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  • Complementary filter for estimating the angle using the microelectromechnical system of the gyroscope and accelerometer

    Microelectromechnical system MEMS gyroscopes and accelerometers are using to measure the angular velocity of rotation and linear acceleration of an object, respectively. In many applications, the measurement of the angle is required, but gyroscopes have a mixing error that occurs when integrating the angular output velocity and the accelerometers have an error due to the translation force. This article presents a method for designing a complementary filter for estimating an angle using accelerometer and gyroscope and discusses the behavior of complementary filter in Matlab. As a results, the development of complementary filter system used to estimate the angle, can be used to consistenty and accurately improve the determination of the angle.

    Keywords: accelerometer, gyroscope, complementary filter, MEMS microelectromechanical system

  • Analysis of mirror control features for the formation of accurate laser beams

    This article analyzes the problem of precise control of the laser beam. The optical signal may deviate and affect the environment. The analysis of the steering system is based on some important factors for designing the structures of the fast steering mirror and the steering system with laser optics. A 4-quadrant detector is used as a sensor for the input light. The design of the developed control loop and the concept of the mirror model are discussed.

    Keywords: Fuzzy logic controller, PID controller, Optical focus control and fast steering mirror