A thrust automatic adjustment circuit of pulse thruster

Abstract

The invention provides an automatic thrust regulating circuit of a pulse type thruster, and the automatic thrust regulating circuit can count real discharge times of the pulse type thruster, accurately judges the service life of the pulse type thruster, can regulate average thrust of a thruster system, and keeps the average thrust of the thruster relatively constant. Real discharge times of the pulse type thruster are counted by pulse current in a detecting loop, so that the problem that counting for discharge times is inaccurate as a solid-state switch triggers signal pulse counting is solved, and accurate measurement on the service life of the pulse type thruster is realized. The real working times of the thruster are compared with circuit working times, and a controller regulates average thrust of the thruster system by regulating working frequency of a circuit system, so that the average thrust is kept relatively constant, and the thrust function of the pulse type thruster is performed better.

Description

technical field [0001] The invention belongs to the technical field of spacecraft propulsion, and in particular relates to an automatic thrust adjustment circuit of a pulse thruster. Background technique [0002] In recent years, satellites have been developing in the direction of low cost and distributed. Micro-nano satellites have the advantages of low cost, short development cycle, strong expansion capability, and flexible launch methods. Micro-nano satellites have important application prospects and strategic significance for both civilian and military applications. The rapid development of micro-satellites and micro-nano-satellites has put forward high requirements for propulsion. Vacuum arc thruster (VAT) has become an ideal type of electric propulsion for micro-nano satellites due to its advantages of small mass, high specific impulse and simple structure. Micro propulsion can mainly meet the propulsion needs of micro-nano satellites, mainly including: (1) damping c...

AI Technical Summary

Problems solved by technology

In the traditional vacuum arc thruster PPU, the charging and discharging of the circuit is controlled by a solid-state switch, but the number of pulses that trigger the solid-state switch does not represent the actual number of times the thruster works, but the number of times the circuit works, so the signal pulses are counted through the solid-state switch It will lead to inaccurate counting of the number of discharges, and cannot accurately measure the life of the vacuum arc thruster; in addition, the average thrust of the thruster system cannot be adjusted, and the average thrust of the thruster cannot be kept relatively constant, and the vacuum arc thruster cannot be better implemented. advance function

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