Automated electric charge measurements of fluid microdrops using the Millikan method

Autor:	Martin L. Perl, Irwin T. Lee, Eric R. Lee, Valerie Halyo
Rok vydání:	2004
Předmět:	Physics::Fluid Dynamics Physics Classical mechanics Electric field Drop (liquid) General Engineering Oscillating electric field Electron Mechanics Electric charge Charged particle
Zdroj:	Metrologia. 41:S147-S158
ISSN:	1681-7575 0026-1394
Popis:	Automated measurements of the electric charge of fluid microdrops precise to up to 0.016 of an electron charge have been made using machine-vision systems to observe the motion of fluid microdrops in air under the influence of an oscillating electric field. The fluid drop diameters have ranged from 7 to 25 mu m with smaller diameter drops being measured to higher precision. The experimental runs performed for the purpose of attempting to find isolated fractionally electrically charged particles have measured the charges of tens of millions of fluid microdrops using piezoelectrically driven drop-on-demand inkjet-like droplet ejectors as fluid drop sources.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5774d54de2cd4638c81025875474a0b0 https://doi.org/10.1088/0026-1394/41/5/s05 Zobrazit plný text záznamu