HERE's a report documenting
the thermal vacuum chamber calibration of the first AMSUs.
Additional environmental tests of the coupled telescope and instrument assembly will occur in a giant
thermal vacuum chamber at Johnson in 2017.
The Optical Telescope Element is shipped to Johnson Space Center for cryogenic testing in a giant
thermal vacuum chamber called «Chamber A.» The spacecraft bus is connected to the sunshield.
They also have been tested successfully in a JPL
thermal vacuum chamber, with total vacuum conditions and temperatures of minus 76 degrees Fahrenheit (minus 60 degrees Celsius) to simulate the conditions of space.
Not exact matches
But the
vacuum chamber was not designed to allow lasers in; it was surrounded by metal mesh and intended for
thermal ionization, in an oven.
Following qualification testing, which included random vibration and a simulated trip into space in a
thermal /
vacuum chamber, and an intensive calibration effort, on July 20th MSSS delivered the camera to Lockheed - Martin Space Systems of Littleton, Colorado, where it was checked out and then mounted onto the Juno spacecraft (see Figure 2).
The telescope's combined science instruments and optical element recently completed about 100 days of cryogenic testing inside Johnson's
Chamber A, a massive
thermal vacuum testing
chamber at the center.
We demonstrate peak - to - valley (PV) temperature stability of better than 5 mK within the MINERVA - Red
vacuum chamber, which is located inside the
Thermal Enclosure, despite large temperature swings in the ambient laboratory environment.
I initially pointed out that satellite makers do
thermal testing of the satellites in a
vacuum chamber whose walls are cooled by liquid nitrogen to simulate the heat - transfer conditions of space: no conductive / convective transfer, and virtually no ambient
thermal radiation.