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Measurement and classification methods using the ASAE S572.1 reference nozzles

100%

Fritz B. K., Hoffmann W. C., Czaczyk Z., Bagley W., Kruger G., Henry R.

Journal of Plant Protection Research

2012

tom 52

nr 4

An increasing number of spray nozzle and agrochemical manufacturers are incorporating droplet size measurements into both research and development. Each laboratory invariably has their own sampling setup and procedures. This is particularly true about measurement distance from the nozzle and concurrent airflow velocities. Both have been shown to significantly impact results from laser diffraction instruments. These differences can be overcome through the use of standardized reference nozzles and relative spray classification categories. Sets of references nozzles, which defined a set of classification category thresholds, were evaluated for droplet size under three concurrent air flow velocities (0.7, 3.1 and 6.7 m/s). There were significant, though numerically small, differences in the droplet size data between identical reference nozzles. The resulting droplet size data were used to categorize a number of additional spray nozzles at multiple pressure and air flow velocities. This was done to determine if similar classifications were given across the different airspeeds. Generally, droplet size classifications agreed for all airspeeds, with the few that did not, only differing by one category. When reporting droplet size data, it is critical that data generated from a set of reference nozzles also be presented as a means of providing a relative frame of reference.

Data classification from cartographic point of view

72%

Galant K.

Electronic Journal of Polish Agricultural Universities. Series: Geodesy and Cartography

2006

tom 09

nr 4

Methods of classification of honeybee races using wing characters - a review

72%

Kauhausen D., Keller R.

Journal of Apicultural Science

2003

tom 47

nr 1

Ograniczanie wyników

1 Electronic Journal of Polish Agricultural Universities. Series: Geodesy and Cartography

1 Journal of Apicultural Science

1 Journal of Plant Protection Research

1 Bagley W.

1 Czaczyk Z.

1 Fritz B. K.

1 Galant K.

1 Henry R.

1 Hoffmann W. C.

1 Kauhausen D.

1 Keller R.

1 Kruger G.

1 2012

1 2006

1 2003

Wyniki wyszukiwania

Measurement and classification methods using the ASAE S572.1 reference nozzles

Data classification from cartographic point of view

Methods of classification of honeybee races using wing characters - a review