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IEEE Power and Energy Society |
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| Phoenix Chapter |
| October 2004 Luncheon Meeting |
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| Date: |
Thursday, October 21, 2004 |
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| Speaker: |
Dr. Allen Rose |
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NxtPhase T&D Inc. |
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| Topic: |
"Optical PTs and CTs" |
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Summary:
Power is measured and controlled via induced current or voltage in products that are based on nearly
century old technology. Optical sensing is poised to disrupt this method of measurement as more demands
are placed on the control and measurement of electric power while the cost of the measurements continues
to decline. At present analog sensing at High Voltage is converted into digital signals for either control
or metering. One benefit that optical sensors have is the ability to directly provide a digital measurement.
Dr. Rose's presentation discussed the fundamentals of optical current and voltage sensing, major sensor
class-types, the present state of optical sensing in AC (power) and DC (industrial material production)
applications, and the impact this technology will have in driving the measurement and control of power into
the digital domain. The presentation was an interesting look into state of the art sensing technology. The meeting
was well attended (27) and several interesting questions were fielded at the end of the presentation.
Biography:
Allen H. Rose is currently directing production of the NXCT (optical current sensor) product and managing
engineering projects at NxtPhase T&D Inc., in Phoenix, AZ. He joined NxtPhase in 2001 to work on fiber
current and voltage sensors and the calibration these sensor systems. From 1987 to 2001 he worked at NIST
in Boulder, CO, on the development of optical fiber sensors, related optical measurements, and standards.
He holds a Ph.D. (1986) and M.S. (1983) in physics from the University of Arkansas, Fayetteville, and a
B.S. (1981) in physics from Abilene Christian University, Abilene, TX. From 1986-87 he completed an NRC
Postdoctoral Fellow with the U.S. Army’s Ballistic Research Laboratory, Aberdeen Proving Ground, MD.
Dr. Rose has received an R&D 100 award for the development of the optical fiber current sensor in 1991, and
the NIST Bronze Medal for the development of a standard retarder in 1998. He is an associate editor for
Photonics Technology Letters, a member of the Optical Society of America, and the IEEE Lasers &
Electro-Optics Society.
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