Electro-Optic Systems Slip Rings


Electro-Optic Systems Slip Rings

The dramatic increase of sophisticated gimbaled electro-optic sensor systems that provide battlefield information has led to major developments in supporting hardware. These EO systems require an enormous amount of data to be transmitted across the rotating axes as well as power and other signals. Moog has always been one step ahead of these requirements with the development of high bandwidth slip rings, twist capsules, fiber optic rotary joints and multiplexing technologies. 

Moog has participated in the development of many of the major airborne and groundbased EO systems. The Abrams Tank Commander’s Independent Thermal Viewer (CITV) has used our slip ring assembly to allow continuous rotation on the azimuth axes since the program’s inception. The Bradley armored vehicle also uses Moog’s slip ring on the azimuth axis of its Commander’s Independent Viewer (CIV); in addition the CIV uses a Moog’s twist capsule on the elevation axis. 

Moog’s slip rings and twist capsules are used extensively in airborne EO systems. The latest upgrade to the F-18 Hornet’s EO sensor suite, Advanced Targeting Forward Looking Infrared (ATFLIR), utilizes a Moog slip ring to allow continuous rotation in the roll axis and a twist capsule for scanning, or limited rotation, in the elevation and yaw axes. The Low Altitude Navigation and Targeting Infrared for Night (LANTIRN), and its successor Sniper, pods used for EO targeting and navigation on the F-16 uses Moog slip rings and twist capsules exclusively. The Predator UAV, LAMPS helicopter, and Apache helicopter all “see in the dark” because Moog hardware transmit data and power reliably.

For more information about how Moog's electro-optic slip rings can fit your specific application, contact our slip ring experts.


  • Multiple contact technologies suited for the application
    • Monofilament wire brush
    • Multiple precious metal fiber brush
    • Composite brush
  • Environmental sealing
  • EMI Shielding
  • FEA structure analysis
  • High shock and vibration capabilities
  • Wide operating temperature envelope
  • Vertical integration of position sensors and ancillary products
  • High frequency bandwidth
  • High reliability and life
  • Redundant bearing designs

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Typical Applications

  • Blade de-ice
  • Blade position
  • Tip lights
  • Flight controls
  • FLIR systems
  • Target acquisition systems
  • Weapon stations