CN105699275A - Microparticle counting system using laser imaging and projection - Google Patents
Microparticle counting system using laser imaging and projection Download PDFInfo
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- CN105699275A CN105699275A CN201410686125.4A CN201410686125A CN105699275A CN 105699275 A CN105699275 A CN 105699275A CN 201410686125 A CN201410686125 A CN 201410686125A CN 105699275 A CN105699275 A CN 105699275A
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Abstract
Embodiments of the invention disclose a microparticle counting system using laser imaging and projection. Two laser measuring heads respectively located at an axis X and an axis Y are fixed or move along an axis Z along with a medium at a same rate, and laser and microparticles are relatively stationary, so errors caused by movement are avoided; projection of the axis X overlaps and superposes in the direction of the axis Y while projection of the axis Y also overlaps and superposes in the direction of the axis X; through usage of double laser measuring heads, positions of the microparticles can be analyzed and calculated by using software, errors caused by overlapped microparticles and superposed microparticles can be eliminated, so counting and microparticle sizes are more accurate; the detected medium is relatively stationary in a certain range since the laser measuring heads are fixed or move along with the detected medium at a same speed; and high-power stereoimaging of two directions enables further verification and analysis of scattering, overlapping and superposition to be realized and data to be more scientific and credible.
Description
Technical field
The present invention relates to number system field, particularly relate to the system that a kind of molecule utilizing laser imaging and projection counts。
Background technology
At present; what known laser particle count system adopted is single laser projection; the potential pulse that the shade being projected in opposite produces is utilized to be calculated particle size and counting; for molecule; easily produce scattering; the voltage produced is also unstable; simultaneously in single laser projection; the granule of a lot of projection overlaps can be reduced calculating; and some granules of connecting of projection also can extended grain diameter size; what original laser number system adopted is that laser is static, and the medium being loaded with molecule is flowing, causes the phenomenons such as projection distortion。
Summary of the invention
Embodiment of the present invention technical problem to be solved is in that, it is provided that a kind of medium motion, superposition and overlap can be avoided to bring error while, better improve precision, the system that the molecule utilizing laser imaging and projection that reaction is true more accurately counts。
The system that the described molecule utilizing laser imaging and projection counts, including the first lasing light emitter irradiated along X-direction and the second lasing light emitter irradiated along Y direction, described first lasing light emitter and the second lasing light emitter are connected with the wiring board in counting assembly and chip respectively, also include the regular passage along Z-direction, it is provided with molecule medium in described rule passage, described first lasing light emitter and the second lasing light emitter are fixed or move along with the media flow in rule passage, keep speed consistent。
Implement the embodiment of the present invention, have the advantages that
The present embodiment utilizes the system that the molecule of laser imaging and projection counts, and adopts X-axis and two laser testing heads of Y-axis can move along Z axis with medium same rate, laser and granule geo-stationary, it is to avoid motion brings error；Projection in X-axis, projection in the Y-axis direction has overlap and superposition, projection equally in the Y-axis direction also can have overlap and superposition in the X-axis direction, and after adopting bidifly shaven head measuring head, software can be utilized to be analyzed these particle position calculating, remove Algorithm for Overlapping Granule and superposition granule brings error, make counting and grain diameter more accurate, measured medium speed is within the specific limits, laser testing head is fixed or laser testing head and the synchronized movement of measured medium, it is static relatively, the three-dimensional imaging of the both direction of high multiple further verifies analysis to scattering and overlap with superposition, make data more scientific credible。
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation。
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail。
The embodiment of the present invention utilizes the system that the molecule of laser imaging and projection counts, including the first lasing light emitter 1 irradiated along X-direction and the second lasing light emitter 2 irradiated along Y direction, first lasing light emitter 1 and the second lasing light emitter 2 are connected with the wiring board in counting assembly and chip 3 respectively, also include the regular passage 4 along Z-direction, it is provided with molecule medium 5 in rule passage 4, measured medium speed is within the specific limits, laser testing head is fixed or laser testing head and the synchronized movement of measured medium, it is static relatively, keep speed consistent, reflect in chip by the electric current being reflected on corresponding surface under the irradiation of the first lasing light emitter and the second lasing light emitter by circuit, by corresponding computed in software, obtain particle size and counting, LASER Light Source moves along with media flow, keep speed consistent, the image of relative particle is static, eliminate motion motion blur phenomenon, counting and size are more accurate, adopt single LASER Light Source, overlap and the superposition of granule can be caused, and pass through two-dimensional imaging, and analyzed by computed in software, can effectively reject overlapping and superposition error, be particle size and quantity more accurate。
The present embodiment utilizes the system that the molecule of laser imaging and projection counts, and adopts X-axis and two laser testing heads of Y-axis can move along Z axis with medium same rate, laser and granule geo-stationary, it is to avoid motion brings error；Projection in X-axis, projection in the Y-axis direction has overlap and superposition, projection equally in the Y-axis direction also can have overlap and superposition in the X-axis direction, and after adopting bidifly shaven head measuring head, software can be utilized to be analyzed these particle position calculating, remove Algorithm for Overlapping Granule and superposition granule brings error, make counting and grain diameter more accurate, measured medium speed is within the specific limits, laser testing head is fixed or laser testing head and the synchronized movement of measured medium, it is static relatively, the three-dimensional imaging of the both direction of high multiple further verifies analysis to scattering and overlap with superposition, make data more scientific credible, double excitation measuring head, the defect reducing counting being prevented effectively from particle projection overlap and cause, the particle size being prevented effectively from particle projection superposition and cause misplaces big defect, the secondary software analysis after laser imaging, imaging carried out, reduce the error that both the above defect is brought further。
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the claims in the present invention with this, still belong to the scope that the present invention contains。
Claims (1)
1. the system that the molecule utilizing laser imaging and projection counts, it is characterized in that, including the first lasing light emitter irradiated along X-direction and the second lasing light emitter irradiated along Y direction, described first lasing light emitter and the second lasing light emitter are connected with the wiring board in counting assembly and chip respectively, also include the regular passage along Z-direction, it is provided with molecule medium in described rule passage, described first lasing light emitter and the second lasing light emitter are fixed or move along with the media flow in rule passage, keep speed consistent。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410686125.4A CN105699275A (en) | 2014-11-24 | 2014-11-24 | Microparticle counting system using laser imaging and projection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410686125.4A CN105699275A (en) | 2014-11-24 | 2014-11-24 | Microparticle counting system using laser imaging and projection |
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| CN105699275A true CN105699275A (en) | 2016-06-22 |
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| CN201410686125.4A Pending CN105699275A (en) | 2014-11-24 | 2014-11-24 | Microparticle counting system using laser imaging and projection |
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| JPS62293143A (en) * | 1986-06-12 | 1987-12-19 | Rion Co Ltd | Measuring instrument for corpuscle |
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| CN102175587A (en) * | 2010-12-31 | 2011-09-07 | 深圳市美思康电子有限公司 | Laser system for blood cell analysis, flow cell analysis and body fluid analysis |
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Application publication date: 20160622 |