Artificial Muscle Sweeper for Quiet Rotational Camera Motion
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Solution Overview
Problem
Conventional motors used in harsh environments are often complex, expensive, bulky, and noisy, making them unsuitable for applications requiring simplicity, cost-effectiveness, and quiet operation.
Innovation Solution
The use of linear artificial muscle actuators, composed of twisted polymer fibers or carbon nanotube yarns, which provide torsional and tensile actuation for rotating or tilting mechanisms, offering a simpler, quieter, and more cost-effective alternative by securing ends to a base and foundations or rods, and utilizing conducting materials for electrical actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional motors are used for device actuation, then reliable rotational movement is achieved, but device complexity, cost, size, and noise increase
Solution Approach 1:
The patent replaces conventional motors with artificial muscle actuators that use electroactive polymer materials. These artificial muscles convert electrical energy directly into mechanical contraction and twisting motions, eliminating the need for complex motor assemblies, gears, and mechanical linkages. The substitution maintains reliable actuation while significantly reducing device complexity, size, and noise.
Solution Approach 2:
The invention changes the actuation mechanism from electromagnetic motor rotation to electrochemical muscle contraction. By applying electrical voltage to the artificial muscle material, it undergoes parameter changes in length and twist, directly producing the desired mechanical motion without intermediate mechanical components.
2Reliability
If conventional motors are used for device actuation, then reliable rotational movement is achieved, but cost and manufacturing complexity increase
Solution Approach 1:
The patent replaces expensive motor assemblies with simpler artificial muscle actuators made from electroactive polymer materials. These materials can be manufactured through processes like electrospinning or 3D printing, reducing manufacturing complexity and cost while maintaining reliable actuation performance.
Solution Approach 2:
The invention uses composite artificial muscle materials combining conductive polymers with elastic polymers. These composite materials provide both the electrical conductivity needed for actuation and the mechanical elasticity for motion, enabling simpler manufacturing compared to conventional motor components.
3Reliability
If conventional motors are used for device actuation, then reliable rotational movement is achieved, but device size increases
Solution Approach 1:
The patent replaces bulky motor assemblies with compact artificial muscle actuators. The artificial muscles generate motion through material deformation rather than mechanical rotation, enabling significantly smaller actuator sizes while maintaining reliable actuation force and motion control.
Solution Approach 2:
The invention segments the actuation function into multiple small artificial muscle units rather than using a single large motor. This segmentation allows distributed actuation throughout the device structure, reducing overall device size while maintaining reliable movement through coordinated activation of multiple smaller units.
4Reliability
If conventional motors are used for device actuation, then reliable rotational movement is achieved, but noise generation increases
Solution Approach 1:
The patent replaces noisy mechanical motor systems with silent artificial muscle actuators. The artificial muscles produce motion through electrochemical contraction without mechanical friction, gear engagement, or electromagnetic hum, eliminating the noise sources inherent in conventional motors while maintaining reliable actuation.
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
This solution provides a robust, low-cost, and quiet means to control device directionality or sweeping motions, such as in camera or sensor systems, outperforming conventional motors in terms of simplicity and operational characteristics.
Implementation Method 1
Devices comprising twisted and/or coiled actuators have the advantage of low cost, high production volume, and design simplicity. Artificial actuator devices may provide for a simpler, smaller, cheaper, and quieter alternative to conventional motors.
Implementation Method 2
Artificial actuator devices based on elastic polymeric fibers have a wide range of applications.
Data Source
AI summary
Apparatuses and methods for manufacturing an apparatus for supplying a sweeping motion for a device such as a camera are disclosed. The apparatus includes a stationary rod and a rotational rod arranged parallel to the stationary rod at a fixed distance from the stationary rod. The apparatus includes a device disposed on the rotational rod and a plurality of linear artificial muscle actuators arranged between the stationary and rotational rods and perpendicular to central axes of the stationary and rotational rods. Actuation of a top-portion of the plurality of linear artificial muscle actuators rotates the rotational rod in a first direction, and an actuation of a bottom-portion of the plurality of linear artificial muscle actuators rotates the rotational rod in a second direction opposite to the first direction.