Oregon State University

Full Optical Fiber Array Deployment

 

September 22, 2010: After addressing some issues with keeping the top supporting boom for the pulleys from tilting, the first full-sized optical fiber array was deployed (see movie, sped up 8x). Its size is 8 x 8 m with 35 vertical runs of fiber spaced at a distance of 0.25m. Two separate fibers, one black and one white each with an outer diameter of 0.9 mm, are laced through the 35 top and bottom pulleys. Given a spatial resolution of 0.25 m of the high-resoution DTS laser system, a total of approximately 1120 independent temperature measurements are obtained once per second (1 Hz). The next step will be the installation of sonic anemometers and thermo-hygrometers at the base of the array and next to the fibers at various heights to evaluate sensor performance and uncertainty.

DONUTSS-2010 Full optical fiber array 8 x 8 mThe full-size array featuring a 8 x 8 m domain at 0.25m resolution.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DONUTSS-2010 Lacing the optical fiberJohn and Christoph lace the optical fibers through the pulleys.

 

 

 

 

 

 

 

 

 

 

 

DONUTSS-2010 The array crewThe field crew (from left to right):

John Selker, Evan Deblander, Matthias Zeeman, Alex Smoot, Adam Kennedy, Helen Kennedy, Mike Unsworth, Christoph Thomas

Contact Info

Oregon State University
College of Earth, Ocean, and Atmospheric Sciences
130 Burt Hall
Corvallis, OR,
97331-5503
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