Sea-Water according to claim 6, it is characterised in that the detection circuit mould
The temp probe stretched out from housing lower section is also associated with block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611115447.9A CN106770105A (en) | 2016-12-07 | 2016-12-07 | A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water |
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| CN201611115447.9A CN106770105A (en) | 2016-12-07 | 2016-12-07 | A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114518351A (en) * | 2022-03-24 | 2022-05-20 | 中国海洋大学 | Detection apparatus for target substance concentration in sea water |
| CN117451681A (en) * | 2023-11-09 | 2024-01-26 | 山东省科学院海洋仪器仪表研究所 | Fluorescent sensor applied to alkylbenzene monitoring |
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