Results 11 to 20 of about 153,389 (320)

A Large Range Linear Displacement Calibration System Based on Coordinate Measurement and Laser Interference

open access: yesMATEC Web of Conferences, 2018
The linear displacement sensor is widely used in industrial measurement. The linear displacement sensor with measuring range less than 200mm is usually measured on a universal length measuring instrument.
Jiang Zhihua, Zeng Yanhua, Cai Zhenglong
doaj   +3 more sources

Development of a Remote Displacement Measuring Laser System for Bridge Inspection

open access: yesSensors, 2022
Measuring displacement is essential for assessing the safety of bridges. Non-contact sensors such as vision sensors can precisely measure displacement but may be expensive or incapable of micro-scale measurement at a low cost, unlike contact displacement
Kyung-Hwa Kim, Hwee-Kwon Jung
doaj   +2 more sources

Error Analysis of Normal Surface Measurements Based on Multiple Laser Displacement Sensors

open access: yesSensors
The robotic drilling of assembly holes is a crucial process in aerospace manufacturing, in which measuring the normal of the workpiece surface is a key step to guide the robot to the correct pose and guarantee the perpendicularity of the hole axis ...
Fantong Meng   +7 more
doaj   +2 more sources

Development of Low-Cost IoT-Based Displacement Sensor using Laser-Camera Interaction

open access: yese-Journal of Nondestructive Testing
Accurate, continuous displacement monitoring is critical for structural‑health‑monitoring (SHM) applications, yet conventional contact sensors (e.g., LVDTs) and high‑end optical devices (e.g., laser Doppler vibrometers) remain prohibitively expensive or
Fatih Yesevi Okur   +2 more
doaj   +2 more sources

An Improved Measurement Method for the Strength of Radiation of Reflective Beam in an Industrial Optical Sensor Based on Laser Displacement Meter

open access: yesSensors, 2016
An optical sensor such as a laser range finder (LRF) or laser displacement meter (LDM) uses reflected and returned laser beam from a target. The optical sensor has been mainly used to measure the distance between a launch position and the target. However,
Youngchul Bae
doaj   +2 more sources

On-machine form measurement of high precision ceramics parts by using a laser displacement sensor

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
Ceramics materials have excellent mechanical characteristics such as high-stiffness, low-thermal expansion, wear resistance and light weight. Owing to those characteristics, the ceramics parts have been used for the sliding part of the precision ...
So ITO   +7 more
doaj   +2 more sources

Laser Displacement Sensor Measurement Method Based on Residual Compensation [PDF]

open access: yesJisuanji gongcheng, 2018
Due to linear fitting,the measurement error of laser triangulation ranging technique is large,and the linearity decreases in the case of large range ranging.To solve this problem,a high precision laser displacement sensor measurement method based on ...
ZHAO Jinghai,SUN Feixian
doaj   +1 more source

3D flexible displacement sensor for highly sensitive movement measurement assisted by the terahertz imaging system

open access: yesFrontiers in Materials, 2022
Aiming at the difficulty of accurately calibrating the sample position in the terahertz (THz) imaging process, especially in the defect imaging detection and the precise characterization of the edge profile, a flexible and highly sensitive 3D terahertz ...
Tianhua Meng   +7 more
doaj   +1 more source

An Absolute Displacement Measurement Method and Its Application in Ship Motion Measurement

open access: yesJournal of Marine Science and Engineering, 2023
Due to the fact that there is no static reference point in ocean space, relative measurement sensors such as laser sensors cannot be applied to the measurement of ship motion.
Chongyang Han, Xiong Hu
doaj   +1 more source

Application Research of Frequency-Modulated Continuous-Wave Displacement Sensor Based on Zero-Crossing Phase Detecting Algorithm

open access: yesInternational Journal of Optics, 2021
Frequency-modulated continuous-wave (FMCW) interference, as a new technology of laser interferometry, has the advantages of length traceability, large range, high accuracy, simple structure, and optical fiber transmission.
Bin Sun   +3 more
doaj   +1 more source

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