Gimbal Linear Mount with Gear Coupling for Vibration Isolation
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Solution Overview
Problem
Aircraft vibrations cause unsteady and blurred images in gimbal-mounted cameras due to inadequate stabilization, leading to undesirable angular changes in the camera's line of sight, which affects image quality.
Innovation Solution
A gimbal system with a linear mount assembly featuring first and second bar assemblies rotationally coupled by gears, along with spring elements and linkage members, to minimize vibration-induced rotation and provide stable image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If active compensation with servomechanisms is used to stabilize the camera, then image stabilization is improved, but power consumption and device complexity increase
Solution Approach 1:
The patent replaces the active servomechanism system (gyroscopes, motors, sensors) with a passive mechanical filter system consisting of a linear mount with spring elements and a coupling assembly. This mechanical filter passively attenuates vibration frequencies below its natural frequency, eliminating the need for complex active compensation instrumentation and reducing power consumption while maintaining image stabilization.
2Object-affected harmful factors
If mechanical filtering with spring elements is used, then vibration attenuation is improved, but systematic rotation is introduced
Solution Approach 1:
The patent employs four spring elements arranged asymmetrically in a non-square pattern around the vertical axis, with different orientations and spacing. This asymmetric configuration breaks the symmetry that causes systematic rotation in conventional square arrangements, allowing the linear mount to attenuate vibrations while minimizing unwanted rotational motion of the camera.
3Ease of operation
If conventional coupling assembly is used, then linear motion is permitted, but rotational stability deteriorates
Solution Approach 1:
The patent divides the coupling function into separate components: the linear mount with spring elements handles linear motion and vibration attenuation, while the coupling assembly with four arms and pivot joints handles rotational stability. This segmentation allows each component to be optimized for its specific function without compromising the other, enabling linear motion while maintaining rotational stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces vibration-induced rotation, enhances image quality, and allows for a more compact mount design with lower building height, effectively stabilizing the gimbal apparatus during aircraft motion.
Implementation Method 1
a plurality of spring elements disposed between the first and second frames and configured to resiliently position the gimbal apparatus along the axis
Implementation Method 2
first and second bar assemblies that are rotationally coupled to each other by a pair of gears
Implementation Method 3
first and second bar assemblies that are rotationally coupled to each other by a pair of gears
Data Source
AI summary
Gimbal system, including method and apparatus, for mounting a gimbal apparatus to a support platform with a mount assembly. The mount assembly may include first and second bar assemblies that are rotationally coupled to each other by a pair of gears.