Precision metrology of NSTX surfaces using coherent laser radar ranging

H. W. Kugel; D. Loesser; A. L. Roquemore; M. M. Menon; R. E. Barry

doi:10.1063/1.1310586

Precision metrology of NSTX surfaces using coherent laser radar ranging

H. W. Kugel
, D. Loesser
, A. L. Roquemore
, M. M. Menon
, R. E. Barry

PPPL Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 μm laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of <100 μm at distances of up to 22 m. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.

Original language	English (US)
Pages (from-to)	533-536
Number of pages	4
Journal	Review of Scientific Instruments
Volume	72
Issue number	1 II
DOIs	https://doi.org/10.1063/1.1310586
State	Published - Jan 2001

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1310586

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abstract = "A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 μm laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of <100 μm at distances of up to 22 m. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.",

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year = "2001",

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doi = "10.1063/1.1310586",

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AU - Kugel, H. W.

AU - Loesser, D.

AU - Roquemore, A. L.

AU - Menon, M. M.

AU - Barry, R. E.

PY - 2001/1

Y1 - 2001/1

N2 - A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 μm laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of <100 μm at distances of up to 22 m. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.

AB - A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 μm laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of <100 μm at distances of up to 22 m. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.

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UR - https://www.scopus.com/pages/publications/0013006114#tab=citedBy

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EP - 536

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 1 II

ER -

Precision metrology of NSTX surfaces using coherent laser radar ranging

Abstract

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