NAVIGATION SYSTEM AND HOUSING OF NAVIGATION SYSTEM Russian patent published in 2019 - IPC G01C21/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used in aerospace flight control systems when measuring angular velocities and linear accelerations, for example, as part of a spacecraft motion control system. Navigation system comprises housing, four fiber-optic gyroscope, four angular accelerometers, four linear accelerometers and electronics unit located in housing cavity. At that, housing has shape approximating to four-sided truncated pyramid, with inner cavity and sockets for arrangement of fiber-optic gyroscopes and accelerometers, at that, gyroscopes are equipped with protective covers and fixed so that their measuring axes are located uniformly along generatrixes of circular cone with half angle at apex of axial section equal to arccos(1/√3), and four linear accelerometers and four angular accelerometers are located in the inner cavity of the housing under each of the fiber-optic gyroscopes and their sensitivity axis coincide, and the electronics unit comprises four channels for receiving and processing information and two interfacing units. Navigation system housing made in the form of bearing bracket having the shape approximating to tetrahedral truncated pyramid with inner cavity, wherein in side faces of housing there are sockets for arrangement of gyroscopes, angular and linear accelerometers, having holes for attachment by one gyroscope and one angular and linear accelerometer on each side face, wherein the sockets are configured to fix gyroscopes, angular and linear accelerometers such that their measuring axes are uniformly distributed along the generatrixes of the circular cone with a half angle at the apex of the axial section equal to arccos(1/√3).

EFFECT: high accuracy characteristics of the device and high reliability of the navigation system.

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