Date: 7th March 2019 Venue: LOMAA Hall Time: 1:30 PM to 3:30 PM
Coordination: Mechanical Engineering Students under the guidance of HoD, ME.
The race to space has been increasingly demanding for miniaturization of mechanical components without losing their performance
capabilities. This has been applicable to the field of inertial navigation
sensors as well. Development of various inertial sensors based on
precision engineering has played an important role in meeting these great
ISRO Inertial Systems Unit (IISU) has been working on sensors like DTG, SA, CSA etc., that contain very thin flexures having absolute thickness of the order of 20 µm or less with very tight tolerances. Precision manufacturing of these flexures are no easy task as they call for specialized high precision manufacturing equipments and conventional and unconventional machining process like jig boring, electrical discharge machining, cylindrical grinding, chemical machining, ultrasonic machining, robotic-micro sand blasting etc. The tolerances for many of the critical features are as low as 1 µm.
MEMS process based microstructures are also realized in ISRO Inertial Systems Unit, and this has resulted in achieving low power, light weight, compact and highly reliable systems. Design challenges in realizing these sensors, material selection and state of the art manufacturing process involved are covered in this lecture.
Speaker: Shri. Joji J Chaman, Group Director, Mechanical Design and Fabrication, ISRO Inertial Systems Unit, Vattiyoorkavu, Thiruvananthapuram 695013.