NDLI: Study of dynamic data acquisition and processing in a novel x-ray process tomography system for rapid rotating aero-engine

Content Provider	IEEE Xplore Digital Library
Author	Ming Chang Yongshun Xiao Zhiqiang Chen
Copyright Year	2013
Description	Author affiliation: Dept. of Eng. Phys., Tsinghua Univ., Beijing, China (Ming Chang; Yongshun Xiao; Zhiqiang Chen)
Abstract	In order to detect deformation of objects during the operating test, such as running aero-engine, a novel dynamic industry computed tomography (ICT) system taking advantage of the rotation of the object itself was put forward. A convenient single-trigger mode is applied to the system to acquire the complete projection data in several rotating cycles. Due to the dynamic acquisition procedure, the projection data should be sorted according to their views after the measurements. However due to the fluctuation of the aero-engine blades speed, the estimated projection angles are often slightly inaccurate and these errors are accumulated during the measurements in several rotating cycles, which eventually lead to obvious stripe artifacts in the reconstructed images. Then a posterior correction method is developed to reduce the accumulated errors for further reconstructions. The main idea of the purposed method is to carry out pre-reconstructions with few-views projections respectively to guide the accurate sort of the corresponding projections. Then a high resolution reconstructed image can be achieved with the accurately sorted projections. Simulating experiments are carried out to demonstrate the feasibility of the dynamic measurements and the effectiveness of the projection processing method. These basic researches are meaningful and useful for the following system implementations in the future.
Starting Page	1
Ending Page	4
File Size	364875
Page Count	4
File Format	PDF
e-ISBN	9781479905348
DOI	10.1109/NSSMIC.2013.6829733
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-27
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Blades Aerodynamics X-ray imaging Computed tomography Fluctuations Rotation measurement
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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