Closed, self-contained ballistic apogee detection module and method

    公开(公告)号:US11125543B1

    公开(公告)日:2021-09-21

    申请号:US16398497

    申请日:2019-04-30

    摘要: A closed, self-contained ballistic apogee detection module for use in a projectile, such as a rocket, mortar round, or artillery round, fuses data from multiple built-in sensors, such as an accelerometer, a magnetometer, and a gyroscope, and processes the data using a microprocessor through a custom quaternion extended Kalman filter to provide accurate state and orientation information about the projectile so as to accurately predict apogee. The module outputs a signal indicating apogee detection or prediction which they projectile uses to initiate fuze arming, targeting control, airbody transformation, maneuvering, flow effector deployment or activation, payload exposure or deployment, and/or other mission activity. Because the system and method of the invention does not rely on external environmental data to detect apogee, it need not use a pressure sensor and can be completely sealed in and closed without requiring access to air from outside the projectile for barometric readings.

    Self-calibrating fluxgate magnetometer and methods of using

    公开(公告)号:US10895611B1

    公开(公告)日:2021-01-19

    申请号:US16357916

    申请日:2019-03-19

    IPC分类号: G01R33/00 G01R33/04

    摘要: The present invention relates to a sensor suite comprising at least one sensor. More particularly, the present invention relates to a sensor suite for measuring absolute and/or relative position, location and orientation of an object on or in which the sensor suite is employed. The present invention further relates to improved, novel sensor types for use in the sensor suite. More particularly, the present invention relates to an improved, novel magnetometer that is self-calibrating and scalable. Still more particularly, the present invention relates to such a magnetometer that is miniaturized. Further embodiments of the present invention relate to systems and methods for providing location and guidance, and more particularly for providing location and guidance in environments where global position systems (GPS) are unavailable or unreliable (GPS denied and/or degraded environments).

    Dynamic magnetic vector fluxgate magnetometer and methods of using

    公开(公告)号:US12099100B1

    公开(公告)日:2024-09-24

    申请号:US18124145

    申请日:2023-03-21

    IPC分类号: G01R33/00 G01R33/04

    CPC分类号: G01R33/0035 G01R33/04

    摘要: The present invention relates to a sensor suite comprising at least one sensor. More particularly, the present invention relates to a sensor suite for measuring absolute and/or relative position, location and orientation of an object on or in which the sensor suite is employed. The present invention further relates to improved, novel sensor types for use in the sensor suite. More particularly, the present invention relates to an improved, novel magnetometer that is self-calibrating and scalable. Still more particularly, the present invention relates to such a magnetometer that is miniaturized. Further embodiments of the present invention relate to systems and methods for providing location and guidance, and more particularly for providing location and guidance in environments where global position systems (GPS) are unavailable or unreliable (GPS denied and/or degraded environments).