| 摘要 |
FIELD: testing equipment. SUBSTANCE: equipment includes vacuum chamber to place tested spacecraft, leak detector and three valves connected to unit measuring lack of pressure tightness manufactured in the form of measuring vessel which houses adjustable check leak and pressure transducer, two pipe-lines located inside vacuum chamber connected with one ends via straightway elements of vacuum chamber to proper valves. The other end of first pipe-line is joined to internal space of compartment. The other end of second pipe-line is freely anchored in communication zone of internal space of compartment. Lengths, flow sections and hydraulic resistances of valves with pipe-lines are equal. Pneumatic and hydraulic systems, aggregates and pipe-lines of spacecraft are arranged both inside and outside of compartment. EFFECT: increased authenticity of testing. 1 cl, 1 dwg |
