Imaging doppler velocimeter with downward heterodyning in the optical domain

Reu, Phillip L; Hansche, Bruce D

Imaging doppler velocimeter with downward heterodyning in the optical domain

Patent · Tue May 21 04:00:00 EDT 2013

OSTI ID:1083970

Reu, Phillip L; Hansche, Bruce D

In a Doppler velocimeter, the incoming Doppler-shifted beams are heterodyned to reduce their frequencies into the bandwidth of a digital camera. This permits the digital camera to produce at every sampling interval a complete two-dimensional array of pixel values. This sequence of pixel value arrays provides a velocity image of the target.

Research Organization:: SNL-A (Sandia National Laboratories, Albuquerque, NM (United States))

Sponsoring Organization:: USDOE

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 8,446,575

Application Number:: 11/268,943

OSTI ID:: 1083970

Country of Publication:: United States

Language:: English

References (8)

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Digital-holographic interferometry with an image-intensifier system Pedrini, Giancarlo; Tiziani, Hans J.; Alexeenko, Igor Applied Optics, Vol. 41, Issue 4 https://doi.org/10.1364/AO.41.000648	journal	January 2002
Temporal phase unwrapping of digital hologram sequences Pedrini, Giancarlo; Alexeenko, Igor; Osten, Wolfgang Applied Optics, Vol. 42, Issue 29 https://doi.org/10.1364/AO.42.005846	journal	January 2003
Heterodyne temporal speckle-pattern interferometry Haible, Pascal; Kothiyal, Mahenda P.; Tiziani, Hans J. Applied Optics, Vol. 39, Issue 1 https://doi.org/10.1364/AO.39.000114	journal	January 2000
Speckle interferometry with temporal phase evaluation: influence of decorrelation, speckle size, and nonlinearity of the camera Joenathan, Charles; Haible, Pascal; Tiziani, Hans J. Applied Optics, Vol. 38, Issue 7 https://doi.org/10.1364/AO.38.001169	journal	January 1999
Phase-shifted dynamic speckle pattern interferometry at 1 kHz Huntley, Jonathan M.; Kaufmann, Guillermo H.; Kerr, David Applied Optics, Vol. 38, Issue 31 https://doi.org/10.1364/AO.38.006556	journal	January 1999
Measurement of sub-surface delaminations in carbon fibre composites using high-speed phase-shifted speckle interferometry and temporal phase unwrapping Davila, A.; Ruiz, P. D.; Kaufmann, G. H. Optics and Lasers in Engineering, Vol. 40, Issue 5-6 https://doi.org/10.1016/S0143-8166(02)00082-9	journal	November 2003
Speckle interferometry with temporal phase evaluation for measuring large-object deformation Joenathan, C.; Franze, B.; Haible, P. Applied Optics, Vol. 37, Issue 13 https://doi.org/10.1364/AO.37.002608	journal	January 1998

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