Dedicated accelerometers for satellite gravity gradiometry (GRADIO project) are described. The design profits from experience acquired with the CACTUS accelerometer payload of the satellite CASTOR-D5B and studies of highly accurate accelerometers for inertial navigation. The principle of operation, based on a three-axis electrostatic suspension of a cubic proof mass, is well suited for the measurements of accelerations less than 0.0001 m/sec/sec. A resolution better than 10 to the minus 11th power m/sec/sec/sq root Hz is expected.
ESA-NASA Workshop on a Joint Solid Earth Program
- Pub Date:
- October 1987
- Gravity Gradiometers;
- Satellite-Borne Instruments;
- Inertial Navigation;
- Instrumentation and Photography