| 摘要 |
#CMT# #/CMT# The emitter (100) has an external part (110) with a polished external surface (111) and an internal surface (112), and an internal part (120) with an internal surface (121) and an external surface (122). The surfaces (112, 122) determine an internal reservoir (160) and a slit (170), and metallic studs (123-125) are formed on the surface (122) for defining a thickness of the slit between 1 and 2 micrometers by deposit of the internal part. The external part is applied against the internal part by a connection unit (140) with interposition of a sealing hold (130). #CMT#USE : #/CMT# Field-effect emitter for a field emission electric ionic propulsion and a colloid ionic propulsion (claimed). #CMT#ADVANTAGE : #/CMT# The configuration of the emitter permits implementation of the ionic propulsion presenting the force ranging from 5 to 10 milli-Newton, while authorizing the fabrication of the emitter in a simple and reliable manner and guaranteeing a high precision of realization of the emitter. The configuration of the emitter permits operation of the emitter on the ground in horizontal or vertical shot position and in microgravity space. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an axial semi-sectional view of main parts of a field-effect emitter. 100 : Field-effect emitter 110 : External part 111 : Polished external surface 112 : Internal surface 120 : Internal part 121 : Internal surface 122 : External surface 123-125 : Metallic studs 130 : Sealing hold 140 : Connection unit 160 : Internal reservoir 170 : Slit #CMT#METALLURGY : #/CMT# The metallic studs and the sealing hold are made of nickel, and the internal and external parts are made of nickel super alloy and soaked stainless steel. |
