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Precise Real-Time Spectroellipsometry for the Quality of Natural and Waste Waters

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An Adaptive Spectroellipsometric Technology and Portable Optical Devices for the Precise Real-Time Monitoring of the Quality of Natural and Waste Waters

Tech Area / Field

  • ENV-MIN/Monitoring and Instrumentation/Environment
  • ENV-OTH/Other/Environment
  • ENV-WPC/Water Pollution and Control/Environment
  • OBS-NAT/Natural Resources and Earth Sciences/Other Basic Sciences
  • PHY-OPL/Optics and Lasers/Physics

Статус
3 Approved without Funding

Дата регистрации
12.01.2005

Ведущий институт
Russian Academy of Sciences / Institute of Radioengineering and Electronics / Fryazino Branch, Russia, Moscow reg., Fryazino

Соавторы

  • Universitatea "Politehnica"\nKyushu University / Department of Computer Science and Communication Engineering, Japan, Fukuoka\nUnion of Scientist-es of a Nature and Society, Germany, Hannover\nUniversity of Alaska Fairbanks / Institute of Marine Science, USA, AK, Fairbanks\nQuantum Digital Solutions, USA, CA, Los-Angeles\nPurdue University / Information Technology, USA, IN, West Lafayette

Краткое описание проекта

The creation of multichannel polarization optical instrumentation is topical for the real-time ecological control of aquatic environment. It should be mentioned that efficient solution of these multiparametric problems greatly depends on the precision of ellipsometric devices and the possibility of using a wide spectral range. Spectral measurements in an aquatic environment provide an information basis for the application of modern algorithms for the recognition and identification of pollutants.

This project is aimed at elaborating a multichannel spectroellipsometric system that will differ from modern foreign analogues by the use of a new and very promising method of ellipsometric measurements, an original element base of polarization optics and a complex mathematical approach to estimating the quality of a water object subjected to anthropogenic influence.

The system will be trainable to the recognition of pollutants of aquatic environment. Also, unlike foreign analogues, the system has no as well as rotating polarization elements. This allows one to increase the signal-to-noise ratio and the long-term stability of measurements, to simplify and reduce the price of multichannel spectroellipsometers.

The main purpose of the project consists in the creation of a compact adaptive informational measuring system for monitoring the quality of aquatic environment and the investigation of their potential efficiency. This system is based on the combined use of ellipsometry and training, classification, and identification algorithms.

The Head of the Project, Prof. Ferdinand A. Mkrtchyan, and the Project leading scientists, Prof. Vladimir F. Krapivin, Dr. Vladimir V. Klimov , Dr. Vitali I. Kovalev have experience in theoretical and experimental investigations in the field of information technologies for systems of adaptive spectroellipsometry that are used for solving problems of geoinformation monitoring of the environment. The results of their scientific activities in this field have been published in numerous monographs and papers and are widely known in Russia and abroad.

The Project accomplishment will include the following phases.

  1. Systematization and generalization of available theoretical and experimental data on spectral polarization-optical measurements, determination of the concentration of different ingredients in multicomponent solutions by the optical transmission and/or reflection spectra using special software developed within this project.
  2. Development of ellipsometry method with binary modulation of polarization state.
  3. Elaboration of methods and system for data acquisition about the current state of the aquatic environment on the basis of ellipsometric measurements.
  4. Creation of methods for processing of the ellipsometric information to estimate the state of aquatic systems on the basis of physico-mathematical models of these systems.
  5. Synthesis of mathematical models for describing the dynamics of aquatic systems, taking into account anthropogenic factors.
  6. Elaboration of informative indexes for the recognition and identification of pollutants in the aquatic environment on the basis of spectroellipsometric measurements.
  7. Development of algorithmic support for the adaptive spectroellipsometer based on the complex use of the methods of recognition and classification of point (discrete) images formed on the basis of the multichannel data.
  8. Elaboration of a technique for formation of the standard spectroellipsometric images data bank for different chemical water solutions to solve the problem of identification of pollutants.
  9. The analysis of the functional capabilities of the adaptive spectroellipsometer under the conditions of increasing volume of standard spectroellipsometric images in the data bank.
  10. Carrying out laboratory and on-site measurements of absorption, scattering, and reflection of optical radiation for calibrating aquatic environment models and for the spatial-temporal adaptation of these models.
  11. Preparation of recommendations for increasing the efficiency of ecological monitoring of aquatic environment due to the use of these adaptive models and spectroellipsometric measurements

The basic expected results of the work are as follows.

From the scientific point of view:

a) Elaboration of a new approach in spectroellipsometry – ellipsometry with binary modulation of polarization state, based on multichannel measurements
b) Fixing the interrelation between the spectral characteristics and the chemical elements concentration in aquatic medium,
c) The development of the standard spectroellipsometric images data bank for different chemical water solutions that ensures the solution of the identification problem.


From the practical and the commercial points of view:

a) Creation of a new element basis for spectroellipsometry, polarization optics allows the development, production of cheap, high precision, stably working portable spectroellipsometers.
b) Proposal development on applications of portable spectroellipsometers for

- On-site estimation of natural and wastewater quality,
- On-site measurement of the mineralization level and chemical pollution of reservoir depending on the pollution type
- On-site testing the organic pollution clots in water environment
- Laboratory analysis of liquids in medicine, biochemistry, food industry.

The Project gives the participants an opportunity to conduct effective research and development activities in this important and widely requested area of the Earth exploration. Participation of foreign scientists as Project collaborators is expected. This will provide a unique opportunity for all participants to establish international scientific contacts that will work beneficially towards integration on a multinational level in one of the most important fields of science and technology. The basic task of the Project is related to the human activity area, called “Development Facilities / Means for Observation / Monitoring and Control of the Environment”. This is one of the main goals of the ISTC activity.

The expected duration of Project is 36 months. The timetable looks like the following:

First 6 months:

- analysis, systematization, and generalization of available theoretical knowledge and experimental data on spectroellipsometry, and
- preparation of measuring instrumentation;


Next 24 months:

- The creation of the apparatus – program complex with technology of joint use of spectroellipsometry data, identification and recognition algorithms, and models;
- Elaboration of Adaptive Spectroellipsometric Technology, including

- The creation of the standard spectroellipsometric images data bank for different chemical water solutions that ensures the solution of the identification problem;
- Development of technique of spectroellipsometric measurements for the precise real-time monitoring of the quality of natural and waste waters;
- Proposal development on use of portable spectroellipsometers for various applications.

Last 6 months:

- Realization of real-time monitoring of the quality of natural waters for selected water reservoir using adaptive spectroellipsometric technology.
- Generalization of the results obtained and recommendations on their use.


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