NASA NTRS · 19760000030
Laser extensometer
Abstract
Drift-compensated and intensity-averaged laser-based system uses optical and photoelectric effects for precise measurement of small thermally-induced size changes. Final output signal is directly proportional to size of sample shadow and independent of laser intensity, detector dark current, and lateral motion of sample.
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Stocker, P. L., Marcus, H. L.. 1976-03-01. Laser extensometer. https://ntrs.nasa.gov/citations/19760000030
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