This is the amplifier oscillator that was part of the a vibrating string accelerometer. This device is based on the fact that the frequency of a vibrating string is proportional to the suspended mass. A current passed through a wire in the presence of the magnetic field causes the wire to vibrate at its resonant frequency like a violin string. Special circuitry measures the change in vibrating frequency, due to a change in weight, and thus acceleration.
This is a miniaturized version of the instrument originally developed for use in ICBM's. It served as the prototype for an accelerometer used by Apollo 17 astronauts to measure the Moon's gravity. Dr. Alexander Voutas, its inventor, donated it to the Museum.
Display Status
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin
United States of America
Type
EQUIPMENT-Electronics
Manufacturer
Arma-Bosch Co.
Dimensions
3-D: 4.4 × 4.1 × 2.5cm (1 3/4 × 1 5/8 × 1 in.)
Materials
Ceramic
Aluminum
Copper Alloy
Plastic
Synthetic
Inventory Number
A19900048000
Credit Line
Gift of Alexander Voutsas.
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
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