A study on the improvement of measurement accuracy of the three-dimensional electromagnetic articulography

A unique X-ray diffraction instrument for residual stress measurement has been developed that provides for speed, ease of measurement, accuracy, and economy of surface stress measurement. Application of this instrument with a material removal technique, e.g., electropolishing, has facilitated detailed, high resolution studies of three-dimensional stress fields. This paper describes the instrumentation and techniques applied to conduct the residual stress measurement and presents maps of the residual stress data obtained for the surfaces of a heavy 2 1/4 Cr 1 Mo steel plate weldment.

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Three-Dimensional Flow Measurement by Digital Holographic Particle Image Velocimetry with Spatio-Temporal Derivative Method (Evaluation of the Measurement Accuracy by Numerical Simulation)

JSME International Journal Series B ◽

10.1299/jsmeb.49.1133 ◽

2006 ◽

Vol 49 (4) ◽

pp. 1133-1140 ◽

Cited By ~ 14

Author(s):

Takahiro YAMAGUCHI ◽

Shigeru MURATA ◽

Takafumi MORIHARA

Keyword(s):

Flow Measurement ◽

Measurement Accuracy ◽

Particle Image ◽

Three Dimensional ◽

Three Dimensional Flow ◽

Image Velocimetry ◽

Derivative Method ◽

Temporal Derivative ◽

Spatio Temporal ◽

Holographic Particle Image Velocimetry

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Measurement accuracy of foramen of vesalius for safe percutaneous techniques using computer-assisted three-dimensional landmarks

Surgical and Radiologic Anatomy ◽

10.1007/s00276-013-1148-7 ◽

2013 ◽

Vol 36 (2) ◽

pp. 147-154 ◽

Cited By ~ 8

Author(s):

Mehmet Asim Ozer ◽

Figen Govsa

Keyword(s):

Measurement Accuracy ◽

Three Dimensional ◽

Computer Assisted ◽

Foramen Of Vesalius

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Applications of High-Precise Three-Dimensional Measurement System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.222.62 ◽

2011 ◽

Vol 222 ◽

pp. 62-65 ◽

Cited By ~ 2

Author(s):

Takeshi Hashimoto ◽

Mitsuo Kaneko ◽

András Rövid ◽

Hiroaki Ohta ◽

Akira Fukuda ◽

...

Keyword(s):

Global Warming ◽

Measurement System ◽

Measurement Accuracy ◽

Three Dimensional ◽

Long Distance ◽

Accuracy Measurement ◽

Close Relationship ◽

Three Dimensional Measurement ◽

High Accuracy Measurement ◽

Moving Speed

To reveal the influence of global warming on glaciers, highly accurate observations of glacier movement must continue every year. It is thought that there is a close relationship between glacier moving speed and global warming. Thus, there have been precise, detailed observations of the movement of the Perito Moreno glacier in Patagonia of the Argentine Republic over the past five years. The measurement method of using GPS and an optical measuring instrument is generally used to monitor glacier movement, but the measurement accuracy attained is not optimal because of the huge size of the glacier. The measurement system used for the Perito Moreno observations, however, could realize high accuracy measurement over long distance. The measurement system is based on the principle of stereo measurement using cameras. This paper describes the results of the Perito Moreno glacier observations of this year and considers the effectiveness of glacier observation using cameras.

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