Airborne Gravimetry Program.
Final rept. 27 Aug 65-30 Oct 68,
MASSACHUSETTS INST OF TECH CAMBRIDGE MEASUREMENT SYSTEMS LAB
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The report summarizes the studies and experimental work on airborne gravimetry systems. The analytical studies identify navigation and stabilization requirements, and present methods for reducing airborne gravimeter readings to gravity estimates, including special considerations involved with the use of a gyro accelerometer for the gravimeter. A survey of candidate gravimeters demonstrates the fairly wide choice available from accelerometers employed by inertial guidance systems. Development and test of an experimental system using a type 25 pendulous integrating gyro accelerometer are described, flight tests summarization and reduced data presented. Results of March, 1968 flights show a bias error of 6.2 milligals a standard deviation of 4.7 milligals for fourteen lines of data. Classified data are presented in a separate volume. Author
- Test Facilities, Equipment and Methods