Servo System
Servo System - Related Videos
06:45
Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
0 Views •
2022
In this paper, an adaptive filter based on a normalized least mean square (NLMS) algorithm and a rotational speed estimation method are introduced to detect the electrical and hydraulic faults of the electro-hydrostatic actuator (EHA). The efficacy and feasibility of the aforementioned methods are verified through simulations and experiments.
06:20
Imaging Leukocyte Adhesion to the Vascular Endothelium at High Intraluminal Pressure
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Cited by 21 •
2011
This is a method to visualise leukocyte adhesion to the endothelium in harvested pressurised vessels. The technique enables studying vascular adhesion under shear flow with differing intraluminal pressures up to 200 mmHg thus mimic-ing the pathophysiological conditions of high blood pressure.
10:41
Method to Measure Tone of Axial and Proximal Muscle
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Cited by 5 •
2011
We have developed a device (Twister) to study the regulation of tonic muscle activity during active postural maintenance. Twister measures torsional resistance and muscular responses in standing subjects during twisting of the body axis. The device can be flexibly configured to study various aspects of tonic control across the neck, trunk, and/or hips.
07:46
Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
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Cited by 2 •
2024
This article presents the design and implementation of an automatic surgery module based on augmented reality (AR)- based 3D reconstruction. The system enables remote surgery by allowing surgeons to inspect reconstructed features and replicate surgical hand movements as if they were performing the surgery in close proximity.
07:41
High-Throughput Bioprinting Method for Modeling Vascular Permeability in Standard Six-well Plates with Size and Pattern Flexibility
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2024
We present a protocol for high-throughput production of vascular channels with flexible sizes and desired patterns on a standard six-well plate using 3D bioprinting technology, referred to as vessels-on-a-plate (VOP). This platform has the potential to advance the development of therapeutics for the disorders associated with compromised endothelium.
FAQs
Feedback is the mechanism that lets a servo system correct the difference between a commanded output and the machine’s actual response. An encoder or resolver supplies the measured position, speed, or torque, and the controller uses that information to adjust the actuator. This continuous comparison helps maintain precision when commands change or disturbances affect motion.
The controller performs the decision-making step: it calculates the error from the command and sensor feedback, then directs an actuator to reduce that error. Motors, drives, controllers, and feedback devices form the main coordinated elements. Their integration allows the machine to translate control decisions into regulated motion rather than treating each component independently.
Rapid response allows the system to follow changing commands and react to disturbances before they produce large deviations from the desired output. This behavior is important where position, speed, or torque must remain accurate during motion. In engineering systems, improved response contributes to dynamic performance, while feedback-based correction supports accuracy and repeatability.
Operation begins with a commanded position, speed, or torque. A feedback device measures the corresponding machine output, and the controller compares the measurement with the command to determine error. It then adjusts the actuator, after which the output is measured again. Repeating this sequence reduces error and keeps motion aligned with the intended result.
They are applied wherever automated motion requires accurate regulation, including robotics, CNC machinery, aerospace systems, and camera stabilization. These applications use the same feedback-based approach for different motion objectives, such as positioning, speed control, or torque regulation. Their relevance in engineering comes from combining precision, repeatability, rapid response, and efficient machine operation.
Evaluation typically focuses on how closely the machine follows its command and how consistently it responds over repeated operation. The system can provide improved accuracy and repeatability while also supporting efficiency and dynamic performance. These outcomes help engineers judge whether regulated position, speed, or torque meets the requirements of an automated machine or motion platform.