구형파 펄스를 인가한 정전분무 장치의 대전량 특성

Charging Characteristics of Electrostatic Sprayer Applied Square Pulse

  • 박승록 (금오공대 전자공학부) ;
  • 문재덕 (경북대 공대 전자전기공학부)
  • 발행 : 2003.12.01

초록

In this study, new type of induction charging system for electrostatic spraying was manufactured and proposed to improve the electrical safety and charging efficiency. And parameters of proposed system to generate the maximum deposition current with electrical safety were selected and investigated. The selected parameters were frequency of square pulse and thickness of insulation material, outer diameter of device and thickness and positions of electrode. Charging quantity of water drop was measured by deposition current detected from sensing plate indirectly. The maximum deposition current for each parameter were 3.5[uA] at the frequency of 15[kHz] and thickness of 0.25[mm] insulating layer. And maximum deposition currents were 2.8[uA] and 3.0[uA] at 25[mm] outer diameter of charging device and 0.25[mm] thickness of electrode each. Effects of electrode position from spraying nozzle on deposition current was a little.

키워드

참고문헌

  1. K. Asano, 'Progress in Electrostatic Pesticide Spraying', Proceedings of the Institute of Electrostatics Japan, 8, 3, 182-191, (1984)
  2. I. Umetsu, 'Pesticide Spraying and Electrostatics', Proceedings of the Institute of Electrostatics Japan, 22, 1 (1998) 6-11
  3. Jen-Shih Chang, Arnold J. Kelly and Joseph M. Crowley, 'Handbook of Electrostatic Processes', Marcel Dekker, Inc. (1995) 413-440
  4. R. C. Anantheswaran and S. Edward. Law, 'Electrostatic Precipitation of Pesticide Sprays onto Planar Targets', Transactions of the ASAE, Vol. 24, No. 2 (1980) 273-276, 280
  5. S. Edward Law, 'Electrostatic Pesticide Spraying: Concepts and Practice', IEEE Trans. on IA, Vol. 19, No. 2 (1983) 160-168
  6. J. R. Lake, 'The Deposition of Electrostatically Charged Sprays on Parts of Targets Shaded from the Spraying' Journal of Agricultural Engg. Research, 39 (1988) 9-18 https://doi.org/10.1016/0021-8634(88)90162-X
  7. H. Almekinders, H. E. Ozkan, D. L. Reichard, T. G. Carpenter and R. D. Brazee, 'Spray Deposit Patterns of an Electrostatic Atomizer' Transactions of the ASAE, Vol. 35, No. 5 (1992) 1361-1367 https://doi.org/10.13031/2013.28741
  8. D. K. Giles and S. E. Law, 'Dielectric Boundary Effects on Electrostatic Crop Spraying' Transactions of the ASAE, Vol. 33, No. 1 (1990) 2-7 https://doi.org/10.13031/2013.31284
  9. S. Edward Law and Steven C. Cooper, 'Depositional Characteristics of Charge and Uncharged Droplets Applied by an Orchard Air Carrier Sprayer', Transactions of the ASAE, Vol. 31, No. 4 (1988) 984-989 https://doi.org/10.13031/2013.30810
  10. P. Krishnan, T. H. Williams and L. J. Kemble, 'Spray Pattern Displacement Measurement Technique for Agricultural Nozzles Using Spray Table', Transactions of the ASAE, Vol. 31, No. 2 (1988) 386-389 https://doi.org/10.13031/2013.30719
  11. E. Franz, R. D. Brazee, T. G. Carpenter and D. L. Reichard, 'Model of Plant Charge Induction by Charged Spray', Transactions of the ASAE, Vol. 30, No. 2 (1987) 328-331 https://doi.org/10.13031/2013.31948
  12. S. Edward Law and Henry D. Bowen, 'Hydrodynamic Instability of Charged Pesticide Droplets Settling from Crop-Spraying Aircraft: Theoretical Implications', Transactions of the ASAE, Vol. 31, No. 6 (1988) 1689-1691 https://doi.org/10.13031/2013.30921