There is provided a control device to protect an actuator through a simple configuration in a case where a power transmission mechanism receives external force, the control device including a comparison section and a driving force control section. The comparison section compares a first rotation position and a second rotation position with each other. The first rotation position is a rotation position of an input shaft of a power transmission mechanism, and the second rotation position is a rotation position of an output shaft of the power transmission mechanism. The driving force control section controls driving force of an actuator that drives the input shaft on the basis of a difference between the first rotation position and the second rotation position. This configuration allows the actuator to be protected through a simple configuration in a case where the power transmission mechanism receives external force.

An example system includes: a magnet including one or more coils to conduct current to generate a magnetic field, with the magnetic field to affect output of radiation to a target; and one or more actuators, with an actuator among the one or more actuators being at least part of a physical coupling to the one or more coils, and with the actuator being controllable to move the one or more coils via the physical coupling based on movement of the magnet.

A laser processing system includes redundant actuators positioning a laser spot on a workpiece. The system determines a first trajectory of the first actuator minimizing motion of the first actuator that positions the second actuator such that each point of the reference trajectory is within a range of the second actuator and determines a second trajectory of the second actuator based on a difference between the reference trajectory and the first trajectory. For each axis of control, the system determines an envelope centered on the reference trajectory with a width not greater than the range of the second actuator and determines shortest trajectory traversing the envelope along the time domain to produce the first trajectory. Hence, the first trajectory includes a set of straight segments satisfying the constraints defined by the shape of the envelope. The system includes controllers for control the motion of redundant actuators.

An example system includes: a magnet including one or more coils to conduct current to generate a magnetic field, with the magnetic field to affect output of radiation to a target; and one or more actuators, with an actuator among the one or more actuators being at least part of a physical coupling to the one or more coils, and with the actuator being controllable to move the one or more coils via the physical coupling based on movement of the magnet.

Systems and methods include an actuation system of turbomachinery includes a first actuator configured to control pitch of vanes of the turbomachinery and a first positioner configured to position the first actuator to control the pitch of the vanes. The actuation system also includes a second actuator configured to control the pitch of the vanes of the turbomachinery and a second positioner configured to position the second actuator to control the pitch. The actuation system also includes a controller system communicably coupled to the first and second positioners where the controller system is configured to drive the first positioner in an operation mode based at least in part on a set point. The controller system is also configured to set the second positioner in a diagnostic mode and obtain data from the first positioner and the second positioner where the data indicates operating conditions of the turbomachinery.

A system includes a first actuator and a second actuator arranged such that joint motions of the first actuator and the second actuator position a controlled parameter. A trajectory generator determines a first trajectory of the first actuator minimizing the motion of the first actuator that positions the second actuator such that each point of the reference trajectory is within a range of the second actuator. The motion of the first actuator is controlled according to the first trajectory. The trajectory generator determines a second trajectory of the second actuator based on a difference between the reference trajectory and the positions the second actuator with respect to the reference trajectory governed by the first trajectory. The motion of the second actuator is controlled according to the second trajectory.

Systems and methods include an actuation system of turbomachinery includes a first actuator configured to control pitch of vanes of the turbomachinery and a first positioner configured to position the first actuator to control the pitch of the vanes. The actuation system also includes a second actuator configured to control the pitch of the vanes of the turbomachinery and a second positioner configured to position the second actuator to control the pitch. The actuation system also includes a controller system communicably coupled to the first and second positioners where the controller system is configured to drive the first positioner in an operation mode based at least in part on a set point. The controller system is also configured to set the second positioner in a diagnostic mode and obtain data from the first positioner and the second positioner where the data indicates operating conditions of the turbomachinery.

An example system includes: a magnet including one or more coils to conduct current to generate a magnetic field, with the magnetic field to affect output of radiation to a target; and one or more actuators, with an actuator among the one or more actuators being at least part of a physical coupling to the one or more coils, and with the actuator being controllable to move the one or more coils via the physical coupling based on movement of the magnet.