HERMETIC CONNECTORS FOR SPACE APPLICATIONS

HERMETIC CONNECTORS FOR SPACE APPLICATIONS

Martec space application case studies describe what can be achieved.

A GREAT REACTION FROM SUNSPACE AND INFORMATION SYSTEMS

Manufacturing challenges

 

The RWSS reaction wheel consists of a momentum wheel mounted on a brushless DC motor and enclosed in a mechanical housing. The mechanical housing had to be sealed to maintain atmospheric pressure inside, to protect the lubricant of the wheel bearings and so ensure an operational lifetime of at least fi ve years.

The design team needed to find a way to connect the wires of the brushless DC motor inside the housing to the external reaction wheel drive electronics without compromising the pressure seal. Experience had shown them that from a starting internal pressure of 1atm, the end-of-life internal pressure needed to be at least 0.1atm after fi ve years as this is
the minimum required to maintain the lubrication.

 

Designed

The SunSpace design team selected the Martec 5425-14-19-PN hermetically sealed MIL-DTL-26482 circular connector (19-way male jam nut) for the task. They built a qualifi cation model of the reaction wheel using the Martec connector and subjected it to a range of product level and system level environmental tests.

 

Tested

  • Vacuum
  • Thermal cycle
  • Vibration

The tests verified that the leakage rate met the specification and that the seal would not be compromised by the launch and orbit environments.

 

Delivered

A satellite fitted with three RWSS reaction wheels, each using the Martec hermetically sealed connector, was launched in the first half of 2007.


Other News

New
CXL 900-8C OMNI ANTENNA STURDY, 8dBd GAIN BASE ST.. In this newsletter you can read about our newly released Omni Antenna: CXL 900-8C...
Haber Detayı
New
SOLDERLESS SURFACE MOUNT MICRO D (SSMM).. Having introduced our Solderless Surface Mount Micro D (SSMM) product in 2019...
Haber Detayı
New
A Series Family.. Check out our wide range of power and signal connectors for heavy duty applications...
Haber Detayı
New
FLOS Y SERIES.. Push-Pull or Break-Away Amphenol LTW - FLOS Y Series...
Haber Detayı
New
HOW POSITRONIC MEETS THE NEEDS OF DATACENTERS.. As datacenter continue to surge in popularity, their energy needs are escalating as well. In fact, many large data centers require as much electricity as an entire city!..
Haber Detayı
New
AMPHENOL MARTEC HIGH TEMP INTERCONNECTS UP TO 960.. 5th November in the UK is Bonfire Night, when a cold dark evening is heated up by people coming together for parties around bonfires and enjoying firework displays...
Haber Detayı
New
3-3-3 SINGLE PAIR ETHERNET.. Freedom of Choices and Budgets | Amphenol LTW..
Haber Detayı
New
MATE UNDERWATER WITH DeepTronica® | Amphenol LTW.. Amphenol LTW is adding underwater connectors (up to 6000m depth) to its cnnectivity portfolio...
Haber Detayı
New
CHOOSE AMPHENOL PCD M12883 QUALIFIED RELAY SOCKET.. Amphenol PCD’s M12883 Qualified Relay Sockets feature sealed interfaces, eliminating air paths and providing protection against moisture and degradation...
Haber Detayı
Contact Form