The static modeling of a bi-axial torsional micro-mirror with sidewall electrodes is investigated. The mirror and sidewall electrodes experience different voltages. As a result of the potential difference, the mirror rotates about x and y axes with the torques generated from electrostatic forces by the sidewall and bottom electrodes. The rotations about two axes are made possible using a gimbal...

In this paper, we analyze dynamics of a DGVSCMG(Double-Gimbal VariableSpeed Control Moment Gyro) and develop an easy-to-use LPV (Linear ParameterVarying) model, in which we deal with 3-axis attitude control of a spacecraft equipped with a DGVSCMG. Although it is hard to consider overall stability and control performance of attitude control at the same time with conventional methods, this paper ...

Unmanned aerial vehicles (UAVs) have been used for increasing research applications in atmospheric measurements. However, most current solutions these are based on a single UAV with limited payload capacity. In order to address the limitations of UAV-based approach, this paper proposes new concept measurements using tandem flying multicopters as distributed sensor platform. Key challenges propo...

Eye-hand tracking of moving visual objects in three-dimensional (3D) space is common in the behavioral repertoire of primates. However, behavioral and/or neurophysiological studies of this function are lacking mainly because devices do not exist that allow its investigation. We describe a device by which a spot of light can be presented in the immediate extrapersonal space of a subject and can ...

In this article, a novel hybrid control scheme is proposed for controlling the position of a three-phase brushless direct current (BLDC) motor. The hybrid controller consists of discrete time sliding mode control (SMC) with model free adaptive control (MFAC) to make a new data-driven control (DDC) strategy that is able to reduce the simulation time and complexity of a nonlinear system. The prop...