Simulation and experiment of field emission based on carbon nanotubes

Article type: Research Article

Authors: Hu, Jiaming^a | Bai, Baodong^a; | Chen, Dezhi^a | Guan, Rongyu^a | Dan, Fenglinzi^a

Affiliations: [a] School of Electrical Engineering, Shenyang University of Technology, Shenyang, China

Correspondence: [*] Corresponding author: Baodong Bai, Shenyang University of  Technology, China. E-mail: baibd@sut.edu.cn

Abstract: In view of the bearing current of motor, a method of suppressing the bearing current using the field emission characteristics of carbon nanotubes is proposed. Firstly, the advantages of carbon nano-materials and their field emission properties are introduced. Secondly, the influence of the distance between the emitter tips and the anode metal plate on the electric field intensity is analyzed by software simulation. Finally, field emission experiments of TNF300 type carbon nanotube fibers under non vacuum conditions were carried out by means of probes, microscopes and other experimental equipment. After obtaining the voltage and current of carbon nano-materials at different distances, the volt-ampere characteristic curves and the field emission characteristic curve were drawn, and the experimental results from different distances were compared and analyzed.

Keywords: Field emission, carbon nanotubes, bearing current suppression, simulation and experiment

DOI: 10.3233/JAE-171199

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 2, pp. 695-702, 2019