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Related Concept Videos

Open and closed-loop control systems01:17

Open and closed-loop control systems

849
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
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In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
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Related Experiment Video

Updated: Aug 5, 2025

Bioinspired Soft Robot with Incorporated Microelectrodes
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Published on: February 28, 2020

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Laser defined and driven bio-inspired soft robots toward complex motion control.

Monan Liu1, Qing Wang2, Ai-Wu Li2

  • 1Department of Condensed Matter Physics, College of Physics, Jilin University, Changchun, China.

Physical Chemistry Chemical Physics : PCCP
|March 27, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces an all-light solution for soft robot control using graphene-oxide. Lasers precisely define actuators for complex motions, overcoming limitations of traditional soft robot designs.

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Area of Science:

  • Robotics
  • Materials Science
  • Optics

Background:

  • Soft robots offer advanced motion control but face challenges in actuator assembly and reprogrammable control for complex movements.
  • Existing bio-inspired designs are often limited by mechanical complexities and control system rigidity.

Purpose of the Study:

  • To propose and demonstrate an all-light solution for controlling soft robots.
  • To overcome the limitations of traditional actuator assembly and control in soft robotics.

Main Methods:

  • Utilizing graphene-oxide-based soft robots.
  • Employing a highly localized light field with lasers to define actuators.
  • Implementing precise laser-based definition of actuators to form 'joints'.

Main Results:

  • Demonstrated an all-light actuation strategy for soft robots.
  • Achieved precise actuator definition and joint formation using localized laser fields.
  • Showcased efficient energy storage and release for genuine complex motions in soft robots.

Conclusions:

  • An all-light approach using lasers and graphene-oxide offers a novel solution for soft robot actuation.
  • This method enables precise control and complex motions, overcoming traditional design hindrances.
  • The proposed strategy facilitates efficient energy management for advanced soft robotic applications.