Improved ramberg vacuum-tube accelerometer developed by NBS

Recent research in the Engineering Machanics Section of the Rational Bureau of Standards (NBS) has resulted in an improvement of the Ramberg vacuum-tube accelerometer which NBS developed in 1946 for the Navy´s Bureau of Aeronautics with the co-operation of Sylvania Electric Products, Inc. The new pickup provides more sensitive and reliable acceleration measurements than did the earlier version which, despite slight erratic changes during its operation, has been successfully applied to both field and laboratory acceleration measurements. Among such uses have been acceleration measurements on pilot ejection devices for high-speed aircraft, in landing impact tests for model aircraft, as well as on aircraft in actual flight.