High altitude simulation experiment system for low power hydrazine arcjet

A high altitude simulation experiment system for low power hydrazine arcjet was presented. The elements in this system including vacuum facility, propellant feed system, power control unit, full elastic micro thrust measurement equipment, data acquisition system etc. were depicted in details. To meet the special demands in low power arcjet high altitude simulation experiment, the working process and principle of the propellant feed system, the full elastic steady weighting method micro flow measurement system and the full elastic micro thrust measurement equipment were emphasized. Tests to validate the system were conducted in this system. The results show that the high altitude simulation experiment is steady, reliable and competent for low power hydrazine arcjet high altitude simulation experiment.