An Approach to the Characterization of Dynamic Seal for Torque Sensitive Application

Purging and sealing the stabilized electro-optic payload is required for satisfactory performance at low temperatures. The gimbal joints are to be sealed with dynamic seal whose performance shall restrict the sealability and drivability of these dynamic joints. A definite and concise approach shall help in characterizing these dynamic seal for optimizing their behavior to the system. A dynamic seal test set-up is configured and realized to test the dynamic joint variables. The variables are varied through the test cases and the most optimum joint variable is chosen which is tested at the operating temperature limits and found to deliver satisfactorily.