Results 1 to 10 of about 30,424 (159)

Factors Affecting Extension Ladder Angular Positioning [PDF]

Human Factors, 2012
Objective: The study objectives were to identify factors affecting extension ladders’ angular positioning and evaluate the effectiveness of two anthropometric positioning methods. Background: A leading cause for extension ladder fall incidents is a slide-out event, usually related to suboptimal ladder inclination.
In-Ju Kim, Hongwei Hsiao, Peter Simeonov   +2 more
exaly   +5 more sources

A Method to Calibrate Angular Positioning Errors Using a Laser Tracker and a Plane Mirror [PDF]

Sensors
We describe a method to calibrate angular positioning errors of a rotation stage using a laser tracker (LT), a plane mirror mounted on the stage, and stationary registration nests placed around the stage.
Bala Muralikrishnan, Meghan Shilling, Vincent Lee, Olga Ridzel, Glenn Holland, John Villarrubia   +5 more
doaj   +4 more sources

Research to improve extension ladder angular positioning [PDF]

Applied Ergonomics, 2013
A leading cause for extension ladder fall incidents is a slide-out event usually related to suboptimal ladder inclination. An improved ladder positioning method or procedure could reduce the risk of ladder stability failure and the related fall injury.
Simeonov P, Hsiao H, Powers J, Kim IJ, Kau TY, Weaver D.   +5 more
exaly   +5 more sources

Laser R-Test for Angular Positioning Calibration and Compensation of the Five-Axis Machine Tools

Applied Sciences, 2021
The angular positioning error of the rotary stage causes low quality in milling various angles of a workpiece. This study proposes a solution that could improve these issues by using our Laser R-test for angular positioning calibration and compensation ...
Cao-Sang Tran, Tung-Hsien Hsieh, Wen-Yuh Jywe   +2 more
doaj   +3 more sources

Calibration Method for Angular Positioning Deviation of a High-Precision Rotary Table Based on the Laser Tracer Multi-Station Measurement System

Applied Sciences, 2019
This paper proposes a calibration method for angular positioning deviation of a high-precision rotary table based on the laser tracer multi-station measurement system.
Hongfang Chen, Bo Jiang, Hu Lin, Shuang Zhang, Zhaoyao Shi, Huixu Song, Yanqiang Sun   +6 more
doaj   +3 more sources

Modeling and Measurement of Tool Wear During Angular Positioning of a Round Cutting Insert of a Toroidal Milling Tool for Multi-Axis Milling

Applied Sciences
The aim of this study was to develop a concept for an angular positioning method for a round cutting insert in a torus cutter body dedicated to the multi-axis milling process under high-speed machining cutting conditions. The method concept is based on a
Michał Gdula, Lucia Knapčíková, Jozef Husár, Radoslav Vandžura   +3 more
doaj   +3 more sources

Study of the Angular Positioning of a Rotating Object Based on Some Computational Intelligence Methods

Mathematics, 2022
The paper presents the result of a study that can be included in the broader field of research aimed at increasing the performance of automatic motion control systems. The main contribution of the article is the comparative study of three control methods
Constantin Volosencu
doaj   +1 more source

Research on Fast and Precise Positioning Strategy of an Ultrasonic Motor Based on the Ultrasonic Friction Reduction Theory

Micromachines, 2022
To address the problems of the large positioning error and long positioning time of the traditional positioning strategy, namely, the two-phase simultaneous power-off method (TPSPM), a new positioning strategy, called the first single-phase then two ...
Weijun Zeng, Song Pan, Lei Chen, Weihao Ren, Yongjie Huan, Yongjin Liang   +5 more
doaj   +1 more source

Minimum uncertainty states of angular momentum and angular position [PDF]

New Journal of Physics, 2005
Peer ...
Pegg, DT, Barnett, SM, Zambrini, R, Franke-Arnold, S, Padgett, M   +4 more
openaire   +5 more sources

Miniature magneto-optic angular position sensor

Optics Letters, 2022
This Letter describes a miniature Fabry–Perot, contactless, magneto-optic sensor for angular position measurement. The sensor utilizes a magneto-optic fluid comprising barium hexaferrite nanoplatelets that become birefringent in the presence of an external magnetic field and a compact fiber-optic sensor system for tracking the liquid’s optical axis ...
Budinski, Vedran, Pevec, Simon, Campelj, Stanislav, Mertelj, Alenka, Lisjak, Darja, Donlagic, Denis   +5 more
openaire   +4 more sources