Abstract: An inertial measurement unit includes a first spherical gimbal comprising a first lattice structure including a first plurality of trusses defining a first plurality of interstitial voids between the first plurality of trusses. The inertial measurement unit further includes a second spherical gimbal comprising a second lattice structure including a second plurality of trusses defining a second plurality of interstitial voids between the second plurality of trusses. The first spherical gimbal is positioned inside of the second spherical gimbal and pivotally coupled to the second spherical gimbal to form a gap between the first spherical gimbal and the second spherical gimbal. The inertial measurement unit further includes an instrument mount positioned within and pivotally coupled to the first spherical gimbal.

Abstract: An inertial measurement unit includes a first spherical gimbal comprising a first lattice structure including a first plurality of trusses defining a first plurality of interstitial voids between the first plurality of trusses. The inertial measurement unit further includes a second spherical gimbal comprising a second lattice structure including a second plurality of trusses defining a second plurality of interstitial voids between the second plurality of trusses. The first spherical gimbal is positioned inside of the second spherical gimbal and pivotally coupled to the second spherical gimbal to form a gap between the first spherical gimbal and the second spherical gimbal. The inertial measurement unit further includes an instrument mount positioned within and pivotally coupled to the first spherical gimbal.

Abstract: Conductive cooled gimbaled inertial measurement units are disclosed herein. An example apparatus includes an inertial measurement unit, a gimbal assembly in which the inertial measurement unit is disposed, the gimbal assembly having gaps between each gimbal of the gimbal assembly, the gaps including a gas to conduct heat from the gimbal assembly, and an isothermal dome at least partially surrounding the gimbal assembly, the isothermal dome having a cooling tube disposed on an external surface of the isothermal dome to transfer heat from the gimbal assembly via conduction.

Abstract: Conductive cooled gimbaled inertial measurement units are disclosed herein. An example apparatus includes an inertial measurement unit, a gimbal assembly in which the inertial measurement unit is disposed, the gimbal assembly having gaps between each gimbal of the gimbal assembly, the gaps including a gas to conduct heat from the gimbal assembly, and an isothermal dome at least partially surrounding the gimbal assembly, the isothermal dome having a cooling tube disposed on an external surface of the isothermal dome to transfer heat from the gimbal assembly via conduction.