The single-axis multi-function gimbal needs to coordinate hardware structure and software algorithm to achieve precise angle adjustment. All links from mechanical transmission to electronic control need to be precisely designed to ensure that it can accurately stay at the target angle according to the needs of the user during the rotation process to avoid deviation or jitter. The realization of this adjustment capability runs through every step of the single-axis multi-function gimbal from core component selection to overall system integration, and is the result of the joint action of multiple technologies.
The selection of core power components is the basis for achieving precise adjustment. Single-axis single-axis multi-function gimbal usually uses servo motors or stepper motors as power sources. These motors have the characteristics of fast response speed and precise speed control, and can accurately output the required torque and speed according to the control signal. The servo motor can monitor the rotation position and speed of the motor in real time through the encoder feedback mechanism. When the system detects that there is a deviation between the actual position and the target position, it will immediately send a signal to adjust the motor operation, thereby achieving fine control of the angle; the stepper motor is driven by a pulse signal, and each pulse corresponds to a fixed rotation angle. By accurately controlling the number and frequency of pulses, the purpose of precise adjustment can also be achieved.
The design of the transmission system directly affects the accuracy and stability of angle adjustment. Common transmission methods include gear transmission, belt transmission or worm gear transmission. Different transmission methods have their own characteristics, but they all need to ensure that the gap during the transmission process is as small as possible. Gear transmission has the advantage of high transmission efficiency, but if the meshing gap between gears is not handled properly, it is easy to produce "backlash" during the adjustment process, affecting the angle accuracy. Therefore, high-quality single-axis multi-function gimbals will use precision-machined gears and reduce the gap through anti-backlash structures; worm gear transmission has self-locking properties and can remain stable after adjusting to the target angle to avoid angle deviation due to external forces. Its large transmission ratio also helps to achieve small angle adjustment.
The sensor system plays the role of "eyes" in precise angle adjustment. It senses the actual angle of the single-axis multi-function gimbal in real time and feeds back to the control system. Common sensors include encoders, gyroscopes, and accelerometers. Encoders can directly convert the rotation angle of the motor into electrical signals to provide accurate position feedback; gyroscopes and accelerometers are used to monitor the posture changes of the single-axis multi-function gimbal. When the single-axis multi-function gimbal is subjected to external vibration or tilt, the sensor will detect the change in time and transmit the signal to the control system. The system adjusts the motor output accordingly to offset external interference and maintain the stability of the angle. The higher the accuracy and response speed of these sensors, the more accurate the single-axis multi-function gimbal's control of the angle.
The control system is the "brain" for achieving precise angle adjustment. It receives feedback signals from sensors and compares them with the target angle set by the user. It calculates the direction and amplitude of the motor to be adjusted through a specific algorithm, and then issues control instructions to the motor. The core of the control system lies in the optimization of the algorithm, such as the PID (proportional-integral-differential) control algorithm. By reasonably adjusting the proportional coefficient, integral coefficient and differential coefficient, it can quickly respond to the angle deviation, reduce the overshoot and adjustment time during the adjustment process, and make the single-axis multi-function gimbal reach the target angle smoothly. Advanced control systems can also automatically adjust the control parameters according to different load weights and usage scenarios to further improve the adaptability and accuracy of angle adjustment.
The rigidity and stability of the mechanical structure have an important impact on the accuracy of angle adjustment. If the mechanical parts such as the bracket and connector of the single-axis multi-function gimbal are loose or deformed, additional displacement will be generated during the adjustment process, resulting in the actual angle not matching the target angle. Therefore, high-quality single-axis single-axis multi-function gimbals are usually made of high-strength materials such as aluminum alloy or carbon fiber to ensure that the structure will not be significantly deformed when subjected to force; each connection part is fixed with precision screws or buckles, and anti-loosening measures are taken to prevent loosening after long-term use. In addition, the center of gravity design of the single-axis multi-function gimbal must also be reasonable. Excessive load or eccentric installation may cause the single-axis multi-function gimbal to shake due to unbalanced torque during adjustment, affecting the angle accuracy.
The user's choice of adjustment method in actual operation will also affect the accuracy. Most single-axis single-axis multi-function gimbals are equipped with two modes: manual adjustment and electric adjustment. During manual adjustment, the angle can be finely adjusted through the subtle operation of the knob or lever, combined with the scale mark or display feedback; for electric adjustment, the target angle is input through the controller or supporting software, and the single-axis multi-function gimbal automatically completes the adjustment process. In the electric adjustment mode, some single-axis multi-function gimbals also support the "fine adjustment" function. Users can make fine corrections to the angle at the level of 0.1 degrees by short pressing the button or dragging the slider slightly. At the same time, the setting of the adjustment speed is also critical. Too fast an adjustment speed may cause overshoot due to inertia, while a slower speed allows the system to have more time for feedback and adjustment, thereby achieving more accurate positioning.
The precise angle adjustment of the single-axis multi-function gimbal is the result of the combined effect of motor drive, transmission design, sensor feedback, control algorithm and mechanical structure. The optimization of each link can provide guarantee for angle accuracy. In actual applications, users also need to reasonably set parameters according to factors such as load weight and use environment, and do a good job of equipment maintenance to ensure that all components are always in good working condition. Only in this way can the single-axis multi-function gimbal achieve stable and accurate angle adjustment in various scenarios to meet different shooting or operation requirements.
