On Basic Requirements to Main Elements of Laser Correlation Spectrometer
Introduction. Laser correlation spectroscopy is a promising method that allows one to analyze sizes of nanoparticles and to evaluate their shape and dynamics of aggregation in liquids. A limited usage of laser correlation spectroscopy is currently caused by insufficient accuracy of existing instrume...
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| Format: | Article |
| Language: | Russian |
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Saint Petersburg Electrotechnical University "LETI"
2020-02-01
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| Series: | Известия высших учебных заведений России: Радиоэлектроника |
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| Online Access: | https://re.eltech.ru/jour/article/view/405 |
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| author | E. N. Velichko O. I. Kotov E. K. Nepomnyashchaya A. N. Petrov A. V. Sokolov |
| author_facet | E. N. Velichko O. I. Kotov E. K. Nepomnyashchaya A. N. Petrov A. V. Sokolov |
| author_sort | E. N. Velichko |
| collection | DOAJ |
| description | Introduction. Laser correlation spectroscopy is a promising method that allows one to analyze sizes of nanoparticles and to evaluate their shape and dynamics of aggregation in liquids. A limited usage of laser correlation spectroscopy is currently caused by insufficient accuracy of existing instruments and data processing algorithms. The paper described the development of laser correlation spectroscopic hardware complex designed for nanoparticles size determination in liquids. The basic requirements for the elements of the device and the approaches used to calculate the signal-to-noise ratio were discussed. The achieved parameters of the laser correlation spectrometer were presented.Aim. To develop the hardware for nanoparticles size determination in liquids and to optimize the parameters of hardware elements to increase signal-to-noise ratio.Materials and methods. Theory of dynamic light scattering to describe scattering of laser radiation in liquids was applied. Fundamental requirements for the elements of the laser correlation spectrometer were described.Results. An original scheme of the laser correlation spectrometer was developed, the basic requirements for the general scheme elements were described. Equations for calculating signal-to-noise ratio were given.Conclusion. The analysis of the main parameters of the elements of the laser correlation spectroscopic scheme were carried out. It helps one to evaluate the expected signal-to-noise ratio in laser correlation spectrometers. |
| format | Article |
| id | doaj-art-81dfd3ad584f4850907a60874e507b86 |
| institution | Kabale University |
| issn | 1993-8985 2658-4794 |
| language | Russian |
| publishDate | 2020-02-01 |
| publisher | Saint Petersburg Electrotechnical University "LETI" |
| record_format | Article |
| series | Известия высших учебных заведений России: Радиоэлектроника |
| spelling | doaj-art-81dfd3ad584f4850907a60874e507b862025-08-20T03:39:49ZrusSaint Petersburg Electrotechnical University "LETI"Известия высших учебных заведений России: Радиоэлектроника1993-89852658-47942020-02-01231839510.32603/1993-8985-2020-23-1-83-95328On Basic Requirements to Main Elements of Laser Correlation SpectrometerE. N. Velichko0O. I. Kotov1E. K. Nepomnyashchaya2A. N. Petrov3A. V. Sokolov4Peter the Great St.Petersburg Polytechnic UniversityPeter the Great St.Petersburg Polytechnic UniversityPeter the Great St.Petersburg Polytechnic UniversityPeter the Great St.Petersburg Polytechnic UniversityConcern CSRI Elektropribor, JSCIntroduction. Laser correlation spectroscopy is a promising method that allows one to analyze sizes of nanoparticles and to evaluate their shape and dynamics of aggregation in liquids. A limited usage of laser correlation spectroscopy is currently caused by insufficient accuracy of existing instruments and data processing algorithms. The paper described the development of laser correlation spectroscopic hardware complex designed for nanoparticles size determination in liquids. The basic requirements for the elements of the device and the approaches used to calculate the signal-to-noise ratio were discussed. The achieved parameters of the laser correlation spectrometer were presented.Aim. To develop the hardware for nanoparticles size determination in liquids and to optimize the parameters of hardware elements to increase signal-to-noise ratio.Materials and methods. Theory of dynamic light scattering to describe scattering of laser radiation in liquids was applied. Fundamental requirements for the elements of the laser correlation spectrometer were described.Results. An original scheme of the laser correlation spectrometer was developed, the basic requirements for the general scheme elements were described. Equations for calculating signal-to-noise ratio were given.Conclusion. The analysis of the main parameters of the elements of the laser correlation spectroscopic scheme were carried out. It helps one to evaluate the expected signal-to-noise ratio in laser correlation spectrometers.https://re.eltech.ru/jour/article/view/405signal-to-noise ratiospectral characteristics of a laserthe noise of a photomultiplier tube |
| spellingShingle | E. N. Velichko O. I. Kotov E. K. Nepomnyashchaya A. N. Petrov A. V. Sokolov On Basic Requirements to Main Elements of Laser Correlation Spectrometer Известия высших учебных заведений России: Радиоэлектроника signal-to-noise ratio spectral characteristics of a laser the noise of a photomultiplier tube |
| title | On Basic Requirements to Main Elements of Laser Correlation Spectrometer |
| title_full | On Basic Requirements to Main Elements of Laser Correlation Spectrometer |
| title_fullStr | On Basic Requirements to Main Elements of Laser Correlation Spectrometer |
| title_full_unstemmed | On Basic Requirements to Main Elements of Laser Correlation Spectrometer |
| title_short | On Basic Requirements to Main Elements of Laser Correlation Spectrometer |
| title_sort | on basic requirements to main elements of laser correlation spectrometer |
| topic | signal-to-noise ratio spectral characteristics of a laser the noise of a photomultiplier tube |
| url | https://re.eltech.ru/jour/article/view/405 |
| work_keys_str_mv | AT envelichko onbasicrequirementstomainelementsoflasercorrelationspectrometer AT oikotov onbasicrequirementstomainelementsoflasercorrelationspectrometer AT eknepomnyashchaya onbasicrequirementstomainelementsoflasercorrelationspectrometer AT anpetrov onbasicrequirementstomainelementsoflasercorrelationspectrometer AT avsokolov onbasicrequirementstomainelementsoflasercorrelationspectrometer |