1mφ Space Chamber

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

System Architecture

1mφ Space Chamber System Architecture

Specification

vacuum vessel shape horizontal cylindrical shape
inner dimensions with shroud: 1,000 mm (dia) × 1,380 mm (L)
without shroud: 1,280 mm (dia) × 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.