{"id":57771,"date":"2026-05-18T08:50:27","date_gmt":"2026-05-18T06:50:27","guid":{"rendered":"https:\/\/www.nae.fr\/2026\/05\/18\/design-and-experimental-validation-of-a-high-precision-pressure-regulation-unit-for-cold-gas-micro-propulsion\/"},"modified":"2026-05-18T08:50:27","modified_gmt":"2026-05-18T06:50:27","slug":"design-and-experimental-validation-of-a-high-precision-pressure-regulation-unit-for-cold-gas-micro-propulsion","status":"publish","type":"post","link":"https:\/\/www.nae.fr\/en\/2026\/05\/18\/design-and-experimental-validation-of-a-high-precision-pressure-regulation-unit-for-cold-gas-micro-propulsion\/","title":{"rendered":"Design and Experimental Validation of a High-Precision Pressure Regulation Unit for Cold-Gas Micro-Propulsion"},"content":{"rendered":"
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\n\nThe next generation of space-based gravitational wave observatories, such as LISA, TianQin, and Taiji, requires ultra-precise drag-free control and therefore micro-propulsion systems with thrust noise below\u00a00.1\u03bc\u2062N\/\u221aHz. This paper presents the design and experimental validation of a high-precision pressure regulation unit (PRU) for cold-gas micro-propulsion, guided by a requirement-driven analysis of pressure-induced thrust-noise sensitivity. A first-order mapping translates the mission-level thrust-noise constraint into a subsystem-level pressure-stability target, yielding an upper bound of about\u00a050Pa\/\u221aHz\u00a0and an adopted design budget of about\u00a040Pa\/\u221aHz. On this basis, a dual-stage architecture integrating solenoid pre-conditioning and piezoelectric fine regulation is developed. Stochastic simulations indicate that thermal drift dominates at very low frequency, whereas pressure fluctuation is the dominant contributor in the main\u00a00.01\u20131Hz\u00a0control band under the adopted budget.\n\n<\/div>\n<\/div><\/blockquote>\nPour en savoir plus :\u00a0Design and Experimental Validation of a High-Precision Pressure Regulation Unit for Cold-Gas Micro-Propulsion<\/a>","protected":false},"excerpt":{"rendered":"

The next generation of space-based gravitational wave observatories, such as LISA, TianQin, and Taiji, requires ultra-precise drag-free control and therefore micro-propulsion systems with thrust noise below\u00a00.1\u03bc\u2062N\/\u221aHz. This paper presents the design and experimental validation of a high-precision pressure regulation unit (PRU) for cold-gas micro-propulsion, guided by a requirement-driven analysis of pressure-induced thrust-noise sensitivity. A first-order […]<\/p>\n","protected":false},"author":1,"featured_media":55241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24,16],"tags":[35],"class_list":["post-57771","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite-spatial","category-rti","tag-actualites"],"acf":[],"yoast_head":"\nDesign and Experimental Validation of a High-Precision Pressure Regulation Unit for Cold-Gas Micro-Propulsion - NAE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nae.fr\/en\/2026\/05\/18\/design-and-experimental-validation-of-a-high-precision-pressure-regulation-unit-for-cold-gas-micro-propulsion\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Design and Experimental Validation of a High-Precision Pressure Regulation Unit for Cold-Gas Micro-Propulsion - NAE\" \/>\n<meta property=\"og:description\" content=\"The next generation of space-based gravitational wave observatories, such as LISA, TianQin, and Taiji, requires ultra-precise drag-free control and therefore micro-propulsion systems with thrust noise below\u00a00.1\u03bc\u2062N\/\u221aHz. This paper presents the design and experimental validation of a high-precision pressure regulation unit (PRU) for cold-gas micro-propulsion, guided by a requirement-driven analysis of pressure-induced thrust-noise sensitivity. 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