Secure data transmission for satellite tests under space conditions
Positronic Hermetics is a flange with circular feedthroughs and D-Sub connectors adapted on both sides, which is required for the thermal vacuum chamber. In such a chamber, the environmental conditions in space are simulated (pressure and temperature) and the satellites are tested for various functionalities, which must be monitored electrically for optimum data protection. A connection is made to the satellite with the actual connectors on the satellite, whereby the cables must be routed out of the chamber. This is done via the flange, which uses a special sealing process using a NASA-approved epoxy resin.
The D-Sub connectors used are designed to withstand the conditions in the thermal vacuum chamber and thus ensure reliable data transmission. It is important to note that one flange is always required per satellite.
ACS temperature vacuum chamber for testing satellites - Image courtesy of Angelantoni Test Technologies Srl
https://www.acstestchambers.com
SAVAC is a smaller connector than XAVAC with two retaining screws. Both sides contain two threaded holes (socket screws) and an O-ring groove.
XAVAC is a larger connector than SAVAC with four retaining screws. There are four threaded holes, an O-ring groove and fixed socket screws on both sides.
SAVAC is a smaller connector than XAVAC with two retaining screws. Both sides contain two threaded holes (socket screws) and an O-ring groove.
The configuration of the HIVAC® Connector requires three separate units in order to function properly. The central unit is the feedthrough unit. This feedthrough requires two adapter units, one for the atmospheric side and one for the vacuum side. Both sides of the feedthrough contain four threaded holes and an O-ring groove and always has female/female contacts.
The redundant features of the connectors allow both sides of the connection to be mounted in the direction of the vacuum. The materials and surfaces as well as the technical properties of the connectors comply with the MIL-DTL-24308, Goddard and SPACE-D32 specifications.
If you would like general information about Hermetics and the associated products, please contact our team directly or arrange a callback.
If you require hermetics for one of your projects, the individual products or would like advice on the technology with regard to certain specifications, we will be happy to offer you a solution in person.
