A laser propulsion method based on phased array control

A phased array and laser technology, applied in the use of photons, thrust reversers, and plasma, etc., can solve the problems of low efficiency and large proportion of chemical fuel weight.
CN109707585BActive Publication Date: 2020-07-07ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2020-07-07

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Abstract

The invention discloses a laser propulsion method based on phased array control. The laser propulsion method based on phased array control comprises steps that a phased array is controlled by a control unit, and a laser beam is accurately projected under the action of the phased array onto a transducer connected to an object to be propelled; and light energy of the laser beam is converted by a transducer into kinetic energy to push the propelled object, the propelled object continuously feeds back information of itself to a receiving unit and transmits the information to the control unit during the pushing process, and the control unit adjusts a control signal according to the feedback signal to control the phased array, so that the beam is always accurately projected onto the transducer.By means of the laser propulsion method based on phased array control, angle scanning by precise control of the beam through the phased array is achieved; and compared with a traditional mechanical rotary laser propulsion, the method has the advantages such as flexible rotation, high rotational sensitivity and high rotation speed.
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Description

technical field

[0001] The invention relates to the field of laser propulsion, in particular to a laser propulsion method based on phased array control. Background technique

[0002] Laser propulsion is a technology that uses laser light pressure or energy conversion to propel a spacecraft. In the chemical fuel propulsion currently used, the weight of the chemical fuel carried is very large, and most of the energy is consumed in the propulsion process, and the efficiency is very low. Laser propulsion is to propel spacecraft through light pressure or laser conversion energy. Compared with chemical propulsion, the load ratio is higher, and it can break through the maximum speed limit of chemical propulsion aircraft. It can realize a wider range of adjustment of specific impulse and impulse coupling coefficient according to needs. . The phased array uses the array unit to control the direction of the beam. The light emitted by each emitting unit is coherent. By controlling th...

Claims

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