A laser interferometry instrumental complex for recording the velocity of moving surfaces in explosive experiments

The instrumental complex described is intended for recording the velocity of motion of the surface of a sample under study exposed to impact-explosion loading in gas-dynamic investigations of properties of structural materials. The velocity is determined from the Doppler wavelength shift of reflecte...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2010-11, Vol.53 (6), p.846-848
Main Authors: Andrianov, V. P., Bandurkin, K. V., Grigor’ev, S. A., Zakharov, A. E., Ignat’ev, G. N., Koltovoi, O. N.
Format: Article
Language:English
Subjects:
Electrical Engineering
General Experimental Techniques
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
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Summary:The instrumental complex described is intended for recording the velocity of motion of the surface of a sample under study exposed to impact-explosion loading in gas-dynamic investigations of properties of structural materials. The velocity is determined from the Doppler wavelength shift of reflected radiation of the probing laser measured by the interferometry method. A solid-state laser with a pulse duration of >50 μs, an average power of at least 50 W, and a system for controlling the resonator quality factor, which ensures radiation stabilization for maintaining an almost rectangular pulse shape, is used as the probing-radiation source.
ISSN:0020-4412
1608-3180
DOI:10.1134/S002044121006014X