Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Alexander K. Sang"'
Publikováno v:
IEEE Sensors Journal. 12:55-63
Simple, circular loops in a single optical fiber bonded to a metal test sample are used to form multiple strain gauge rosettes. Strain measurements are made using an optical backscatter reflectometer to detect changes in the phase of the Rayleigh Sca
Publikováno v:
IEEE Sensors Journal. 8:1375-1380
We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a Nuclear Reactor. The sensors consisted of 2 m segments of commercially available, single mode optical fibers. The interrogation technique
Autor:
Joseph A. Schetz, Rakesh K. Kapania, Samantha Magill, Wade J. Pulliam, Matthew MacLean, Alexander K. Sang
Publikováno v:
AIAA Journal. 40:50-57
This study concerns the direct measuring technique for skin-friction determination. Such a device measures the force on a small, movable surface element as a shear e ow passes over the surface. The typical direct-measuring skin-friction gauge uses a
Publikováno v:
SPIE Proceedings.
We describe the use of swept wavelength interferometry for millimeter resolution dynamic fiber optic strain measurements on a cyclically loaded aluminum coupon using single mode fiber. The interrogation method is based on measuring the phase along th
Autor:
Alexander K. Sang, Clark Boyd
Publikováno v:
Fiber Optic Sensors and Applications VI.
We present a prototype fiber-optic temperature, pressure and skin friction sensor suite for possible use in a deep water petroleum pipeline containing corrosive, multi-phase flow with solid particulates in a pressure and temperature gradient. The sen
Autor:
Stephen T. Kreger, Mark E. Froggatt, Alexander K. Sang, Dawn K. Gifford, Matthew S. Wolfe, Brian J. Soller
Publikováno v:
2007 IEEE Avionics, Fiber-Optics and Photonics Technology Conference.
In recent years, optical frequency domain reflectometry (OFDR) has emerged as an effective measurement technique for characterizing short-haul optical networks such as those used in avionics. Comparable techniques such as optical time domain reflecto
Autor:
Mark E. Froggatt, Ryan J. Seeley, Stephen T. Kreger, Roger G. Duncan, Dawn K. Gifford, Matthew S. Wolfe, Alexander K. Sang
Publikováno v:
Sensor Systems and Networks: Phenomena, Technology, and Applications for NDE and Health Monitoring 2007.
We describe the results of a study of the performance characteristics of a monolithic fiber-optic shape sensor array. Distributed strain measurements in a multi-core optical fiber interrogated with the optical frequency domain reflectometry technique