STRAPDOWN INERTIAL-SATELLITE SYSTEM Russian patent published in 2020 - IPC G01C21/00 

FIELD: instrument engineering.

SUBSTANCE: invention relates to navigation gyroscopic instruments and can be used in systems of inertial navigation. Space-free inertial-satellite system comprises a body, covers, three gyroscopes, three accelerometers and an electronics unit. Body is made in the form of a bracket having a shape approximating to a rectangular parallelepiped, in the inner cavity of which there are accelerometers and an electronics unit, and gyroscopes and accelerometers are installed so that their measuring axes are orthogonal. Space-free inertial-satellite system is equipped with a unit of secondary power supply located in the internal cavity of the housing and fixed on one of the covers closing upper and lower faces of the housing. Gyroscopes are installed in fiber-optic meter of angular speed located outside housing, and accelerometers are fixed on additional bracket, wherein inner cavity of housing is divided by partition into two cavities, in one of which there are accelerometers and electronics unit, and in second – unit of secondary power supply. Additional bracket is made of material with low heat conductivity. Each accelerometer is installed in a metal screen made in the form of a cylinder.

EFFECT: technical result consists in reduction of temperature error and increase in stability of output signal.

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