Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Rolling Resistance01:21

Rolling Resistance

771
When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down due to...
771
Leveling Equipment01:18

Leveling Equipment

628
As leveling involves measuring vertical distances relative to a horizontal line of sight, it requires a graduated rod, called a level rod, for vertical measurements and an instrument called a level for a horizontal sight line. A level includes a high-powered telescope with a mechanism for leveling to ensure the line of sight is horizontal when the bubble in the spirit level is centered. Leveling rods, made of wood, metal, or fiberglass, are graduated in feet or meters and commonly used in two-...
628
Rolling Resistance: Problem Solving01:17

Rolling Resistance: Problem Solving

955
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
955
Differential Leveling01:12

Differential Leveling

936
Differential leveling is a precise method in surveying used to determine the elevation difference between two points. Its primary goal is to establish accurate vertical measurements to create level surfaces or grade lines critical for designing and constructing infrastructures such as roads, bridges, and buildings.The procedure for differential leveling begins with setting up and leveling the instrument at a point where the benchmark can be seen. The level rod is held on the benchmark (BM), and...
936

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Digital App for Speech and Health Monitoring Study (DASH): protocol for a prospective longitudinal case-control observational study for developing speech datasets in neurodegenerative disorders and dementia.

BMJ open·2025
Same author

Support for the Time-Varying Drift Rate Model of Perceptual Discrimination in Dynamic and Static Noise Using Bayesian Model-Fitting Methodology.

Entropy (Basel, Switzerland)·2024
Same author

A novel method for identifying coded tags recorded on aquatic acoustic monitoring systems.

Environmental monitoring and assessment·2022
Same author

The effects of indoor temperature and humidity on local transmission of COVID-19 and how it relates to global trends.

PloS one·2022
Same author

An Integrated Assessment of Emissions, Air Quality, and Public Health Impacts of China's Transition to Electric Vehicles.

Environmental science & technology·2022
Same author

Arabidopsis RING-type E3 ubiquitin ligase XBAT35.2 promotes proteasome-dependent degradation of ACD11 to attenuate abiotic stress tolerance.

The Plant journal : for cell and molecular biology·2020
Same journal

EFFECT OF FILTERING KINEMATICS ON FINITE ELEMENT SIMULATIONS OF HEAD IMPACTS IN HIGH SCHOOL FEMALE LACROSSE.

Biomedical sciences instrumentation·2026
Same journal

INHIBITING THE INHIBITOR: WOULD TARGETING PAI-1 RESULT IN A LOW-DOSE, WELL-TOLERATED TREATMENT OF EMPYEMA?

Biomedical sciences instrumentation·2026
Same journal

QUANTIFYING HEAD IMPACT EXPOSURE, MECHANISMS AND KINEMATICS USING INSTRUMENTED MOUTHGUARDS IN MALE HIGH SCHOOL LACROSSE.

Biomedical sciences instrumentation·2026
Same journal

UTILITY OF CHEST ULTRASONOGRAPHY IN QUANTIFYING CLOT AND PLEURAL EFFUSION VOLUME IN PRECLINICAL MODELS OF PLEURAL DISEASE.

Biomedical sciences instrumentation·2026
Same journal

THE ROLE OF PERIPHERAL VISION IN ENHANCING BALANCE AND POSTURAL STABILITY: INSIGHTS FROM CENTRAL VISION OBSTRUCTION.

Biomedical sciences instrumentation·2025
Same journal

IMPACT OF NON-SKID SOCKS AND ANTERIOR WEIGHT ON POSTURAL RESPONSE AND STABILITY DURING PERTURBATION.

Biomedical sciences instrumentation·2025
See all related articles

Related Experiment Video

Updated: Apr 20, 2026

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion
08:55

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion

Published on: February 5, 2020

8.0K

All-terrain self-leveling wheelchair.

Andrew Schofield1, Steven Barrett

  • 1University of Wyoming, Laramie.

Biomedical Sciences Instrumentation
|November 19, 2014
PubMed
Summary
This summary is machine-generated.

This self-leveling wheelchair enhances mobility for users by maintaining seat stability on inclines. It uses an accelerometer and linear actuators to prevent tipping, allowing access to challenging terrains.

More Related Videos

Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton
09:46

Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton

Published on: June 16, 2016

21.6K
A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

7.0K

Related Experiment Videos

Last Updated: Apr 20, 2026

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion
08:55

Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion

Published on: February 5, 2020

8.0K
Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton
09:46

Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton

Published on: June 16, 2016

21.6K
A Vibrotactile Feedback Device for Seated Balance Assessment and Training
09:13

A Vibrotactile Feedback Device for Seated Balance Assessment and Training

Published on: January 20, 2019

7.0K

Area of Science:

  • Biomedical Engineering
  • Rehabilitation Engineering

Background:

  • Limited mobility affects millions, with many relying on wheelchairs.
  • Traditional wheelchairs face challenges in outdoor and uneven terrains.
  • Inclines pose significant stability risks, including wheelchair tipping.

Purpose of the Study:

  • To develop a self-leveling wheelchair to enhance user stability and mobility.
  • To overcome limitations of traditional wheelchairs in varied environments.
  • To improve user confidence and access to challenging terrains.

Main Methods:

  • Integration of an accelerometer to measure the wheelchair's angle of inclination.
  • Utilization of linear actuators to adjust seat level.
  • Implementation of a user interface for angle display or automatic leveling.

Main Results:

  • The self-leveling wheelchair maintains seat stability on inclines up to 45 degrees.
  • The system adjusts the center of gravity for improved stability on hills.
  • A 6-inch manual lift capability is incorporated.

Conclusions:

  • The self-leveling wheelchair significantly enhances stability and user confidence.
  • This innovation expands mobility options for wheelchair users in diverse environments.
  • The patent-pending design offers a novel solution for mobility challenges.