STRAPDOWN INERTIAL NAVIGATION SYSTEM Russian patent published in 2017 - IPC H01S3/83 

FIELD: physics, measurement equipment.

SUBSTANCE: invention consists of a sensing elements unit, a computing navigation system, at that, the sensing elements unit consists of an accelerometers unit, an accelerometer signal converter and a laser gyro unit with a ring laser. The ring laser consists of a resonator, a vibrating hanger and a photodetector, a piezoelectric transducer and a mixing prism. Due to the presence of four slots in the ring laser housing, in the walls of the hole for resonator housing mounting on the vibrating hanger, arranged to provide support flat springs fixation, a possibility is achieved to increase the length of the support flat springs, which in turn increases the amplitude of vibrating hanger swinging, and thus eliminates the phenomenon of opposing waves synchronization and reduces the random error component value of the laser gyro.

EFFECT: invention refers to measuring equipment, to the field of rotation conversion into electrical signal by means of gyroscopes using a ring laser as the sensitive element, and may be used in navigation systems.

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