Northrop Grumman Guidance and Electronics Company, INC. Search this
Materials:
Case: Metal, probably aluminum.
Wire connector, Iron alloy, plastic, quartz, gold plating
Dimensions:
3-D: 11.1 x 11.7 x 6.7cm (4 3/8 x 4 5/8 x 2 5/8 in.)
Type:
SPACECRAFT-Uncrewed-Guidance & Control
Country of Origin:
United States of America
Summary:
This is the housing for a Hemispherical Resonator Gyro (HRG). An HRG senses acceleration by the change in phase of vibration of a cup-shaped resonator, similar to the way a wine-glass resonates when rubbed by a wet finger. The device is rugged and accurate, and it has replaced other models of mechanical gyroscopes on most deep-space missions, as well as in other applications.
Northrop Grumman donated this to the Museum in 2011.
