CN209727784U - A kind of nursery stock root activity measuring device based on laser speckle - Google Patents
A kind of nursery stock root activity measuring device based on laser speckle Download PDFInfo
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- CN209727784U CN209727784U CN201920446020.XU CN201920446020U CN209727784U CN 209727784 U CN209727784 U CN 209727784U CN 201920446020 U CN201920446020 U CN 201920446020U CN 209727784 U CN209727784 U CN 209727784U
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- reflecting mirror
- laser
- splitting prism
- polarization splitting
- nursery stock
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Abstract
The nursery stock root activity measuring device based on laser speckle that the utility model discloses a kind of.It includes laser, polarization splitting prism, the first reflecting mirror, the second reflecting mirror, lens and camera；The laser, polarization splitting prism and the second reflecting mirror are sequentially coaxially arranged in an optical path, and first reflecting mirror, polarization splitting prism and lens are sequentially coaxially arranged in another optical path.All segment spaces integration of the utility model, avoids the displacement in space；The device measures the vigor of nursery stock new root by laser speckle microspur measurement method within the several seconds, so that traditional Root Morphology variation is judged to shorten within the several seconds from one month, while improving measurement accuracy.The shortcomings that optical path is simple, easy to operate, overcomes data acquisition cycle length, the low efficiency, low precision of typical measuring arrangements realizes intelligent, integration, high reliability, provides more accurate Motility Index for the evaluation of seedling quality.
Description
Technical field
The utility model relates to nursery stock root activity fields of measurement, and in particular to a kind of nursery stock root activity based on laser speckle
Measuring device.
Background technique
Seedling quality evaluation is one of the key problem of seedling quality regulation, precisely evaluates seedling quality, regulation nursery stock matter
Amount becomes the key technical problem of forestry industry.The evaluation of seedling quality at present is mainly according to height of seedling, ground diameter and root system situation
Equal morphological indexs, but morphological index only reflects the morphological feature of nursery stock, cannot illustrate the activity level of nursery stock completely.Root growth
Vigor is the root of hair ability being placed in nursery stock in the most suitable growth environment.It depends not only on the physiological status of nursery stock, and and seedling
The wooden morphological feature, tree species biological characteristics and the season of growth are closely related, and can preferably predict seedling vigor and the surrival rate of afforestation.
So root growth vigor is one of current evaluation most reliable method of seedling vigor.However the root growth vigor test side of standard
Method time-consuming is up to 28 days, and condition is stringent, and equipment is more, cannot quickly measure seedling vigor, and application is very restricted.
In order to realize the quick detection of seedling vigor, occur many new detection methods in recent years: such as electrical impedance method, heat
Poor analytic approach, infrared automatic moisture meter method, chlorophyll fluorescence method and electrical conductivity method etc., although mostly have the characteristics that it is quick,
Then it can only often reflect nursery stock aspect or the characteristic of certain several respect indirectly, still cannot achieve the fast accurate of seedling vigor
Evaluation.
Therefore realize that conservation culture is built in the evaluation of Pinus massoniana Seedlings morphological feature fast accurate using advanced technological means
If, Modern Forestry Construction has very important significance.
Utility model content
The purpose of this utility model is in view of the deficienciess of the prior art, providing a kind of nursery stock root based on laser speckle
Vigor measuring device.
To achieve the above object, the utility model provides a kind of nursery stock root activity measuring device based on laser speckle,
Including laser, polarization splitting prism, the first reflecting mirror, the second reflecting mirror, lens and camera；The laser, polarization spectro
Prism and the second reflecting mirror are sequentially coaxially arranged in an optical path, first reflecting mirror, polarization splitting prism and lens according to
Secondary to be co-axially located in another optical path, the light beam that the laser issues is divided into through polarization splitting prism penetrates two beams, two light beams
The first reflecting mirror and the second reflecting mirror are reflected back by the first reflecting mirror of directive and the second reflecting mirror, the polarization splitting prism respectively
Light beam directive lens, two light beams that the lens reflect polarization splitting prism be adjusted to collimated light beam output, the phase
Machine and two collimated light beams are equipped with angle.
Further, the angle is 45 °.
Further, the laser, polarization splitting prism and the second reflecting mirror are coaxially disposed along the vertical direction.
Further, first reflecting mirror, polarization splitting prism and lens are coaxially disposed in the horizontal direction.
Further, the camera is CCD camera.
It further, further include shell and framework, the laser, polarization splitting prism, the first reflecting mirror, the second reflection
Mirror, lens and camera are mounted in shell by framework, and detection mouth is equipped on the shell of two collimated light beam direction of illuminations.
The utility model has the advantages that all segment spaces integration of the utility model, avoids the displacement in space；By by laser
Device, polarization splitting prism, the second reflecting mirror are sequentially coaxially placed in an optical path, are polarizing reflective prism on another Zhi Guanglu
The first reflecting mirror of two sides coaxial placement and lens；Angle between CCD camera and illuminating bundle is 45 °, and the device is by swashing
Light speckle microspur measurement method measures the vigor of nursery stock new root within the several seconds, thus traditional Root Morphology variation judge from
It shortens within the several seconds within one month, while improving measurement accuracy.Optical path is simple, easy to operate, overcomes typical measuring arrangements
Data acquisition cycle length, low efficiency, low precision the shortcomings that, realize intelligent, integration, high reliability, be seedling quality
Evaluation provides more accurate Motility Index.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the nursery stock root activity measuring device based on laser speckle.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, the present embodiment is with the utility model
Implemented under premised on technical solution, it should be understood that these embodiments are merely to illustrate the utility model rather than limit this reality
With novel range.
As shown in Figure 1, the utility model embodiment provides a kind of nursery stock root activity measuring device based on laser speckle,
The device includes laser 1, polarization splitting prism 2, the first reflecting mirror 3, the second reflecting mirror 4, lens 5 and camera 6.Wherein, swash
Light device 1, polarization splitting prism 2 and the second reflecting mirror 4 are sequentially coaxially arranged in an optical path, the first reflecting mirror 3, polarization spectro
Prism 2 and lens 5 are sequentially coaxially arranged in another optical path.Wherein, laser 1 is for issuing light beam 11, the light beam 11
It images on polarization splitting prism 2, light beam 11 is divided into light beam 12 and light beam 13 by deflection Amici prism, light beam 12 and light beam 13 divide
Other directive the first reflecting mirror 3 and the second reflecting mirror 4.Light beam 12 and light beam 13 are anti-through the first reflecting mirror 3 and the second reflecting mirror 4 respectively
After penetrating, it is respectively formed the light beam 14 and light beam 15 of directive polarization splitting prism 2, the shape after the reflection of polarization splitting prism 2 of light beam 15
At light beam 16, the direction of light beam 16 and light beam 14 directive prism 4 together, but light beam 14 and light beam 15 and not parallel, lens 5 will be inclined
Two light beams that vibration Amici prism 2 projects are adjusted to parallel with the axis of the first reflecting mirror 3, polarization splitting prism 2 and lens 5
Light beam output, two collimated light beams are radiated at detected nursery stock root 7, and camera 6 and two collimated light beams are equipped with angle α, should
Angle α is preferably 45 °.Camera 6 takes pictures to illuminated nursery stock root 7, the speckle field generated by camera shooting, in turn
Nursery stock root activity can be measured.The utility model embodiment further includes that shell and framework is not shown in the figure, laser 1, polarization point
Light prism 2, the first reflecting mirror 3, the second reflecting mirror 4, lens 5 and camera 6 are mounted in shell by framework, to make its stabilization
The position for being maintained at setting, on the shell of two collimated light beam direction of illuminations be equipped with detection mouth.
As mode is preferable to provide, along the vertical direction coaxially by laser 1, polarization splitting prism 2 and the second reflecting mirror 4
Setting.First reflecting mirror 3, polarization splitting prism 2 and lens 5 are coaxially disposed in the horizontal direction.At this point, two directional lights of output
Beam is projected from device lateral, and detection mouth is arranged in side, convenient for the root 7 of nursery stock is placed on detection with the state of growth
It is detected at mouthful.Camera 6 preferably uses CCD camera, and other cameras, such as COMS camera can also be used.
In conclusion all segment spaces integration of the utility model, avoids the displacement in space；By by laser
Device, polarization splitting prism, the second reflecting mirror are sequentially coaxially placed in an optical path, are polarizing reflective prism on another Zhi Guanglu
The first reflecting mirror of two sides coaxial placement and lens；Angle between CCD camera and illuminating bundle is 45 °, and the device is by swashing
Light speckle microspur measurement method measures the vigor of nursery stock new root within the several seconds, thus traditional Root Morphology variation judge from
It shortens within the several seconds within one month, while improving measurement accuracy.Optical path is simple, easy to operate, overcomes typical measuring arrangements
Data acquisition cycle length, low efficiency, low precision the shortcomings that, realize intelligent, integration, high reliability, be seedling quality
Evaluation provides more accurate Motility Index.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, other parts not specifically described belong to the prior art or common knowledge.The utility model principle is not being departed from
Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of nursery stock root activity measuring device based on laser speckle, which is characterized in that including laser, polarization spectro rib
Mirror, the first reflecting mirror, the second reflecting mirror, lens and camera；The laser, polarization splitting prism and the second reflecting mirror are successively same
Axis is arranged in an optical path, and first reflecting mirror, polarization splitting prism and lens are sequentially coaxially arranged in another optical path,
The light beam that the laser issues is divided into through polarization splitting prism penetrates two beams, and two light beams distinguish the first reflecting mirror of directive and second
Reflecting mirror, the light beam directive lens that the first reflecting mirror and the second reflecting mirror are reflected back by the polarization splitting prism, the lens
Two light beams that polarization splitting prism reflects are adjusted to collimated light beam output, the camera and two collimated light beams are equipped with folder
Angle.
2. the nursery stock root activity measuring device according to claim 1 based on laser speckle, which is characterized in that the angle
It is 45 °.
3. the nursery stock root activity measuring device according to claim 1 based on laser speckle, which is characterized in that the laser
Device, polarization splitting prism and the second reflecting mirror are coaxially disposed along the vertical direction.
4. the nursery stock root activity measuring device according to claim 3 based on laser speckle, which is characterized in that described first
Reflecting mirror, polarization splitting prism and lens are coaxially disposed in the horizontal direction.
5. the nursery stock root activity measuring device according to claim 1 based on laser speckle, which is characterized in that the camera
For CCD camera.
6. the nursery stock root activity measuring device according to claim 1 based on laser speckle, which is characterized in that further include shell
Body and framework, the laser, polarization splitting prism, the first reflecting mirror, the second reflecting mirror, lens and camera are installed by framework
In shell, detection mouth is equipped on the shell of two collimated light beam direction of illuminations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446020.XU CN209727784U (en) | 2019-04-03 | 2019-04-03 | A kind of nursery stock root activity measuring device based on laser speckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446020.XU CN209727784U (en) | 2019-04-03 | 2019-04-03 | A kind of nursery stock root activity measuring device based on laser speckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209727784U true CN209727784U (en) | 2019-12-03 |
Family
ID=68690131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920446020.XU Expired - Fee Related CN209727784U (en) | 2019-04-03 | 2019-04-03 | A kind of nursery stock root activity measuring device based on laser speckle |
Country Status (1)
| Country | Link |
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| CN (1) | CN209727784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112791A (en) * | 2021-11-16 | 2022-03-01 | 广州市元奥仪器有限公司 | Portable double-optical-path schlieren instrument |
-
2019
- 2019-04-03 CN CN201920446020.XU patent/CN209727784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112791A (en) * | 2021-11-16 | 2022-03-01 | 广州市元奥仪器有限公司 | Portable double-optical-path schlieren instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200628 Address after: Chen CI Cun Guangling Shatou 225000 area in Jiangsu city of Yangzhou Province Patentee after: YANGZHOU YIYANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 159 210037 Patentee before: NANJING FORESTRY University |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 Termination date: 20210403 |