Northrop Grumman's Hemispherical Resonator Gyro Marks 30 Million Operating Hours in Space
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"Our HRG is considered the gold standard of sensors due to its reliability and performance during critical space missions," said
The HRG's simple construction makes it highly reliable and naturally radiation-hardened in any space environment. Additionally, the gyro's small size and light weight lends itself to an inertial reference unit form factor that is easily incorporated into a spacecraft's design.
Launched aboard more than 145 spacecraft, the HRG technology has been used in commercial, government and civil space missions for domestic and international customers. The HRG technology is based on scientific observations made more than 100 years ago of a "ringing" wineglass that produces changing sounds depending upon its rate of rotation.
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