Related Experiment Video
Updated: Jan 17, 2026

A Simple and Low-cost Assay for Measuring Ambulation in Mouse Models of Muscular Dystrophy
Published on: December 29, 2017
Mathematical Framework for the Representation of the Travel of an Accelerometer-Based Texture Testing Device
Harald Paulsen1, Christian Peham2, Johannes Peter Schramel2
1Research Unit for Biomechanics and Rehabilitation Engineering, TU Wien, 1060 Vienna, Austria.
None:
Recently, an accelerometer-based device (Vienna Surface Tester (VST)) has been developed for testing the surface characteristics of floors, beddings and turf grounds. The accelerometers are placed in a sphere, which will be dropped in free fall on a test surface. By observing changes in acceleration during impact, researchers can deduce various material characteristics. A down-sized version of this device (Surface Tester of Food Resilience (STFR)) has been proposed for texture testing of foods. Whereas the movement of the VST can be described by the laws of free fall, the STFR follows a constrained circular path due to its attachment to a rod and swivel. We refined the mathematical representation of the different phases of the STFR spherical probe's trajectory (fall, impact and rebound), and we modified the mathematical models for the STFR probe to extend the measurement range.
Related Concept Videos
Relative Motion Analysis - Acceleration
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Relative Motion Analysis using Rotating Axes-Problem Solving
Here, in order to determine the magnitude of velocity and acceleration for point...
Measuring Acceleration Due to Gravity
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
Curvilinear Motion: Rectangular Components
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
Trapezoidal Rule

