5 research outputs found

    Π‘ΠΏΠ΅ΠΊΡ‚Ρ€ΠΎΡ„ΠΎΡ‚ΠΎΠΌΠ΅Ρ‚Ρ€Ρ‹ Π΄ΠΈΡ„Ρ„ΡƒΠ·Π½ΠΎΠ³ΠΎ отраТСния Π½Π° основС ΠΌΠΈΠ½ΠΈ-спСктромСтров C12880MA ΠΈ C11708MA Hamamatsu

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    Diffuse reflection spectroscopy with spatial resolution is a promising direction of non-destructive control of the properties of a number of scattering fine-dispersed materials, including food products. It can find wide practical application only in the presence of compact, easy-to-use and inexpensive spectrophotometric equipment. The aim of the article is to investigate the possibility of creating portable spectrophotometers based on Hamamatsu mini-spectrometers, which work together with modern computing facilities.The schematics for connecting the C12880MA and C11708MA mini-spectrometers to portable computing devices are reviewed. Shows the feasibility of using a small-sized microprocessor board ARM STM32F103C8T6 (Blue pill) on the chip STM32F103C8T6. Its use in the connection scheme has simplified data exchange with the control computer via USB interface and the formation of all the signals that are needed to control the mini-spectrometer.Two experimental samples of spectrophotometers based on C12880MA and C11708MA mini-spectrometers and STM32 microprocessors were created and their characteristics were studied. The calibration procedure and features of the software for these spectrophotometers are presented. The described features ensure the efficiency of software modification for the spectrophotometric problem to be solved. The presence of distortions of the registered spectra in the short-wave part of the spectral range of C12880MA was revealed. They arise due to focusing by the concave diffraction grating of a part of the radiation scattered by it into zero order.Approbation of developed portable spectrophotometers based on Hamamatsu mini-spectrometers indicates the possibility of their use in portable spectrophotometric equipment and devices for spectral control of optical properties of scattering materials. The described calibration technique allows you to determine the range of the spectrum, in which the distortions of the recorded spectra are minimal. The proposed solutions significantly reduce the cost of diffuse reflectance spectroscopy devices with spatial resolution and expand the possibilities of their use in various branches of science and industry.БпСктроскопия Π΄ΠΈΡ„Ρ„ΡƒΠ·Π½ΠΎΠ³ΠΎ отраТСния с пространствСнным Ρ€Π°Π·Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ΠΌ – пСрспСктивноС Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ Π½Π΅Ρ€Π°Π·Ρ€ΡƒΡˆΠ°ΡŽΡ‰Π΅Π³ΠΎ контроля свойств ряда Ρ€Π°ΡΡΠ΅ΠΈΠ²Π°ΡŽΡ‰ΠΈΡ… мСлкодиспСрсных ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС ΠΈ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΎΠ² питания. Она ΠΌΠΎΠΆΠ΅Ρ‚ Π½Π°ΠΉΡ‚ΠΈ ΡˆΠΈΡ€ΠΎΠΊΠΎΠ΅ практичСскоС ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ ΠΏΡ€ΠΈ Π½Π°Π»ΠΈΡ‡ΠΈΠΈ ΠΊΠΎΠΌΠΏΠ°ΠΊΡ‚Π½ΠΎΠΉ, простой Π² ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ ΠΈ Π½Π΅Π΄ΠΎΡ€ΠΎΠ³ΠΎΠΉ спСктрофотомСтричСской Ρ‚Π΅Ρ…Π½ΠΈΠΊΠΈ. ЦСль ΡΡ‚Π°Ρ‚ΡŒΠΈ – исслСдованиС возмоТности создания ΠΏΠΎΡ€Ρ‚Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… спСктрофотомСтров Π½Π° основС ΠΌΠΈΠ½ΠΈ-спСктромСтров Hamamatsu, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Ρ€Π°Π±ΠΎΡ‚Π°ΡŽΡ‚ Π² комплСксС с соврСмСнными Π²Ρ‹Ρ‡ΠΈΡΠ»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌΠΈ срСдствами.РассмотрСны схСмы ΠΏΠΎΠ΄ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΡ ΠΌΠΈΠ½ΠΈ-спСктромСтров C12880MA ΠΈ C11708MA ΠΊ ΠΏΠΎΡ€Ρ‚Π°Ρ‚ΠΈΠ²Π½Ρ‹ΠΌ Π²Ρ‹Ρ‡ΠΈΡΠ»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ устройствам. Показана Ρ†Π΅Π»Π΅ΡΠΎΠΎΠ±Ρ€Π°Π·Π½ΠΎΡΡ‚ΡŒ использования ΠΌΠ°Π»ΠΎΠ³Π°Π±Π°Ρ€ΠΈΡ‚Π½ΠΎΠΉ микропроцСссорной ΠΏΠ»Π°Ρ‚Ρ‹ ARM STM32F103C8T6 (Blue pill) Π½Π° Ρ‡ΠΈΠΏΠ΅ STM32F103C8T6. Π•Ρ‘ использованиС Π² схСмС ΠΏΠΎΠ΄ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ ΡƒΠΏΡ€ΠΎΡΡ‚ΠΈΡ‚ΡŒ ΠΎΠ±ΠΌΠ΅Π½ Π΄Π°Π½Π½Ρ‹ΠΌΠΈ с ΡƒΠΏΡ€Π°Π²Π»ΡΡŽΡ‰ΠΈΠΌ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€ΠΎΠΌ ΠΏΠΎ USB интСрфСйсу ΠΈ Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ всСх сигналов, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹ для управлСния Ρ€Π°Π±ΠΎΡ‚ΠΎΠΉ ΠΌΠΈΠ½ΠΈ-спСктромСтра.Π‘ΠΎΠ·Π΄Π°Π½Ρ‹ Π΄Π²Π° ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΎΠ±Ρ€Π°Π·Ρ†Π° спСктрофотомСтров Π½Π° основС ΠΌΠΈΠ½ΠΈ-спСктромСтров C12880MA ΠΈ C11708MA ΠΈ микропроцСссоров STM32 ΠΈ исслСдованы ΠΈΡ… характСристики. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ° Π³Ρ€Π°Π΄ΡƒΠΈΡ€ΠΎΠ²ΠΊΠΈ ΠΈ особСнности ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠ³ΠΎ обСспСчСния этих спСктрофотомСтров. ΠžΠΏΠΈΡΠ°Π½Π½Ρ‹Π΅ особСнности ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΎΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠ³ΠΎ обСспСчСния ΠΏΠΎΠ΄ Ρ€Π΅ΡˆΠ°Π΅ΠΌΡƒΡŽ ΡΠΏΠ΅ΠΊΡ‚Ρ€ΠΎΡ„ΠΎΡ‚ΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Π·Π°Π΄Π°Ρ‡Ρƒ. ВыявлСно Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ искаТСний рСгистрируСмых спСктров Π² ΠΊΠΎΡ€ΠΎΡ‚ΠΊΠΎΠ²ΠΎΠ»Π½ΠΎΠ²ΠΎΠΌ участкС ΡΠΏΠ΅ΠΊΡ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π° C12880MA. Они Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡŽΡ‚ Π·Π° счёт фокусировки Π²ΠΎΠ³Π½ΡƒΡ‚ΠΎΠΉ Π΄ΠΈΡ„Ρ€Π°ΠΊΡ†ΠΈΠΎΠ½Π½ΠΎΠΉ Ρ€Π΅ΡˆΠ΅Ρ‚ΠΊΠΎΠΉ части рассСиваСмого Π΅ΠΉ излучСния Π² Π½ΡƒΠ»Π΅Π²ΠΎΠΉ порядок.Апробация созданных ΠΏΠΎΡ€Ρ‚Π°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… спСктрофотомСтров Π½Π° основС ΠΌΠΈΠ½ΠΈ-спСктромСтров Hamamatsu ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π΅Ρ‚ Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΡ… примСнСния Π² ΠΏΠΎΡ€Ρ‚Π°Ρ‚ΠΈΠ²Π½ΠΎΠΉ спСктрофотомСтричСской Ρ‚Π΅Ρ…Π½ΠΈΠΊΠ΅ ΠΈ устройствах ΡΠΏΠ΅ΠΊΡ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ контроля оптичСских свойств Ρ€Π°ΡΡΠ΅ΠΈΠ²Π°ΡŽΡ‰ΠΈΡ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ². Описанная ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ° Π³Ρ€Π°Π΄ΡƒΠΈΡ€ΠΎΠ²ΠΊΠΈ позволяСт ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡ‚ΡŒ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ спСктра, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ искаТСния рСгистрируСмых спСктров ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹. ΠŸΡ€Π΅Π΄Π»Π°Π³Π°Π΅ΠΌΡ‹Π΅ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ сущСствСнно ΡΠ½ΠΈΠ·ΠΈΡ‚ΡŒ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ устройств спСктроскопии Π΄ΠΈΡ„Ρ„ΡƒΠ·Π½ΠΎΠ³ΠΎ отраТСния с пространствСнным Ρ€Π°Π·Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ΠΌ ΠΈ Ρ€Π°ΡΡˆΠΈΡ€ΠΈΡ‚ΡŒ возмоТности ΠΈΡ… использования Π² Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… отраслях Π½Π°ΡƒΠΊΠΈ ΠΈ производства

    Π’Π›Π˜Π―ΠΠ˜Π• Π˜ΠΠžΠšΠ£Π›Π―Π¦Π˜Π˜ Π‘Π•ΠœΠ―Π Π Π˜Π—ΠžΠΠ“Π Π˜ΠΠžΠœ НА ΠœΠ˜ΠšΠ ΠžΠ€Π›ΠžΠ Π£ Π Π˜Π—ΠžΠ‘Π€Π•Π Π« И Π£Π ΠžΠ–ΠΠ™ΠΠžΠ‘Π’Π¬ ΠžΠ—Π˜ΠœΠžΠ™ ΠŸΠ¨Π•ΠΠ˜Π¦Π« Π’ Π›Π•Π‘ΠžΠ‘Π’Π•ΠŸΠ˜ Π—ΠΠŸΠΠ”ΠΠžΠ™ Π‘Π˜Π‘Π˜Π Π˜

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    The researchers conduct the field stationary experiment with the use of mineral fertilizers and straw in the grain and steam crop rotation with the withdrawal field of alfalfa and study the number of microflora in the rhizosphere of winter wheat of the new variety Priirtyshskaya after treatment of seeds with biospecimen of complex effect - risoagrine. The highest number of useful crop groups of microorganisms was observed in the variant with inoculation of crop seeds by risoagrine on the basis of applying mineral fertilizers, as well as in combination of inoculation techniques, application of mineral fertilizers and straw (N15P23 + straw + inoculation), respectively, 444 and 355 million UU/yr with 217 million UU/yr in the control group. In the variant with inoculation of winter wheat seeds by mineral fertilizers (N15P23 + inoculation), the number ofoligonitrophils and bacteria, mineralizing mineral phosphates, increased by 2.2 times, nitrifiers - by 60%, microorganisms that utilize organic nitrogen compounds on MPA - by 39, consuming mineral nitrogen on CAA - by 73% compared to the control group. The celluloseolytic soil activity under winter wheat sowing in variants N15P23 + inoculation and N15P23 + straw + inoculation increased to 66.5-67.0%, exceeded the control group by 1.7 times. The highest increase in the crop’s grains was observed in the combination of mineral, organic (straw) and bacterial (rizoagrine) fertilizers - 40.3% in comparison with the control group. Additional nitrogen removal by winter wheat crop due to the activity of associative diazotrophs varied from 6 to 16.5 kg/ha. Correlative relations of high (r=0.84-0.91) and average (r=0.62-0.72) degree of microorganisms in the rhizosphere were observed among the indicators of crop yield and number of microorganisms. The closest correlation took place between the value of winter wheat grain yield and the number of bacteria growing on MPA, including ammonifiers, and the yield and number of nitrifying bacteria.Π’ ΠΏΠΎΠ»Π΅Π²ΠΎΠΌ стационарном ΠΎΠΏΡ‹Ρ‚Π΅ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ ΠΈ соломы Π² Π·Π΅Ρ€Π½ΠΎΠΏΠ°Ρ€ΠΎΠ²ΠΎΠΌ сСвооборотС с Π²Ρ‹Π²ΠΎΠ΄Π½Ρ‹ΠΌ ΠΏΠΎΠ»Π΅ΠΌ Π»ΡŽΡ†Π΅Ρ€Π½Ρ‹ исслСдована Ρ‡ΠΈΡΠ»Π΅Π½Π½ΠΎΡΡ‚ΡŒ ΠΌΠΈΠΊΡ€ΠΎΡ„Π»ΠΎΡ€Ρ‹ Π² ризосфСрС ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ Π½ΠΎΠ²ΠΎΠ³ΠΎ сорта ΠŸΡ€ΠΈΠΈΡ€Ρ‚Ρ‹ΡˆΡΠΊΠ°Ρ послС ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ сСмян Π±ΠΈΠΎΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠΌ комплСксного дСйствия – Ρ€ΠΈΠ·ΠΎΠ°Π³Ρ€ΠΈΠ½ΠΎΠΌ. НаиболСС высокая общая Ρ‡ΠΈΡΠ»Π΅Π½Π½ΠΎΡΡ‚ΡŒ агрономичСски ΠΏΠΎΠ»Π΅Π·Π½Ρ‹Ρ… Π³Ρ€ΡƒΠΏΠΏ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ² установлСна Π² Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π΅ с инокуляциСй сСмян ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Ρ‹ Ρ€ΠΈΠ·ΠΎΠ°Π³Ρ€ΠΈΠ½ΠΎΠΌ Π½Π° Ρ„ΠΎΠ½Π΅ ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΡ€ΠΈ сочСтании ΠΏΡ€ΠΈΠ΅ΠΌΠΎΠ² инокуляции, внСсСния ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ ΠΈ соломы (N15P23 + солома + инокуляция), соотвСтствСнно 444 ΠΈ 355 ΠΌΠ»Π½ ΠšΠžΠ•/Π³ ΠΏΡ€ΠΈ 217 ΠΌΠ»Π½ ΠšΠžΠ•/Π³ Π² ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π΅. Π’ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π΅ с инокуляциСй сСмян ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ Π½Π° Ρ„ΠΎΠ½Π΅ ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ (N15P23 + инокуляция) количСство ΠΎΠ»ΠΈΠ³ΠΎΠ½ΠΈΡ‚Ρ€ΠΎΡ„ΠΈΠ»ΠΎΠ² ΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ, ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΠΈΠ·ΡƒΡŽΡ‰ΠΈΡ… ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Π΅ фосфаты, ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΠ»ΠΎΡΡŒ Π² 2,2 Ρ€Π°Π·Π°, Π½ΠΈΡ‚Ρ€ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€ΠΎΠ² – Π½Π° 60%, ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ², ΡƒΡ‚ΠΈΠ»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… органичСскиС соСдинСния Π°Π·ΠΎΡ‚Π° Π½Π° МПА, – Π½Π° 39, ΠΏΠΎΡ‚Ρ€Π΅Π±Π»ΡΡŽΡ‰ΠΈΡ… ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΉ Π°Π·ΠΎΡ‚ Π½Π° КАА – Π½Π° 73% Π² сравнСнии с ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π΅ΠΌ. Π¦Π΅Π»Π»ΡŽΠ»ΠΎΠ·ΠΎΠ»ΠΈΡ‚ΠΈΡ‡Π΅ΡΠΊΠ°Ρ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΏΠΎΡ‡Π²Ρ‹ ΠΏΠΎΠ΄ посСвом ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ Π² Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π°Ρ… N15P23 + инокуляция ΠΈ N15P23 + солома + инокуляция возросла Π΄ΠΎ 66,5–67,0%, прСвысив ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒ Π² 1,7 Ρ€Π°Π·Π°. Наибольшая ΠΏΡ€ΠΈΠ±Π°Π²ΠΊΠ° Π·Π΅Ρ€Π½Π° ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Ρ‹ Π±Ρ‹Π»Π° ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π° ΠΏΡ€ΠΈ сочСтании ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ…, органичСского (соломы) ΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ (Ρ€ΠΈΠ·ΠΎΠ°Π³Ρ€ΠΈΠ½) ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ – 40,3% ΠΊ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŽ. Π”ΠΎΠΏΠΎΠ»Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ вынос Π°Π·ΠΎΡ‚Π° ΡƒΡ€ΠΎΠΆΠ°Π΅ΠΌ ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ Π·Π° счСт Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ассоциативных Π΄ΠΈΠ°Π·ΠΎΡ‚Ρ€ΠΎΡ„ΠΎΠ² составил ΠΎΡ‚ 6 Π΄ΠΎ 16,5 ΠΊΠ³/Π³Π°. ΠœΠ΅ΠΆΠ΄Ρƒ показатСлями уроТайности ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Ρ‹ ΠΈ Ρ‡ΠΈΡΠ»Π΅Π½Π½ΠΎΡΡ‚ΡŒΡŽ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ² Π² ризосфСрС установлСны коррСлятивныС зависимости сильной (r=0,84–0,91) ΠΈ срСднСй (r=0,62–0,72) стСпСни. НаиболСС тСсная связь ΠΈΠΌΠ΅Π»Π° мСсто ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½ΠΎΠΉ уроТайности Π·Π΅Ρ€Π½Π° ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ ΠΈ количСством Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ, растущих Π½Π° МПА, Π² Ρ‚.Ρ‡. Π°ΠΌΠΌΠΎΠ½ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€ΠΎΠ², Π° Ρ‚Π°ΠΊΠΆΠ΅ ΡƒΡ€ΠΎΠΆΠ°ΠΉΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΈ Ρ‡ΠΈΡΠ»Π΅Π½Π½ΠΎΡΡ‚ΡŒΡŽ Π½ΠΈΡ‚Ρ€ΠΈΡ„ΠΈΡ†ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ

    Diffuse Reflectance Spectrophotometers Based on C12880MA and C11708MA Mini-Spectrometers Hamamatsu

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    Diffuse reflection spectroscopy with spatial resolution is a promising direction of non-destructive control of the properties of a number of scattering fine-dispersed materials, including food products. It can find wide practical application only in the presence of compact, easy-to-use and inexpensive spectrophotometric equipment. The aim of the article is to investigate the possibility of creating portable spectrophotometers based on Hamamatsu mini-spectrometers, which work together with modern computing facilities. The schematics for connecting the C12880MA and C11708MA mini-spectrometers to portable computing devices are reviewed. Shows the feasibility of using a small-sized microprocessor board ARM STM32F103C8T6 (Blue pill) on the chip STM32F103C8T6. Its use in the connection scheme has simplified data exchange with the control computer via USB interface and the formation of all the signals that are needed to control the mini-spectrometer. Two experimental samples of spectrophotometers based on C12880MA and C11708MA mini-spectrometers and STM32 microprocessors were created and their characteristics were studied. The calibration procedure and features of the software for these spectrophotometers are presented. The described features ensure the efficiency of software modification for the spectrophotometric problem to be solved. The presence of distortions of the registered spectra in the short-wave part of the spectral range of C12880MA was revealed. They arise due to focusing by the concave diffraction grating of a part of the radiation scattered by it into zero order. Approbation of developed portable spectrophotometers based on Hamamatsu mini-spectrometers indicates the possibility of their use in portable spectrophotometric equipment and devices for spectral control of optical properties of scattering materials. The described calibration technique allows you to determine the range of the spectrum, in which the distortions of the recorded spectra are minimal. The proposed solutions significantly reduce the cost of diffuse reflectance spectroscopy devices with spatial resolution and expand the possibilities of their use in various branches of science and industry
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