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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
22/12/1999 |
Data da última atualização: |
20/06/2018 |
Autoria: |
CRUVINEL, P. E.; MINATEL, E. R.; MUCHERONI, M. L.; VIEIRA, S. R.; CRESTANA, S. |
Título: |
An automatic method based on image processing for measurements of drop size distribution from agricultural sprinklers. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
In: SIMPOSIO BRASILEIRO DE COMPUTACAO GRAFICA E PROCESSAMENTO DE IMAGENS, 9., out. 1996, Caxambu, MG. Anais do SIBGRAPI 96. Caxambu: SBC/UFMG, 1996. |
Páginas: |
p. 39-46. |
Idioma: |
Inglês |
Conteúdo: |
The drop size distribution of sprinkler spray is of practical importance for two reasons. The first one is because the small droplets are subject to wind drift, distorting the application pattern. Second, large droplets possess greater kinetic energy which is transferred to the soil surface causing particle dislodgment and pudding that may result in surface crusting and runoff. We present in this paper a technique based on image processing for measure drop size distribution from agricultural sprinklers in automatic mode. This technique has the advantage of being a direct measurement method that allows to know the characteristics of agricultural sprinklers, which allows to study the effects of pressure and nozzle size on the distributions. The method was obtained using properties of the Fourier for correlation analysis in frequency domain. Results allow both farmers to change on existing irrigation systems to cope with field problems caused by low intake rates and runoff and development work to improve the uniformity of distribution of sprays from agricultural sprinklers. |
Palavras-Chave: |
Agricultural instrumentation; Agricultural sprinklers; Correlacao; Image; Imagem; Instrumentacao agropecuaria; Method. |
Thesagro: |
Irrigação; Método. |
Thesaurus NAL: |
correlation; irrigation; sprinklers. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02086naa a2200325 a 4500 001 1026990 005 2018-06-20 008 1996 bl --- 0-- u #d 100 1 $aCRUVINEL, P. E. 245 $aAn automatic method based on image processing for measurements of drop size distribution from agricultural sprinklers. 260 $c1996 300 $ap. 39-46. 520 $aThe drop size distribution of sprinkler spray is of practical importance for two reasons. The first one is because the small droplets are subject to wind drift, distorting the application pattern. Second, large droplets possess greater kinetic energy which is transferred to the soil surface causing particle dislodgment and pudding that may result in surface crusting and runoff. We present in this paper a technique based on image processing for measure drop size distribution from agricultural sprinklers in automatic mode. This technique has the advantage of being a direct measurement method that allows to know the characteristics of agricultural sprinklers, which allows to study the effects of pressure and nozzle size on the distributions. The method was obtained using properties of the Fourier for correlation analysis in frequency domain. Results allow both farmers to change on existing irrigation systems to cope with field problems caused by low intake rates and runoff and development work to improve the uniformity of distribution of sprays from agricultural sprinklers. 650 $acorrelation 650 $airrigation 650 $asprinklers 650 $aIrrigação 650 $aMétodo 653 $aAgricultural instrumentation 653 $aAgricultural sprinklers 653 $aCorrelacao 653 $aImage 653 $aImagem 653 $aInstrumentacao agropecuaria 653 $aMethod 700 1 $aMINATEL, E. R. 700 1 $aMUCHERONI, M. L. 700 1 $aVIEIRA, S. R. 700 1 $aCRESTANA, S. 773 $tIn: SIMPOSIO BRASILEIRO DE COMPUTACAO GRAFICA E PROCESSAMENTO DE IMAGENS, 9., out. 1996, Caxambu, MG. Anais do SIBGRAPI 96. Caxambu: SBC/UFMG, 1996.
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