Nanoparticle Field Emission Thrusters

Abstract

The invention provides a nanoparticle field launching thruster, and solves the problems that in an existing nanoparticle field launching thruster neutralization strategy, an electric field does negative work, and deflection is generated by a thrust. The nanoparticle field launching thruster has effective benefits of being light in weight, small in size, high in energy efficiency and stable in thrust. The nanoparticle field launching thruster mainly comprises a positive electrode 1, a ceramic insulated ring 2 and a negative electrode 3; the positive electrode 1 is of a circular hole structure;nanoparticles are stored in a negative electrode channel and are 100 nm order in grain size; and when an inducing voltage of 103 V order exists between the electrodes, the negative electrode nanoparticles complete the reverse charging on the inner surface of the positive electrode, and positive particles and negative particles complete the space self-neutralization after leaving the positive electrode and the negative electrode.

Description

technical field [0001] The present invention relates to the field of aerospace propulsion technology, in particular to a nanoparticle field emission thruster, in particular to a nanometer field emission thruster based on a reverse charging neutralization strategy. Background technique [0002] The nanoparticle field emission thruster is a propulsion power device used in micro-satellites. The thrust can be in the range of 1μN-100mN, and the specific impulse can be in the range of 100-10000s. In 2006, the propulsion concept of nano field emission was first proposed by the team of Louis M. From 2006 to 2009, the propulsion technology of nano field emission has been in the stage of theoretical optimization and experimental verification, and there is no report of neutralization strategy structure. It brings difficult problems to the engineering application of nanometer field emission thrusters. [0003] Until 2011, the document "David L et al., Simulation of Self-Neutralization ...

AI Technical Summary

Problems solved by technology

[0004] However, the time asynchronous strategy will cause the emitted charged particles to do negative work under the action of the electric field and reduce the thrust due to the instantaneous sign change of the potential difference sign; the space asynchronous strategy will cause multiple The emission plume field distribution of the nano field emission thruster is not uniform, and there is a thrust deflection angle

Moreover, the above two negative effects cannot be avoided at present

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