The phrase "actuation direction" is correct and usable in written English.
It can be used in contexts related to mechanics, engineering, or robotics, where it refers to the specific direction in which a mechanism or actuator operates.
Example: "The actuation direction of the robotic arm must be calibrated to ensure precise movement."
Alternatives: "activation direction" or "movement direction".
We also considered the same initial deflection of the haltere (50 µm) along the sensing direction in order to compare the force required with that in the actuation direction (direct comparison).
The halteres along with their connecting joint with the fly's body constitute a mechanism that is used for muscle-actuated oscillations of the halteres along the actuation direction.
For better controllability in actuation applications, it is desirable to create functionally graded shape memory alloys in the actuation direction.
This mechanism is associated with large actuation and small biasing forces in each actuation direction resulting in a large stroke.
In this joint, a pair of bevel gears is used to convert the actuation direction of the tip to a configuration which can be driven by the actuator installed in the reusable driving unit.
Thus, the motion along the actuation direction is a rigid body motion.
Unlike existing parallel mechanisms using dual servo systems, the proposed platform is unique due to the fact that the actuation directions of the coarse and fine actuators are vertical with respect to each other, which enables them to effectively increase the mobility and resolution of the platform.
An experimental setup with the actuation along one direction in the horizontal plane was configured to elucidate the characteristics of the positioning table.
Thus, with foundation stiffnesses, KA = 1.7 µN/µm and KB = 0.0034 µN/µm, we obtain the torsional stiffness of 0.069 µNm/radian and bending stiffness of 0.228 N/m of the haltere in the actuation and sensing directions respectively.
Based on these measurements, we estimate the natural frequency along both actuation and sensing directions, propose a finite element model of the haltere's joint mechanism, and discuss the significance of the haltere's asymmetric cross-section.
In the proposed method, the control laws are including the modal actuation scheme for uncontrolled direction.
