Linear Displacement Can Be Derived from Otolithic Information and Stored on Spatial Maps Controlling the Saccadic System

2015 ◽  
pp. 76-81 ◽  
Author(s):  
Alain Berthoz ◽  
Isabelle Isra�l ◽  
Elisabeth Vitte ◽  
David Zee
Keyword(s):  
Linear Displacement ◽  
Saccadic System ◽  
Spatial Maps

Evidence against Integration of Spatial Maps in Humans: Similarity across Real and Virtual Environments

2008 ◽  
Author(s):  
Kent D. Bodily ◽  
Bradley R. Sturz ◽  
Jeffrey S. Katz ◽  
Debbie M. Kelly
Keyword(s):  
Virtual Environments ◽  
Spatial Maps

Modelling Light Transmission in a Fiber-Optical Reflection System

2004 ◽  
Vol 9 (1) ◽  
pp. 55-63
Author(s):  
V. Kleiza
Keyword(s):  
Optical Sensors ◽  
Light Transmission ◽  
External Cavity ◽  
Linear Displacement ◽  
Fiber System ◽  
Light Emitting ◽  
Optical Media ◽  
Reflected Light ◽  
Fiber Optical ◽  
Fiber Optical Sensors

Light transmission in the reflection fiber system, located in external optical media, has been investigated for application as sensors. The system was simulated by different models, including external cavity parameters such as the distance between light emitting and receiving fibers and mirror positioning distance. The sensitivity to a linear displacement of the sensors was studied as a function of the distance between the tips of the light emitting fiber and the center of the pair reflected light collecting fibers, by positioning a mirror. Physical fundamentals and operating principles of the advanced fiber optical sensors were revealed.

Improvement of Linear Displacement of an Inchworm

2017 ◽  
Vol 137 (12) ◽  
pp. 1600-1606
Author(s):  
Akihiro Torii ◽  
Yuta Mitsuyoshi ◽  
Suguru Mototani ◽  
Kae Doki
Keyword(s):  
Linear Displacement

scholarly journals Displacement Estimation Based on Optical and Inertial Sensor Fusion

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1390
Author(s):  
Tomasz Ursel ◽  
Michał Olinski
Keyword(s):  
Sensor Fusion ◽  
Inertial Sensor ◽  
External Disturbance ◽  
Linear Displacement ◽  
Measuring System ◽  
Displacement Estimation ◽  
Mems Accelerometer ◽  
Pedestrian Navigation ◽  
Complementary Filter ◽  
Optical Flow Sensor

This article aims to develop a system capable of estimating the displacement of a moving object with the usage of a relatively cheap and easy to apply sensors. There is a growing need for such systems, not only for robots, but also, for instance, pedestrian navigation. In this paper, the theory for this idea, including data postprocessing algorithms for a MEMS accelerometer and an optical flow sensor (OFS), as well as the developed complementary filter applied for sensor fusion, are presented. In addition, a vital part of the accelerometer’s algorithm, the zero velocity states detection, is implemented. It is based on analysis of the acceleration’s signal and further application of acceleration symmetrization, greatly improving the obtained displacement. A test stand with a linear guide and motor enabling imposing a specified linear motion is built. The results of both sensors’ testing suggest that the displacement estimated by each of them is highly correct. Fusion of the sensors’ data gives even better outcomes, especially in cases with external disturbance of OFS. The comparative evaluation of estimated linear displacements, in each case related to encoder data, confirms the algorithms’ operation correctness and proves the chosen sensors’ usefulness in the development of a linear displacement measuring system.

An enlarge polymer optical fiber linear-displacement sensor based on constructive interference

2021 ◽  
Vol 63 ◽  
pp. 102481
Author(s):  
Abdul Ghaffar ◽  
Mujahid Mehdi ◽  
YanYun Hu ◽  
Arnaldo G. Leal-Junior ◽  
Abdul Basit ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Linear Displacement ◽  
Displacement Sensor ◽  
Polymer Optical Fiber ◽  
Constructive Interference

The microscopic anatomy and physiology of the mammalian saccadic system

1996 ◽  
Vol 50 (2-3) ◽  
pp. 133-254 ◽  
Author(s):  
A MOSCHOVAKIS ◽  
C SCUDDER ◽  
S HIGHSTEIN
Keyword(s):  
Microscopic Anatomy ◽  
Anatomy And Physiology ◽  
Saccadic System

An examination of the variables that affect express saccade generation

2004 ◽  
Vol 21 (2) ◽  
pp. 119-127 ◽  
Author(s):  
PETER H. SCHILLER ◽  
JOHANNES HAUSHOFER ◽  
GEOFFERY KENDALL
Keyword(s):  
Rhesus Monkeys ◽  
Target Onset ◽  
Express Saccades ◽  
Express Saccade ◽  
Saccadic System ◽  
Fixation Spot ◽  
Temporal Asynchrony ◽  
Saccade Generation ◽  
Gap Time

The frequency with which express saccades are generated under a variety of conditions in rhesus monkeys was examined. Increasing the gap time between fixation spot termination and target onset increased express saccade frequency but was progressively less effective in doing so as the number of target positions in the sample was increased. Express saccades were rarely produced when two targets were presented simultaneously and the choice of either of which was rewarded; a temporal asynchrony of only 17 ms between the targets reinstated express saccade generation. Express saccades continued to be generated when the vergence or pursuit systems was coactivated with the saccadic system.

Linear-displacement transducers for surface acoustic waves

1985 ◽  
Vol 28 (1) ◽  
pp. 31-33 ◽  
Author(s):  
V. Yu. Snitko ◽  
V. I. Mizarene ◽  
K. M. Ragul'skis
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Linear Displacement ◽  
Displacement Transducers
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