1mφ Space Chamber

The 1mφ space chamber is used to simulate environmental conditions to which a spacecraft is exposed in space, such as high vacuum and cryogenic temperature, for the purposes of verifying the endurance, function, and temperature profile of a test item. It has a φ1 m × 1.38 m (L) chamber for the test item, where tests on very small satellites (50 cm³) or spacecraft equipment can be performed.
It simulates the high vacuum and cryogenic environments in space respectively with vacuum pumps and shrouds cooled by LN2 (cryogen) installed in the chamber. A solar simulator, which is installed in both 13mφ and 8mφ space chambers, is not installed in this chamber, but a high temperature environment can be simulated with IR heaters instead.

System Architecture

1mφ Space Chamber System Architecture

Specifications

Vacuum vessel Shape Horizontal cylindrical shape
Inner dimensions With shroud: φ1,000 mm × 1,380 mm (L)
Without shroud: φ1,280 mm × 3,200 mm (L)
Vacuum pressure / pumpdown time 1.3 × 10-3 Pa (1 × 10-5 Torr) or less / within 4h
Shroud temperature -170°C or less, or ambient temperature

Actual Applications

Equipment for Quasi-zenith Satellite, equipment for ISS/JEM, small satellites developed by universities, etc.