scholarly journals Three Dimensional Profile Measurement System for Tunnel Surface Using 1.3 Mega-pixels High Speed Image Processing Camera

2012 ◽  
Vol 48 (12) ◽  
pp. 863-871
Author(s):  
Eiji TAKAHASHI ◽  
Naokazu SAKODA ◽  
Kenichi ASAHI ◽  
Yozo FUKUMOTO
Keyword(s):  
Image Processing ◽  
Measurement System ◽  
High Speed ◽  
Three Dimensional ◽  
Profile Measurement ◽  
High Speed Image Processing

Three Dimensional Measurement System for the Dynamic Deformation of Aero-engine Blade Profile

2020 ◽  
Vol 29 (07n08) ◽  
pp. 2040014
Author(s):  
Yongchao Wei ◽  
Chunyan Deng ◽  
Xingkun Wu ◽  
Liangzhong Ao
Keyword(s):  
Measurement System ◽  
High Speed ◽  
Technical Problem ◽  
Three Dimensional ◽  
Dynamic Measurement ◽  
Profile Measurement ◽  
Profile Information ◽  
Aero Engine ◽  
Phase Calibration ◽  
And Performance

In order to solve the technical problem of three-dimensional profile measurement of aero-engine blades with high speed rotation, an optical dynamic measurement system for aero-engine blades was developed. Firstly, the system is calibrated by the algorithm of spatial truncation phase calibration to establish the index between truncation phase and spatial coordinates. During the measurement, the deformation map of the rotating measured blade is obtained by synchronous projection and snapshot. By using the fast Fourier algorithm, the truncation phase is obtained, and then the profile information of blade can be obtained through the truncation phase and spatial coordinate index. Through the design and construction of the blade simulation platform and dynamic measurement experiment system, the three-dimensional profile data of the blade at different rotating speeds are obtained, compared and analyzed, and then the overall profile deformation law is discovered, which verifies the effectiveness and feasibility of the algorithm. The system can obtain the dynamic profile information of the whole blade completely, and provide innovative technical means for blade design verification and performance analysis.

An Acoustic System for Pipeline Profile Measurement

1983 ◽  
Vol 105 (4) ◽  
pp. 475-479
Author(s):  
H. Van Calcar
Keyword(s):  
Measurement Technique ◽  
Measurement System ◽  
Performance Enhancement ◽  
Three Dimensional ◽  
Profile Measurement ◽  
Baseline Measurement ◽  
Acoustic System ◽  
Position Measurement ◽  
Long Baseline ◽  
Hardware Configuration

This paper presents an acoustic position measurement system used for precise three-dimensional flowline profile measurement. The system measures several points along the flowline using the long-baseline measurement technique and augments this measurement with depth telemetry repeaters to maintain elevation accuracy throughout the changing installation geometry. The paper discusses both the measurement system and the performance enhancement features. The paper concludes with a discussion of the hardware configuration and the accuracy that can be expected when the technique is extended into deeper operating areas.

High-speed image processing on digital smart pixel array

2002 ◽  
Vol 38 (12) ◽  
pp. 590 ◽  
Author(s):  
H. Kawai ◽  
A. Baba ◽  
M. Shibata ◽  
Y. Takeuchi ◽  
T. Komuro ◽  
...  
Keyword(s):  
Image Processing ◽  
High Speed ◽  
Pixel Array ◽  
Smart Pixel ◽  
High Speed Image Processing ◽  
Smart Pixel Array

Real-time lock-in imaging by a newly developed high-speed image-processing charge coupled device video camera

2003 ◽  
Vol 74 (3) ◽  
pp. 1393-1396 ◽  
Author(s):  
Kentarou Nishikata ◽  
Yoshihide Kimura ◽  
Yoshizo Takai ◽  
Takashi Ikuta ◽  
Ryuichi Shimizu
Keyword(s):  
Image Processing ◽  
Real Time ◽  
High Speed ◽  
Video Camera ◽  
Charge Coupled Device ◽  
Lock In ◽  
High Speed Image Processing

Quantification of Facial Motion for Objective Evaluation Using a High-Speed Three-Dimensional Face Measurement System-A Pilot Study

2006 ◽  
Vol 27 (7) ◽  
pp. 1023-1029 ◽  
Author(s):  
Seiichi Nakata ◽  
Yukio Sato ◽  
Pujitha Gunaratne ◽  
Yoshiro Suzuki ◽  
Saiko Sugiura ◽  
...  
Keyword(s):  
Pilot Study ◽  
Measurement System ◽  
High Speed ◽  
Three Dimensional ◽  
Objective Evaluation ◽  
Facial Motion ◽  
System A ◽  
Dimensional Face
Sign in / Sign up

Export Citation Format

Share Document