Gyroscopes, or Gyros, are critical rotation sensing elements used in navigation systems for manned and unmanned aircraft, spacecraft, marine vehicles and surface vehicles. Such systems will use gyros in inertial navigation systems (INS), attitude and heading reference systems (AHRS) or inertial measurement units (IMUs). In addition, gyroscopes are important elements in platform stabilization systems (i.e. antenna stabilization), and where accurate pointing and/or targeting is required.
Honeywell has been an industry leader in gyroscope product development since Elmer Sperry invented the gyrocompass in 1910. We have extensive domain knowledge in gyro technologies including spinning mass mechanical gyros, fiber-optic gyros (FOGS), Micro-electro-mechanical (MEMS) gyros and ring laser gyros (RLG). Today, Honeywell's GG1320 digital ring laser gyro (RLG) is the industry standard for precision rotation measurement. It is an affordable high performance inertial sensor with the electronics and ring laser gyro packaged into an easy-to-use compact unit. The user supplies an input voltage and, under rotation, the GG1320 provides a compensated rotation output.
The principle of operation of a RLG is that counter-propagating laser beams have different frequencies with the difference dependent on rotation rate. Measurement of this difference provides the rotation angle or rotation rate about the RLG's sensitive axis. Honeywell's GG1320 RLG has demonstrated capability of measuring an arc-second of rotation.
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