Large-scale air bearing translation device driven by plasma propulsion

Abstract

The invention relates to a large-range gas floating translation device based on plasma boosting driving and belongs to the field of aerospace direction ground physical simulation and space gesture adjusting. The gas floating translation device is mainly used for achieving translation in a gas floating environment on a two-dimension plane. The gas floating translation device comprises a plasma driver, a translation table body, a measuring mechanism, a controller and an electric energy converting device. A plane grating sensor measures current gesture signals in real time and sends the signals to the controller. The controller carries out computing and sends controlled quantity to each plasma booster which is used as an executing mechanism, and accordingly free motion of the translation table body on the two-dimension plane in three freedom degrees of X, Y and Rz can be achieved. The large-range gas floating translation device has the advantages of being high in system load ratio, high in efficiency and long in working time.

Description

Technical field [0001] The invention belongs to the field of aerospace direction ground physical simulation and space attitude adjustment, and relates to a large-scale air floatation translation device driven by a plasma thruster. Background technique [0002] In today's aerospace field, the attitude adjustment of spacecraft or ground simulation equipment is generally realized by traditional jet methods. The traditional air-jet method needs to carry a cylinder and use the gas in the injected cylinder to adjust the attitude, but the gas in the cylinder is limited, and the gas density is small, the space is large, and the air-jet method has a small output. However, plasma thrusters use laser beams to irradiate the target surface to generate supersonic jets of plasma to generate thrust. Air can be used as a medium in the atmosphere, and suitable propellants can be selected as a medium in space. In this way, in the atmosphere, the plasma thruster can directly absorb the outside air ...

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Problems solved by technology

[0003] After checking the relevant literature, 200720173799.X discloses a two-degree-of-freedom air flotation table powered by a high-pressure gas source. Both the air flotation and the actuator use the gas in the high-pressure gas cylinder, resulting in a very short simulation time, which cannot meet the needs of spaceflight. The need for long-term simulation of the device

[0004] 200410009086.7 discloses a rigid body space position and attitude measurement device and its measurement method, which uses a wire-drawn encoder to realize a contact-type rigid body space position and attitude measurement. This measurement method undoubtedly brings unnecessary interference to the system and affects the The quality of the simulation

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