Wireless Motion Trackers
Wireless Motion Trackers - Related Videos
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Cited by 13 •
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We recently proposed a method that allows dichoptic visual stimulus presentation and binocular eye tracking simultaneously1. The key is the combination of an infrared eye tracker and the corresponding infrared-transparent mirrors. This manuscript provides an in depth protocol for initial setup and everyday operation.
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Kinematics and Projectile Motion
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2023
Source: Ketron Mitchell-Wynne, PhD, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA This experiment demonstrates the kinematics of motion in 1 and 2 dimensions. This lab will begin by studying motion in 1 dimension, under constant acceleration, by launching a projectile directly upward and measuring the maximum height reached. This lab will verify that the maximum height reached is consistent with the kinematic...
06:03
Motion-induced Blindness
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University One thing becomes very salient after basic exposure to the science of visual perception and sensation: what people see is a creation of the brain. As a result people may fail to see things, see things that are not there, or see things in a distorted way. To distinguish between physical reality and what people perceive, scientists use the term awareness to refer to what people perceive. To study awareness, vision scientists often...
FAQs
An accelerometer detects linear acceleration, indicating how motion changes along a path, while a gyroscope detects angular velocity, describing rotational motion. Using both sensor types gives the system complementary information about translation and rotation rather than relying on one measurement alone. This combination supports analysis of trajectories, orientation, speed, and changing motion in physics experiments.
Onboard processing converts raw acceleration and angular-velocity measurements into useful motion estimates, including position, orientation, speed, or changes in motion over time. Combining measurements in the device allows researchers to work with interpreted motion data instead of examining each sensor signal independently. The resulting estimates help connect observed movement with physical quantities relevant to experimental analysis.
Wireless transmission removes the need for a wired connection between the tracker and the receiving system. This allows an object or subject to move more freely during measurement, which is especially valuable when studying natural movement or motion in difficult-to-access settings. The arrangement supports experiments where cables could interfere with trajectories, rotation, vibration, or human movement.
A typical workflow uses the tracker’s accelerometer and gyroscope to sense movement, onboard processing to estimate motion variables, and wireless transmission to make the resulting data available for analysis. Researchers can then examine quantities such as trajectory, orientation, speed, or changes in motion over time. This sequence links physical movement to interpretable experimental results.
The approach is useful for studying trajectories, rotational dynamics, vibration, and human movement. Trajectory measurements describe how an object moves through space, while rotational measurements address changes in orientation and angular motion. Vibration studies examine changing motion, and human-movement experiments benefit from the freedom to move without a wired connection. Together, these uses connect sensor data with several areas of mechanics.
Applications extend to biomechanics, robotics, sports science, and interactive technology. In biomechanics and sports science, the systems support analysis of human movement; in robotics, they help characterize motion and orientation; and in interactive technology, movement data can support responsive systems. Their ability to operate during free movement also makes them useful in natural or difficult-to-access settings.