ISRO Inertial Systems unit (IISU) was established in July 1990 as an independent Unit of ISRO with a mandate to carry out research and development towards inertial sensors and systems and allied satellite elements for various ISRO missions and to ensure the needs of ISRO Launch Vehicle and Satellite programmes are met in terms of quantity, quality and schedule.
The Unit is located at Vattiyoorkavu complex of ISRO at Trivandrum. A Beryllium Machining Facility (BMF) which is recently renamed as Sintered Materials Machining Facility (SMMF) at New Mumbai is also operated by the Unit through the Department of Atomic Energy (DAE).
It is responsible to realise the wide variety of Inertial Systems, actuators and mechanisms for Indian Launch Vehicles and Spacecrafts.
IISU has total capability to design, engineer, develop, qualify and deliver the inertial systems, actuators and mechanisms to entire Indian space programme.
IISU has developed capability for inertial sensors, inertial systems, navigation systems and flight software.
In actuator area IISU has full capability towards various sizes of Momentum Wheels, Reaction Wheels and Magnetically Suspended Reaction Wheels.
IISU has capability to develop integrated checkout systems.
IISU has built up capacity to realise 3 and 4 systems for launch vehicle and spacecraft systems, which will be enhanced to 5, 6 system for launch vehicle and spacecraft respectively in 10th plan period.