Results 31 to 40 of about 153,389 (320)

Flash CCD laser displacement sensor

open access: yesElectronics Letters, 2006
An optical displacement sensor, utilising the triangular method, linear CCD and a real-time processing circuit with no microprocessors involved, is presented. Theoretical analysis and experiments were carried out. Results show that the sensor has a measurement range of 0.2 rad, high linearity of 0.1% FSO, and high sampling rate of 50 kHz.
Q.-P. Li, F. Ding, P. Fang
openaire   +1 more source

Characterization of a Low-Cost Optical Flow Sensor When Using an External Laser as a Direct Illumination Source

open access: yesSensors, 2011
In this paper, a low cost optical flow sensor is combined with an external laser device to measure surface displacements and mechanical oscillations. The measurement system is based on applying coherent light to a diffuser surface and using an optical ...
Jordi Palacín   +4 more
doaj   +1 more source

DETERMINING THE TORQUE LOADING OF THE CYCLOID GEAR [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2018
Based on experimental investigations, a very close correlation was established between the torque loading of the cycloid gear and the laser sensor’s indications measuring the displacement of the gear body. The method is given and the relationship between
Zbigniew PAWELSKI, Zbigniew ZDZIENNICKI
doaj   +1 more source

Algorithms for Mobile Robot Localization and Mapping, Incorporating Detailed Noise Modeling and Multi-scale Feature Extraction [PDF]

open access: yes, 2006
Mobile robot localization and mapping in unknown environments is a fundamental requirement for effective autonomous navigation. Three different approaches to localization and mapping are presented.
Pfister, Samuel Thomas
core   +1 more source

Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle

open access: yesSensors, 2023
In recent years, many studies have been conducted on the vision-based displacement measurement system using an unmanned aerial vehicle, which has been used in actual structure measurements.
Hongjin Kim, Guyeon Kim
doaj   +1 more source

PCF Based Sensor with High Sensitivity, High Birefringence and Low Confinement Losses for Liquid Analyte Sensing Applications [PDF]

open access: yes, 2015
In this paper, we report a design of high sensitivity Photonic Crystal Fiber (PCF) sensor with high birefringence and low confinement losses for liquid analyte sensing applications.
Huseyin Ademgil   +3 more
core   +1 more source

Detection principle and verification of non-contact displacement meter with pico-meter resolution

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Displacement sensors based on laser or optical fiber technology are recognized for their capacity for non-contact distance measurement based on reflection from an object, but with limited measurement distance and resolution.
Hideaki TAMIYA   +3 more
doaj   +1 more source

Piston secondary motion measurement by laser displacement sensors [PDF]

open access: yesVibroengineering Procedia, 2018
Measurement of the piston group behavior is still a challenge. Achieved accuracy and complexity go hand in hand with the financial requirements. This paper presents an unconventional measurement of the piston secondary motion using laser displacement sensors.
Dlugoš, Jozef, Novotný, Pavel
openaire   +2 more sources

Reduction of Crosstalk Errors in a Surface Encoder Having a Long Z-Directional Measuring Range

open access: yesSensors, 2022
A modified two-axis surface encoder is proposed to separately measure both the in-plane displacement and the Z-directional out-of-plane displacement with minor crosstalk errors.
Yifan Hong   +5 more
doaj   +1 more source

A novel pose calibration method for laser displacement sensor in the five-axis on-machine measurement system

open access: yesJournal of Physics: Conference Series
The five-axis on-machine measurement system, equipped with a laser displacement sensor, offers an effective approach for conducting on-site inspections of freeform surface parts.
Dong-fang Wang   +3 more
semanticscholar   +1 more source

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