CN107941711B - Multilayer medium polarization transmission characteristic experimental test and computer simulation verification method - Google Patents
Multilayer medium polarization transmission characteristic experimental test and computer simulation verification method Download PDFInfo
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Abstract
The invention relates to a method for testing the polarization transmission characteristic of multilayer medium and verifying the computer simulation, belonging to the field of polarization transmission detection, aiming at the non-uniform environment generated by the condition of multilayer medium, the invention adopts a multilayer medium simulation system in the test, establishes the parameters needed in the simulation system by testing the parameters such as optical thickness, grain diameter and the like in each environment simulation system, adopts a method of calculating recursion one by one, uses the emergent light simulated by the former environment simulation system as the incident light simulated by the latter environment simulation system, establishes the relation between the environment mediums of each layer, ensures that the test and the simulation are verified mutually, ensures that the polarization transmission characteristic can be possibly simulated by adopting the traditional Monte Carlo method under the non-uniform smoke medium environment, improves the accuracy of the test result, and can be verified theoretically, the application range of the polarization transmission detection is expanded.
Description
Technical Field
The invention relates to a verification method for testing polarization transmission characteristics of a multilayer medium and computer simulation, and belongs to the field of polarization transmission detection.
Background
Because the polarization dimension information which cannot be reflected by the intensity and the spectrum is added on the basis of the intensity imaging, the polarization imaging can obviously enhance the difference between a target and a background, increase the action distance under the environments of haze, smoke dust and the like, and become an effective means for solving the detection under the special environments of smoke and the like, so that the research on the polarization transmission characteristic in the specific medium has important research significance for the actual detection.
In recent years, with the wide application of polarization detection technology, the requirements for computer simulation of polarization transmission characteristics are increasing continuously, and the computer simulation method is used for guiding experimental tests and verifying the accuracy of the experimental tests. At present, due to controllability of experimental environments and maturity of a simulation calculation theory of uniform spherical particles, many researchers mostly study polarization transmission characteristics in a uniform medium environment, but in an actual test environment, due to combined action of multiple substances, the environment is often non-uniform, and the most common situation is that polarized light is detected through a multilayer medium, so that experimental tests of polarization transmission characteristics obtained in the multilayer medium environment cannot be verified by a traditional theory and simulation method.
Therefore, a verification method for testing polarization transmission characteristics of a multilayer medium and computer simulation is urgently needed for the heterogeneous environment of the multilayer medium.
Disclosure of Invention
In order to research the polarization transmission characteristics of polarized light passing through various media and verify the polarization transmission characteristics together under the experimental test and the computer simulation method, the invention provides a verification method for the experimental test and the computer simulation of the polarization transmission characteristics of multilayer media.
The invention adopts the following technical scheme: the multilayer medium polarization transmission characteristic experimental test and computer simulation verification method is characterized in that an optical system adopted by the method comprises a polarized light polarization system, a multilayer medium simulation system and a polarization transmission characteristic detection system, wherein the polarized light polarization system, the multilayer medium simulation system and the polarization transmission characteristic detection system are sequentially arranged on a transmission light path of a light beam;
the polarized light polarizing system consists of a laser, a collimating system, a light filter, a linear polarizer and a quarter-wave plate, and takes the horizontal direction as a reference axis, the angle adjusting range of the linear polarizer is 0-360 degrees, the angle adjusting range of the quarter-wave plate is 0-360 degrees, or the quarter-wave plate (15) is removed;
the multilayer medium simulation system comprises environment simulation systems, the number of the environment simulation systems is N, N is more than or equal to 2, the N environment simulation systems are arranged in parallel along the propagation direction of light, the emergent window of the former environment simulation system is aligned with the incident window of the latter environment simulation system;
the polarization transmission characteristic detection system comprises a polarization state measuring instrument and a polarization state measuring instrument, wherein the polarization state measuring instrument is used for detecting the polarization degree of polarized light in real time;
the method specifically comprises the following steps:
step one, arranging a laser, a collimation system, an optical filter and an environment simulation system in sequence along the propagation direction of light, starting the laser, and emitting lightThe beams are emitted after passing through a collimation system, an optical filter and an environment simulation system in sequence, the light power meter detects the light intensity value of the emitted light beam, and the light intensity value I of the emitted light beam when no medium is filled is recordedo；
Secondly, filling smoke into the environment simulation system in the first step, recording the time for filling the smoke, detecting the light intensity value of the emergent light beam in the smoke environment by the optical power meter after the smoke filling is stopped, and recording the light intensity value I of the emergent light beam in the smoke environment after the light intensity value detected by the optical power meter is stable;
step three, obtaining the light intensity value I of the outgoing light beam when no medium is filled in the first stepoAnd the light intensity value I of the emergent light beam obtained in the step two after passing through the smoke environment obtains the optical thickness tau in the smoke environment,
step four, exhausting the smoke in the environment simulation system, placing the Marwin particle size analyzer in the environment simulation system along the transmission direction of light, filling the smoke into the environment simulation system again, wherein the time for filling the smoke is the same as the time for filling the smoke in the step two, and measuring the particle size parameter of the smoke filled in the environment simulation system by the Marwin particle size analyzer;
step five, exhausting smoke in the environment simulation system, and moving the Marvin particle analyzer to any position where the transmission direction of light rays is not blocked;
step six, repeating the step two to the step five, wherein the repetition frequency is (N-1) times, N is more than or equal to 2, different types of smoke are filled into the environment simulation system every time, and the smoke filled into the environment simulation system is different from the smoke filled into the environment simulation system in the step two to the step five, so that (N-1) light intensity values of light beams emitted after passing through a smoke environment, (N-1) optical thickness under the smoke environment, and (N-1) particle size parameters of the smoke filled into the environment simulation system are obtained;
seventhly, obtaining light intensity values of N outgoing light beams after passing through the smoke environment, optical thicknesses of N smoke environments and particle size parameters of smoke filled in N environment simulation systems through the steps from the first step to the sixth step;
eighthly, placing a linear polarizer and a quarter wave plate behind the optical filter in the step one, polarizing the light beam emitted by the optical filter, and enabling the obtained polarized light to enter the multilayer medium simulation system, simultaneously filling smoke into N environment simulation systems in the multilayer medium simulation system, filling one type of smoke into each environment simulation system, filling the first environment simulation system with the first type of smoke, wherein the first type of smoke is consistent with the types of the smoke in the first step to the fifth step, the filling time of the first smoke is the same as the time of filling the smoke in the step two, and so on, the Nth environment simulation system fills the Nth smoke, the filling time of the Nth smoke is consistent with the filling time of any smoke in the sixth step, and the emission end of the multilayer medium simulation system is recorded in real time by a polarization state measuring instrument;
step nine, according to the smoke components in the N environment simulation systems, a refractivity table is searched, the refractivity table corresponding to the smoke is found, the laser wavelength emitted by the laser, the polarization state of the incident polarized light, the refractivity of the smoke in the first environment simulation system, the particle size measured by a Malvern particle sizer and the optical thickness value of the smoke in the first environment simulation system are sequentially input into a Monte Carlo simulation program, and the Monte Carlo simulation program is used for simulating the polarization state of the polarized light after passing through a layer of medium environment by a computer;
and step ten, operating the Monte Carlo program again, sequentially inputting the laser wavelength emitted by the laser, the polarization state of the polarized light after passing through the medium layer, the refractive index of the smoke in the second environment simulation system, the particle size measured by the Marvin particle sizer and the optical thickness value of the smoke in the second environment simulation system into the Monte Carlo program, and simulating the polarization state of the polarized light after passing through the medium layers by the computer, and repeating the steps in the same way to perform iteration for simulating the polarization state of the polarized light after passing through the medium environment of the N layers by the computer.
Further, the concentration of the smoke filled in the second step is adjusted according to the time for filling the smoke, and the concentration of the smoke filled in the second step is in direct proportion to the time for filling the smoke.
Through the design scheme, the invention can bring the following beneficial effects: the invention provides a method for verifying the polarization transmission characteristic experiment test and computer simulation of a multilayer medium, aiming at the polarization transmission problem under the environment of multiple media, because the existing Monte Carlo simulation program is only suitable for the same uniform medium and can not verify the experiment test result, the invention adopts a multilayer medium simulation system in the experiment test, establishes the parameters needed in the simulation system by testing the parameters such as optical thickness, grain diameter and the like in each environment simulation system through the experiment, adopts a method of calculating recursion one by one, takes the emergent light simulated by the former environment simulation system as the incident light simulated by the latter environment simulation system, establishes the relation between the environment media of each layer, ensures that the experiment and the simulation are verified mutually, and ensures that the polarization transmission characteristic under the environment of the non-uniform smoke medium can be simulated by adopting the traditional Monte Carlo method, and the accuracy of the result of the experimental test is improved, the accuracy can be verified theoretically, and the application range of the polarization transmission detection is expanded.
Drawings
The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of media parameter testing in an environmental simulation system according to the present invention.
FIG. 2 is a schematic diagram of experimental testing of polarization transmission characteristics of a multilayer dielectric according to the present invention.
In the figure: the system comprises a 1-polarized light polarizing system, an 11-laser, a 12-collimation system, a 13-optical filter, a 14-linear polarizer, a 15-quarter wave plate, a 2-multilayer medium simulation system, a 3-polarized transmission characteristic detection system, a 4-environment simulation system and a 5-optical power meter.
Detailed Description
As shown in fig. 1 and fig. 2, the verification method for the multilayer dielectric polarization transmission characteristic experimental test and the computer simulation provided by the present invention is characterized in that: the device comprises a polarized light polarizing system 1, a multilayer medium simulation system 2 and a polarization transmission characteristic detection system 3, wherein the polarized light polarizing system 1, the multilayer medium simulation system 2 and the polarization transmission characteristic detection system 3 are sequentially arranged on a transmission light path of a light beam;
the polarized light polarizing system 1 comprises a laser 11, a collimating system 12, a filter 13, a linear polarizer 14 and a quarter-wave plate 15, and takes the horizontal direction as a reference axis, the angle adjusting range of the linear polarizer 14 is 0-360 degrees, the angle adjusting range of the quarter-wave plate 15 is 0-360 degrees, or the quarter-wave plate 15 is removed;
the multilayer medium simulation system 2 comprises two environment simulation systems 4, the two environment simulation systems 4 are arranged in parallel along the propagation direction of light, and the emergent window of the former environment simulation system 4 is aligned with the incident window of the latter environment simulation system 4; the multilayer medium simulation system 2 can place a plurality of environment simulation systems 4 according to actual test requirements and following the placement principle;
the polarization transmission characteristic detection system 3 comprises a polarization state measuring instrument for detecting the polarization degree of polarized light in real time;
the required equipment is as follows: installing a VC + + computer system;
example one
The multilayer dielectric polarization transmission characteristic experimental test and computer simulation verification method comprises the following steps,
step one, a laser 11 is started, a light beam sequentially passes through a collimation system 12 and an optical filter 13 to generate uniform and collimated parallel light, the parallel light is incident into an environment simulation system 4, the light beam emitted by the environment simulation system 4 is detected by an optical power meter 5 to obtain a light intensity value I when no medium is filled in the light beamo；
Secondly, filling oil mist into the environment simulation system 4, recording the time for filling the oil mist, starting to record the light intensity value emitted after the oil mist environment is filled by the optical power meter 5 after the mist filling is stopped, and recording the light intensity value I when the light intensity value detected by the optical power meter 5 is stable, which indicates that the oil mist in the environment simulation system 4 is stable at the moment;
step three, recording the light intensity value I when the medium is not filled inoAnd calculating the optical thickness tau at the sampling time according to the light intensity value I after filling the oil mist medium, wherein the optical thickness tau is as follows:
step four, emptying the oil mist in the environment simulation system 4, placing the Marwin particle size analyzer in the environment simulation system 4 along the transmission direction of light, filling the oil mist into the environment simulation system 4 again, wherein the time for filling the oil mist is the same as the time for filling the oil mist in the step two, ensuring that the concentration of the filled oil mist is the same as the concentration of the oil mist filled in the step two, and measuring the particle size parameter of the oil mist filled in the environment simulation system 4 by the Marwin particle size analyzer;
fifthly, exhausting oil mist in the environment simulation system 4, and moving the Marvens particle analyzer to any position where the transmission direction of light is not blocked;
step six, repeating the step two, filling water mist into the environment simulation system 4 at the moment, and recording again; and repeating the third step, recording the optical thickness in the water mist environment; repeating the step four, and measuring the particle size parameter of the water mist filled in the environment simulation system 4; repeating the fifth step, emptying the water mist in the environment simulation system 4, and moving the Marvens particle size analyzer to any position where the light transmission direction is not blocked;
seventhly, placing a linear polarizer 14 and a quarter-wave plate 15 behind the optical filter 13 to form a polarized light polarizing system, enabling the generated polarized light to enter the multilayer medium simulation system 2, wherein the multilayer medium simulation system 2 comprises two environment simulation systems 4, the first environment simulation system 4 is filled with oil mist, the filling time is ensured to be consistent with the time for filling the oil mist in the step two, the second environment simulation system 4 is filled with water mist, the filling time is ensured to be consistent with the time for filling the water mist in the step six, and after the environment is stable, real-time recording is carried out on the emergent end of the multilayer medium simulation system 2 by a polarization state measuring instrument;
step eight, according to the smoke components in the two environment simulation systems 4 in the multilayer medium simulation system 2, finding a refraction index table to find the refraction index corresponding to the smoke, and sequentially inputting the laser wavelength emitted by the laser 11, the polarization state of the incident polarized light, the refraction index of the oil mist in the first environment simulation system 4 in the multilayer medium simulation system 2, the particle size measured by a Malvern particle sizer, and the optical thickness value of the oil mist in the first environment simulation system 4 into a Monte Carlo simulation program for simulating the polarization state of the polarized light after passing through a layer of medium environment by a computer;
step nine, operating the Monte Carlo program again, and sequentially inputting the laser wavelength emitted by the laser 11, the polarization state of the polarized light after passing through one layer of medium, the refractive index of the water mist in the second environment simulation system 4 in the multilayer medium simulation system 2, the particle size measured by the Malvern particle sizer, and the optical thickness values of the water mist in the two environment simulation systems 4 into the Monte Carlo program for simulating the polarization state of the polarized light after passing through the two layers of medium environments by the computer;
and in the second step, the concentration of the charged oil mist can be adjusted according to the time of charging the oil mist, and the concentration of the charged smoke is in direct proportion to the time of charging the smoke, namely, the longer the oil mist charging time is, the higher the concentration of the oil mist in the environment simulation system is.
And the oil mist filled in the step two and the water mist filled in the step six can be selected according to actual measurement needs, but the measurement steps are not changed.
The above examples are merely illustrative of the methods and benefits of the present invention and are not intended to be limiting. Any person skilled in the art can modify the above-described embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be as set forth in the claims.
Claims (2)
1. The multilayer medium polarization transmission characteristic experimental test and computer simulation verification method is characterized in that an optical system adopted by the method comprises a polarized light polarizing system (1), a multilayer medium simulation system (2) and a polarization transmission characteristic detection system (3), wherein the polarized light polarizing system (1), the multilayer medium simulation system (2) and the polarization transmission characteristic detection system (3) are sequentially arranged on a transmission light path of a light beam;
the polarized light polarizing system (1) is composed of a laser (11), a collimating system (12), a filter (13), a linear polarizer (14) and a quarter-wave plate (15), and takes the horizontal direction as a reference axis, the angle adjusting range of the linear polarizer (14) is 0-360 degrees, the angle adjusting range of the quarter-wave plate (15) is 0-360 degrees, or the quarter-wave plate (15) is removed;
the multilayer medium simulation system (2) comprises environment simulation systems (4), the number of the environment simulation systems (4) is N, N is more than or equal to 2, the N environment simulation systems (4) are arranged in parallel along the propagation direction of light, two adjacent environment simulation systems (4) are arranged, and the emergent window of the former environment simulation system (4) is aligned with the incident window of the latter environment simulation system (4);
the polarization transmission characteristic detection system (3) comprises a polarization state measuring instrument which is used for detecting the polarization degree of polarized light in real time;
the method specifically comprises the following steps:
step one, along the propagation direction of light, a laser (11), a collimation system (12), an optical filter (13) and an environment simulation system (4) are sequentially arranged, the laser (11) is started, light beams sequentially pass through the collimation system (12), the optical filter (13) and the environment simulation system (4) and then are emitted, the light power meter (5) detects the light intensity value of the emergent light beams, and the light intensity value I of the emergent light beams when any medium is not filled is recordedo；
Secondly, smoke is filled into the environment simulation system (4) in the first step, the time for filling the smoke is recorded, after the filling of the smoke is stopped, the light power meter (5) detects the light intensity value of the emergent light beam in the smoke environment, and after the light intensity value detected by the light power meter (5) is stable, the light intensity value I of the emergent light beam in the smoke environment is recorded;
step three, obtaining the light intensity value I of the outgoing light beam when no medium is filled in the first stepoAnd the light intensity value I of the emergent light beam obtained in the step two after passing through the smoke environment obtains the optical thickness tau in the smoke environment,
step four, exhausting the smoke in the environment simulation system (4), placing the Marwin particle size analyzer in the environment simulation system (4) along the transmission direction of light, filling the smoke into the environment simulation system (4) again, wherein the time for filling the smoke is the same as the time for filling the smoke in the step two, and measuring the particle size parameter of the smoke filled in the environment simulation system (4) by the Marwin particle size analyzer;
step five, exhausting smoke in the environment simulation system (4), and moving the Marvens particle analyzer to any position where the transmission direction of light is not blocked;
step six, repeating the step two to the step five, wherein the repetition frequency is (N-1) times, N is more than or equal to 2, different types of smoke are filled into the environment simulation system (4) every time, and the smoke filled into the environment simulation system is different from the smoke filled into the environment simulation system in the step two to the step five, so that (N-1) light intensity values of light beams emitted after passing through a smoke environment, (N-1) optical thickness under the smoke environment, and (N-1) particle size parameters of the smoke filled into the environment simulation system (4) are obtained;
seventhly, obtaining light intensity values of N outgoing light beams after passing through the smoke environment, optical thicknesses of N smoke environments and particle size parameters of smoke filled in the N environment simulation systems (4) through the steps from the first step to the sixth step;
eighthly, placing a linear polarizer (14) and a quarter-wave plate (15) behind the optical filter (13) in the first step, polarizing light beams emitted by the optical filter (3), enabling the obtained polarized light to enter the multilayer medium simulation system (2), simultaneously filling smoke into N environment simulation systems (4) in the multilayer medium simulation system (2), filling smoke into each environment simulation system (4), filling the first environment simulation system (4) with the first smoke, enabling the first smoke to be consistent with the smoke types in the first step to the fifth step, enabling the filling time of the first smoke to be consistent with the filling time of the smoke in the second step, repeating the steps, filling the Nth environment simulation system (4) with the Nth smoke, enabling the filling time of the Nth smoke to be consistent with the filling time of any smoke in the sixth step, recording the emergent end of the multilayer medium simulation system (2) in real time by a polarization state measuring instrument;
step nine, according to the smoke components in the N environment simulation systems (4), a refraction index table is searched, the refraction index corresponding to the smoke is found, the laser wavelength emitted by the laser (11), the polarization state of incident polarized light, the refraction index of the smoke in the first environment simulation system (4) and the particle size measured by a Malvern particle sizer are sequentially input into a Monte Carlo simulation program, and the optical thickness value of the smoke in the first environment simulation system (4) is used for simulating the polarization state of the polarized light after passing through a layer of medium environment by a computer;
and step ten, operating the Monte Carlo program again, sequentially inputting the laser wavelength emitted by the laser (11), the polarization state of the polarized light after passing through the medium layer, the refractive index of the smoke in the second environment simulation system (4), the particle size measured by the Malvern particle sizer and the optical thickness value of the smoke in the second environment simulation system (4) into the Monte Carlo program, and simulating the polarization state of the polarized light after passing through the medium layers by the computer, and repeating the steps to iterate for simulating the polarization state of the polarized light after passing through the medium environment with N layers by the computer.
2. The method for verifying the polarization transmission characteristics of the multilayer medium according to claim 1, wherein the method comprises the following steps: in the second step, the concentration of the smoke filled in the second step is adjusted according to the time for filling the smoke, and the concentration of the smoke filled in the second step is in direct proportion to the time for filling the smoke.
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| CN110987816B (en) * | 2019-12-16 | 2022-08-09 | 长春理工大学 | Multilayer sea fog environment active polarization characteristic test system under influence of solar illumination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8406487B2 (en) * | 2009-09-16 | 2013-03-26 | General Electric Company | Method and system for contactless fingerprint detection and verification |
| WO2013081724A3 (en) * | 2011-10-12 | 2014-05-08 | Lumidigm, Inc. | Methods and systems for performing biometric functions |
| US8830465B2 (en) * | 2010-08-30 | 2014-09-09 | Hitachi High-Technologies Corporation | Defect inspecting apparatus and defect inspecting method |
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| CN104089651A (en) * | 2014-07-06 | 2014-10-08 | 长春理工大学 | Smog environment simulation device for testing polarization laser transmission features |
| CN104596645B (en) * | 2015-02-02 | 2017-01-25 | 长春理工大学 | Completely-polarized multi-angle scattering simulation and testing system for complex environment |
| CN104865224B (en) * | 2015-06-05 | 2017-04-05 | 长春理工大学 | For point amplitude type measuring method of smog medium scatters characteristic Muller matrix pattern |
| CN107340207B (en) * | 2017-07-05 | 2020-03-10 | 长春理工大学 | Method for measuring haze particle scattering effect based on polarization detection |
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| WO2013081724A3 (en) * | 2011-10-12 | 2014-05-08 | Lumidigm, Inc. | Methods and systems for performing biometric functions |
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