CN107589095A - Full angle polarizes phase function measuring system - Google Patents
Full angle polarizes phase function measuring system Download PDFInfo
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- CN107589095A CN107589095A CN201711005650.5A CN201711005650A CN107589095A CN 107589095 A CN107589095 A CN 107589095A CN 201711005650 A CN201711005650 A CN 201711005650A CN 107589095 A CN107589095 A CN 107589095A
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- 230000003287 optical effect Effects 0.000 claims abstract description 83
- 230000010287 polarization Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000011358 absorbing material Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 238000000711 polarimetry Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 7
- 230000009897 systematic effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
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Abstract
The invention discloses a kind of full angle to polarize phase function measuring system, including sample well units, incident light unit, outgoing light unit and optical detecting unit；The incident light unit and outgoing light unit stretch into sample well units, the optical detecting unit is arranged on sample well units, sample well units are followed to rotate, the light that outgoing light unit is sent is imported in the sample water body in sample well units, transmitted light is exported by being emitted light unit, scattering light is received by optical detecting unit；Detection angle and transmitted light path angle are changed by rotary sample pool unit, obtain the scattered light intensity of different directions；Again by adjusting the polarization angle of incident light unit and optical detecting unit, the luminous intensity in detection different polarization direction.Polarimetry component is introduced in the present invention, improves system use range；Use adjustable for height emergent light prism so that system can measure 0 180 ° of full angle scattering light.
Description
Technical field
The present invention relates to a kind of water body phase function measuring system, more particularly to a kind of full angle polarization phase function measurement system
System.
Background technology
The intensity and polarization characteristic of water body phase function are particularly significant for the biochemical characteristic for studying water body.However, mesh
Preceding common water body phase function measuring system can not measure polarization；Simultaneously as the reason that sensor blocks, existing measurement
System can only measure the scattered light intensity close to 180 °, and can not 180 ° of scattered light intensities of accurate measurement.Therefore, designing one kind can be
The system of 0-180 ° of full angle measurement water body polarization phase function is extremely important.
The content of the invention
Instant invention overcomes existing water body phase function measuring system can not measure 0 ° and 180 ° of region phase function characteristics and
The shortcomings that phase function polarization characteristic can not be measured, there is provided a kind of full angle polarizes phase function measuring system.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of full angle polarizes phase
Function measurement system, including sample well units, incident light unit, outgoing light unit and optical detecting unit；The incident light unit
Sample well units are stretched into outgoing light unit, the optical detecting unit is arranged on sample well units, follows sample well units to turn
Dynamic, the light that outgoing light unit is sent is imported in the sample water body in sample well units, and transmitted light is exported by being emitted light unit,
Scattering light is received by optical detecting unit；Detection angle and transmitted light path angle are changed by rotary sample pool unit, obtained different
The scattered light intensity in direction；Again by adjusting the polarization angle of incident light unit and optical detecting unit, detection different polarization direction
Luminous intensity；The light incidence point of incident light unit and the line of light eye point and the optical axis of sample well units of outgoing light unit exist
In same plane；Light incidence point is centrally located in the rotary shaft of sample well units with light eye point line.
Further, the sample well units include stepper motor turntable, sample cell；The sample cell is arranged on stepping
On motor rotating table；There is sample cell optical window, optical detecting unit is arranged on sample cell optics in the side wall of the sample cell
At window, the optical axis of optical detecting unit and the optical axis coincidence of sample cell optical window；Black light-absorbing material is scribbled inside sample cell；
Sample cell optical window is transparent material.
Further, the incident light unit is included in the laser being sequentially arranged in light path, the polarizer and incident light rib
Mirror；The laser that the axis of the polarizer and incident light prism is launched with laser overlaps.
Further, the incident light unit also includes the first optical path adjusting component, and the first optical path adjusting component includes swashing
Light device mounting bracket, supporting device, polarizer, beam expander, the first diaphragm, the first speculum, Inclination maneuver frame, translation adjustment frame,
First rotation adjustment frame, the first height adjustment frame, support extension bar and the first extension bar；Laser mounting bracket is installed on supporting device
On；Laser is installed on above laser mounting bracket；Support extension bar is installed on supporting device；Polarizer, the polarizer, expand
Device, diaphragm pass sequentially through the first extension bar and are connected, and their optical axis overlaps with laser light path, by supporting extension bar branch after being connected
Support is on supporting device.Speculum is installed on the first extension bar termination, and it is centrally located in laser emitting light path, the mirror of speculum
Face is horizontal by 45 ° of angles；Inclination maneuver frame, translation adjustment frame, the first rotation adjustment frame, the first height adjustment frame are pacified successively
Loaded on below speculum, their center is connected also on laser optical path, between them also by the first extension bar；Incident light rib
Mirror is installed on below the first height adjustment frame.
Further, the incident light prism is column prism, the upper surface of incident light prism and plane-parallel, incident
The lower surface of light prism is coated with semi-transparent semi-reflecting film horizontal by 45 ° of angles on the lower surface of incident light prism.
Further, the outgoing light unit includes emergent light prism and height adjusting apparatus；The emergent light prism and height
Degree adjusting apparatus is connected, and height of the emergent light prism in sample well units is adjusted by height adjusting apparatus.
Further, the outgoing light unit also includes the second optical path adjusting component；The second optical path adjusting component bag
Include the second rotation adjustment frame, the second height adjustment frame, the second speculum, light collector, the second extension bar；Second extension bar and height
Adjustment frame is connected, and light collector is installed on the second extension bar；Second speculum is installed on the second extension bar termination；Second rotation is adjusted
Whole frame, the second height adjustment frame are installed on immediately below the second speculum successively, and emergent light prism is installed on the second height adjustment frame
On.
Further, the emergent light prism is column prism, and its lower end is V-shape biplane, away from sample well units
Rotary shaft side outgoing prism lower surface on be coated with reflectance coating, the upper surface of emergent light prism is inclined-plane, plate anti-reflection film.
Further, the optical detecting unit includes analyzer, photodetector, lens；Analyzer, lens, photoelectricity are visited
Survey that device is coaxial successively is arranged on sample cell optical window, and it is coaxial with sample cell optical window；Photodetector is positioned at saturating
In the image plane of rotation imaging shaft of the mirror to sample well units.
Further, the optical detecting unit also includes the 3rd optical path adjusting component, and the 3rd optical path adjusting component includes the
Two diaphragms and the 3rd extension bar；Second diaphragm is arranged between analyzer and lens, analyzer, the second diaphragm, lens, photodetection
Device is arranged on sample cell optical window by the 3rd extension bar.
The beneficial effects of the invention are as follows：Polarimetry component is introduced in phase function measuring system, improves system use
Scope；Incident light prism replaces traditional speculum using semi-transparent semi-reflecting lens, therefore system can measure existing method and can not connect
The 180 ° of scattering light received；Meanwhile use adjustable for height emergent light prism so that system can measure 0-180 ° of full angle scattering
Light.
Brief description of the drawings
Fig. 1 (a) is the light path principle front view of the embodiment of the present invention；Fig. 1 (b) is that the light path principle of the embodiment of the present invention is bowed
View；
Fig. 2 is the overall structure front view of the embodiment of the present invention；
Fig. 3 is 45 ° of views of overall structure of the embodiment of the present invention；
Fig. 4 is the sample well units front view of the embodiment of the present invention；
Fig. 5 is 45 ° of views of sample well units of the embodiment of the present invention；
Fig. 6 is the incident light unit front view of the embodiment of the present invention；
Fig. 7 is 45 ° of views of incident light unit of the embodiment of the present invention；
Fig. 8 (a) is the front view of the incident light prism of the embodiment of the present invention, and Fig. 8 (b) is the incident light of the embodiment of the present invention
The shaft side figure of prism；
Fig. 9 is the outgoing light unit front view of the embodiment of the present invention；
Figure 10 (a) is the front view of the emergent light prism of the embodiment of the present invention, and Figure 10 (b) is the outgoing of the embodiment of the present invention
The upward view of light prism；
Figure 11 is the optical detecting unit front view of the embodiment of the present invention；
Figure 12 is 45 ° of views of optical detecting unit of the embodiment of the present invention；
In figure：Sample well units 1, incident light unit 2, outgoing light unit 3, optical detecting unit 4, stepper motor turntable
101st, mounting seat 102, sample cell 103, laser 201, the polarizer 202, incident light prism 203, emergent light prism 301, height
Adjusting apparatus 302, analyzer 401, photodetector 402, lens 403, laser mounting bracket 501, supporting device 502, polarizer
503rd, beam expander 504, the first diaphragm 505, the first speculum 506, Inclination maneuver frame 507, translation adjustment frame 508, first rotate
Adjustment frame 509, the first height adjustment frame 510, support extension bar 511, second rotate adjustment frame 601, the second height adjustment frame 602,
Second speculum 603, light collector 604, the second extension bar 605, second diaphragm 701, the 3rd extension bar 702, incident light prism
Upper surface 2031, the lower surface 2032 of incident light prism, lower surface 3011, the upper surface of emergent light prism of outgoing prism
3012。
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1 (a), Fig. 1 (b), Fig. 2 and Fig. 3, the present invention provides a kind of full angle polarization phase function measuring system,
Including sample well units 1, incident light unit 2, outgoing light unit 3 and optical detecting unit 4；The incident light unit 2 and emergent light
Unit 3 stretches into sample well units 1, and the optical detecting unit 4 is arranged on sample well units 1, follows sample well units 1 to rotate,
The light that outgoing light unit 3 is sent is imported in the sample water body in sample well units 1, and transmitted light is exported by being emitted light unit 3,
Scattering light is received by optical detecting unit 4；Detection angle and transmitted light path angle are changed by rotary sample pool unit 1, obtained not
Equidirectional scattered light intensity；Again by adjusting the polarization angle of incident light unit 2 and optical detecting unit 4, different polarization is detected
The luminous intensity in direction.；The line of light incidence point and light eye point and sample cell optical axis are in the same plane；Light incidence point goes out with light
Exit point line is centrally located in the rotary shaft of sample cell.
As illustrated in figures 4-5, the sample well units 1 include stepper motor turntable 101, mounting seat 102 and sample cell
103；The mounting seat 102 is fixed on the top of stepper motor turntable 101, and it is centrally located at stepper motor turntable rotary shaft
On；Sample cell 103 is fixed on the top of mounting seat 102, and central shaft rotates overlapping of axles with stepper motor turntable 101；Sample cell
Optical window 104 is located at the side wall of sample cell 103, and its optical axis intersects with the rotary shaft of stepper motor turntable 101；Sample cell
Black light-absorbing material is scribbled inside 103；Sample cell optical window 104 is transparent material；When system works, stepper motor turntable
101 drive sample cells 103 and optical detecting unit 12 rotate, full angle detection scattered light intensity.
As shown in fig. 6-7, the incident light unit 2 includes laser 201, the polarizer 202, incident light prism 203 and the
One optical path adjusting device group；The polarizer 202 is located at the front of laser 201, and coaxial with laser, polarization direction can adjust；
The central shaft of incident light prism 203 is launched laser with laser 201 and overlapped；
In the embodiment of the present invention, the first optical path adjusting component includes laser mounting bracket 501, supporting device 502, polarizer
503rd, beam expander 504, the first diaphragm 505, the first speculum 506, Inclination maneuver frame 507, translation adjustment frame 508, first rotate
Adjustment frame 509, the first height adjustment frame 510, the support extension bar of extension bar 511 and first, common guarantee beam path alignment.Supporting device
502 are installed on the base of system；Laser mounting bracket 501 is installed on supporting device 502；Laser 201 is installed on laser
The top of device mounting bracket 501；Support extension bar 511 is installed on supporting device 502；Polarizer 503, the polarizer 202, beam expander 504,
Diaphragm 505 passes sequentially through the first extension bar and is connected, and their optical axis overlaps with the light path of laser 501, is connect after being connected by support
Bar 511 is supported on supporting device 502.Speculum 506 is installed on the termination of the first extension bar 512, and it is centrally located at laser 501 and gone out
Penetrate in light path, the minute surface of speculum 506 is horizontal by 45 ° of angles；Inclination maneuver frame 507, translation adjustment frame 508, first are revolved
Turn adjustment frame 509, the first height adjustment frame 510 is installed on the lower section of speculum 506 successively, pass through speculum 506, their center
Also it is connected on laser optical path, between them also by the first extension bar；Incident light prism 203 is installed on the first height adjustment frame
510 lower sections.As shown in Fig. 8 (a) and Fig. 8 (b), the incident light prism 203 is column prism, the upper surface of incident light prism
2031 and plane-parallel, the lower surface 2032 of incident light prism be coated with semi-transparent semi-reflecting film horizontal by 45 ° of angles.
As shown in figure 9, the outgoing light unit 3 includes emergent light prism 301, the light path of height adjusting apparatus 302 and second is adjusted
Save component；
In the embodiment of the present invention, the second optical path adjusting component includes the second rotation adjustment frame 601, the second height adjustment frame
602nd, the second speculum 603, light collector 604, the second extension bar 605；Second extension bar 605 is connected with height adjustment frame 302, light
Line collector 604 is installed on the second extension bar 605；Second speculum 603 is installed on the termination of the second extension bar 605；Second rotation is adjusted
Whole frame 601, the second height adjustment frame 602 are installed on immediately below the second speculum 603 successively, and its center on the same line, goes out
Light prism 301 is penetrated to be installed in the second height adjustment frame 602；Height adjusting apparatus 302 drives the second optical path adjusting component and outgoing
Light prism 301 moves up and down；When 0 ° of systematic survey nearby scatters, emergent light prism 301 is raised to incidence by height adjusting apparatus 302
Light prism 203 sends the top of laser optical path；During the scattering of systematic survey other angles, height adjusting apparatus 302 is by emergent light prism
301 outgoing luminous point is placed on laser optical path.
As shown in Figure 10 (a) and Figure 10 (b), the emergent light prism 301 is column prism, and its lower end is that " V " font is double
Plane, the lower surface 3011 away from the rotary shaft side emergent light prism of sample cell 103 are coated with reflectance coating.The upper table of emergent light prism
Face 3012 is inclined-plane, plates anti-reflection film.
The line of the light incidence point of incident light prism 203 and the light eye point of emergent light prism 301 and sample cell optical window
The optical axis of mouth 7 is in the same plane；The light incidence point of incident light prism 203 and the light eye point line of emergent light prism 301
It is centrally located in the rotary shaft of sample cell 103.
As depicted in figs. 11-12, the optical detecting unit 4 includes analyzer 401, photodetector 402, lens 403 and the
Three optical path adjusting components；
In the embodiment of the present invention, the 3rd optical path adjusting component includes the second diaphragm 701 and the 3rd extension bar 702；
Analyzer 401, the second diaphragm 701, lens 403, the coaxial arrangement successively of photodetector 402, pass through the 3rd extension bar
702 are fixed on sample cell optical window 104, and coaxial with sample cell optical window 104；Analyzer 401 receives specific inclined
Shake the scattering light in direction, and its polarization direction is adjustable；Photodetector 402 is located at lens 403 and rotates imaging shaft to sample cell 103
In image plane.
When system works, by the angle in 0-180 ° of adjustment stepper motor turntable 101, change detection angle；Every
The angle of polarization of the individual angular adjustment polarizer 202 and analyzer 401, light intensity is received using photodetector 402；Photodetector
402 gained light intensity datas and detection angle are received by PC, by from correction algorithm, with reference to angular characteristicses, correcting on PC
The 180 ° of influences of semi-transparent semi-reflecting lens 28 to luminous intensity measurement nearby, and the 0 ° of influence of transmission change in optical path length to luminous intensity measurement nearby；Knot
Close Jones matrix characteristic, the final full angle polarization phase function for obtaining water body.
Claims (10)
1. a kind of full angle polarizes phase function measuring system, it is characterised in that including sample well units (1), incident light unit
(2) light unit (3) and optical detecting unit (4) etc., are emitted；The incident light unit (2) and outgoing light unit (3) stretch into sample cell
Unit (1), the optical detecting unit (4) are arranged on sample well units (1), follow sample well units (1) to rotate, emergent light list
The light that first (3) are sent is imported in the sample water body in sample well units (1), is exported transmitted light by being emitted light unit (3), is dissipated
Light is penetrated to be received by optical detecting unit (4)；Detection angle and transmitted light path angle are changed by rotary sample pool unit (1), obtained
The scattered light intensity of different directions；Again by adjusting the polarization angle of incident light unit (2) and optical detecting unit (4), detection is not
With the luminous intensity of polarization direction；The line and sample of the light incidence point of incident light unit (2) and the light eye point of outgoing light unit (3)
The optical axis of product pool unit (1) is in the same plane；Light incidence point is centrally located at sample well units (1) with light eye point line
In rotary shaft.
2. full angle according to claim 1 polarizes phase function measuring system, it is characterised in that the sample well units
(1) stepper motor turntable (101), sample cell (103) are included；The sample cell (103) is arranged on stepper motor turntable
(101) on；There is sample cell optical window (104), optical detecting unit (4) is arranged on sample in the side wall of the sample cell (103)
Product pond optical window (104) place, the optical axis of optical detecting unit (4) and the optical axis coincidence of sample cell optical window (104)；Sample cell
(103) it is internal to scribble black light-absorbing material；Sample cell optical window (104) is transparent material.
3. full angle according to claim 1 polarizes phase function measuring system, it is characterised in that the incident light unit
(2) it is included in the laser (201) being sequentially arranged in light path, the polarizer (202) and incident light prism (203)；The polarizer (202)
Overlapped with the axis of incident light prism (203) with the laser that laser (201) is launched.
4. full angle according to claim 3 polarizes phase function measuring system, it is characterised in that the incident light unit
(2) the first optical path adjusting component is also included, the first optical path adjusting component includes laser mounting bracket (501), supporting device
(502), polarizer (503), beam expander (504), the first diaphragm (505), the first speculum (506), Inclination maneuver frame (507),
Translation adjustment frame (508), the first rotation adjustment frame (509), the first height adjustment frame (510), support extension bar (511) and first connect
Bar；Laser mounting bracket (501) is installed on supporting device (502)；Laser (201) is installed on laser mounting bracket (501)
Top；Support extension bar (511) is installed on supporting device (502)；Polarizer (503), the polarizer (202), beam expander (504),
Diaphragm (505) passes sequentially through the first extension bar and is connected, and their optical axis overlaps with laser (501) light path, passes through branch after being connected
Support extension bar (511) is supported on supporting device (502).Speculum (506) is installed on the first extension bar (512) termination, its centre bit
In on laser (501) emitting light path, the minute surface of speculum (506) is horizontal by 45 ° of angles；Inclination maneuver frame (507), put down
Adjustment frame (508), the first rotation adjustment frame (509), the first height adjustment frame (510) is moved to be installed on successively under speculum (506)
Side, their center are connected also on laser optical path, between them also by the first extension bar；Incident light prism (203) is installed
Below the first height adjustment frame (510).
5. the full angle polarization phase function measuring system according to claim 3 or 4, it is characterised in that the incident light rib
Mirror (203) is column prism, the upper surface (2031) of incident light prism and plane-parallel, the lower surface of incident light prism
(2032) horizontal by 45 ° of angles, semi-transparent semi-reflecting film is coated with the lower surface (2032) of incident light prism.
6. full angle according to claim 1 polarizes phase function measuring system, it is characterised in that the outgoing light unit
(3) emergent light prism (301) and height adjusting apparatus (302) are included；The emergent light prism (301) and height adjusting apparatus (302)
It is connected, height of the emergent light prism (301) in sample well units (1) is adjusted by height adjusting apparatus (302).
7. full angle according to claim 6 polarizes phase function measuring system, it is characterised in that the outgoing light unit
(3) the second optical path adjusting component is also included；The second optical path adjusting component includes the second rotation adjustment frame (601), second high
Spend adjustment frame (602), the second speculum (603), light collector (604), the second extension bar (605)；Second extension bar (605) and height
Spend adjustment frame (302) to be connected, light collector (604) is installed on the second extension bar (605)；Second speculum (603) is installed on
Second extension bar (605) termination；Second rotation adjustment frame (601), the second height adjustment frame (602) are installed on the second speculum successively
(603) immediately below, emergent light prism (301) is installed in the second height adjustment frame (602).
8. the full angle polarization phase function measuring system according to claim 6 or 7, it is characterised in that the emergent light rib
Mirror (301) is column prism, and its lower end is V-shape biplane, the outgoing prism of the rotary shaft side away from sample well units (1)
Lower surface (3011) on be coated with reflectance coating, the upper surface (3012) of emergent light prism is inclined-plane, plate anti-reflection film.
9. full angle according to claim 1 polarizes phase function measuring system, it is characterised in that the optical detecting unit
(4) analyzer (401), photodetector (402), lens (403) are included；Analyzer (401), lens (403), photodetector
(402) it is coaxial successively to be arranged on sample cell optical window (104) and coaxial with sample cell optical window (104)；Photoelectricity is visited
Device (402) is surveyed to be located in the image plane of rotation imaging shaft of the lens (403) to sample well units (1).
10. full angle according to claim 9 polarizes phase function measuring system, it is characterised in that the optical detecting unit
(4) the 3rd optical path adjusting component is also included, the 3rd optical path adjusting component includes the second diaphragm (701) and the 3rd extension bar (702)；The
Two diaphragms (701) are arranged between analyzer (401) and lens (403), analyzer (401), the second diaphragm (701), lens
(403), photodetector (402) is arranged on sample cell optical window (104) by the 3rd extension bar (702).
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| CN201711005650.5A CN107589095A (en) | 2017-10-25 | 2017-10-25 | Full angle polarizes phase function measuring system |
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| CN108918095A (en) * | 2018-06-12 | 2018-11-30 | 同济大学 | A kind of desktop type Soft X-Ray Region optical element device for testing polarization |
| CN113702335A (en) * | 2021-08-30 | 2021-11-26 | 自然资源部第二海洋研究所 | Underwater original body scattering measuring instrument |
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