A Magnetohydrodynamic Angular Motion Sensor for Anthropomorphic Test Device Instrumentation

1989 ◽  
Author(s):  
Darren R. Laughlin
Keyword(s):  
Angular Motion ◽  
Motion Sensor ◽  
Test Device

A Thermal Expansion-based Angular Motion Sensor with Detection Limit towards Sub-degree per Second

2021 ◽  
Author(s):  
Huahuang Luo ◽  
Mingzheng Duan ◽  
Hadi Tavakkoli ◽  
Jose Cabot ◽  
Yi-Kuen Lee
Keyword(s):  
Thermal Expansion ◽  
Detection Limit ◽  
Angular Motion ◽  
Motion Sensor

Theory of the Vibrating String as an Angular Motion Sensor

1964 ◽  
Vol 31 (3) ◽  
pp. 523-534 ◽  
Author(s):  
William H. Quick
Keyword(s):  
Differential Equation ◽  
General Expression ◽  
Perturbation Methods ◽  
Equation Of Motion ◽  
Angular Motion ◽  
Motion Sensor ◽  
Central Field ◽  
Vibrating String ◽  
Orbital Precession ◽  
Elliptical Orbits

The important deviations from ideal “gyroscopic” behavior of the plane of a vibrating string, driven by longitudinal end motion, are obtained theoretically. The amplitude of lateral string oscillation is obtained, and perturbation methods are applied to determine conditions under which these oscillations begin and/or continue. Elastic asymmetry is shown to cause the string elements to move out of the nominal plane of vibration into thin elliptical orbits, balanced in a “field” which deviates from linearity because of tension variation. A general expression for orbital precession in a nearly-linear central field is derived and applied to string orbits to obtain the differential equation of motion of the nominal string plane. Finally, motion of the string plane caused by asymmetrical damping is derived.

scholarly journals Study of Systems Error Compensation Methods Based on Molecular-Electronic Transducers of Motion Parameters

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Dmitry L. Zaitsev ◽  
Vadim M. Agafonov ◽  
Iliya A. Evseev
Keyword(s):  
Experimental Study ◽  
Error Compensation ◽  
Angular Motion ◽  
Motion Sensor ◽  
Sensitivity Factor ◽  
Molecular Electronic ◽  
Compensation Methods ◽  
Motion Parameters ◽  
System Errors

The main objective of the paper is to study the system errors of azimuth determination in the dynamic scheme of north finding on the base of the molecular-electronic sensitive angular motion sensor. Introduced theoretical and experimental study of some error compensation methods. Investigated the most significant system inaccuracies of azimuth determination depended on MET sensor g-sensitivity factor and the occurrence of rotation uneven in the system and as a result of tiny angular accelerations which appeared. Methods and algorithms of error reduce are experimentally verified.

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