Characterization of optical wavefront distortions due to a boundary layer at hypersonic speeds

C. M. Wyckham; S. H. Zaidi; R. B. Miles; A. J. Smits

Characterization of optical wavefront distortions due to a boundary layer at hypersonic speeds

C. M. Wyckham, S. H. Zaidi, R. B. Miles, A. J. Smits

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

A MHz rate Shack-Hartmann sensor has been built which allows the measurement of wavefront phase distortion in high speed flows. It is capable of obtaining 30 frame movies at up to 500 kHz or 1 MHz with a 2 ps pause at every fifth frame. The sensor was used to obtain the distortion due to flow over a wedge at Mach 2.4 at a 7.8 kHz framing rate. It was also used at 500 kHz to measure the optical path difference due to a nitrogen free jet and due to a hypersonic boundary layer at Mach 8. Results are promising and the system is still under further development.

Original language	English (US)
Title of host publication	34th AIAA Plasmadynamics and Lasers Conference
State	Published - Dec 1 2003
Event	34th AIAA Plasmadynamics and Lasers Conference 2003 - Orlando, FL, United States Duration: Jun 23 2003 → Jun 26 2003

Other

Other	34th AIAA Plasmadynamics and Lasers Conference 2003
Country/Territory	United States
City	Orlando, FL
Period	6/23/03 → 6/26/03

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Condensed Matter Physics

Cite this

@inproceedings{e7d57243ff384d11adff29620ed222ff,

title = "Characterization of optical wavefront distortions due to a boundary layer at hypersonic speeds",

abstract = "A MHz rate Shack-Hartmann sensor has been built which allows the measurement of wavefront phase distortion in high speed flows. It is capable of obtaining 30 frame movies at up to 500 kHz or 1 MHz with a 2 ps pause at every fifth frame. The sensor was used to obtain the distortion due to flow over a wedge at Mach 2.4 at a 7.8 kHz framing rate. It was also used at 500 kHz to measure the optical path difference due to a nitrogen free jet and due to a hypersonic boundary layer at Mach 8. Results are promising and the system is still under further development.",

author = "Wyckham, {C. M.} and Zaidi, {S. H.} and Miles, {R. B.} and Smits, {A. J.}",

year = "2003",

month = dec,

day = "1",

language = "English (US)",

isbn = "9781624100963",

booktitle = "34th AIAA Plasmadynamics and Lasers Conference",

note = "34th AIAA Plasmadynamics and Lasers Conference 2003 ; Conference date: 23-06-2003 Through 26-06-2003",

}

TY - GEN

T1 - Characterization of optical wavefront distortions due to a boundary layer at hypersonic speeds

AU - Wyckham, C. M.

AU - Zaidi, S. H.

AU - Miles, R. B.

AU - Smits, A. J.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - A MHz rate Shack-Hartmann sensor has been built which allows the measurement of wavefront phase distortion in high speed flows. It is capable of obtaining 30 frame movies at up to 500 kHz or 1 MHz with a 2 ps pause at every fifth frame. The sensor was used to obtain the distortion due to flow over a wedge at Mach 2.4 at a 7.8 kHz framing rate. It was also used at 500 kHz to measure the optical path difference due to a nitrogen free jet and due to a hypersonic boundary layer at Mach 8. Results are promising and the system is still under further development.

AB - A MHz rate Shack-Hartmann sensor has been built which allows the measurement of wavefront phase distortion in high speed flows. It is capable of obtaining 30 frame movies at up to 500 kHz or 1 MHz with a 2 ps pause at every fifth frame. The sensor was used to obtain the distortion due to flow over a wedge at Mach 2.4 at a 7.8 kHz framing rate. It was also used at 500 kHz to measure the optical path difference due to a nitrogen free jet and due to a hypersonic boundary layer at Mach 8. Results are promising and the system is still under further development.

UR - http://www.scopus.com/inward/record.url?scp=84897584206&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84897584206&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84897584206

SN - 9781624100963

BT - 34th AIAA Plasmadynamics and Lasers Conference

T2 - 34th AIAA Plasmadynamics and Lasers Conference 2003

Y2 - 23 June 2003 through 26 June 2003

ER -

Characterization of optical wavefront distortions due to a boundary layer at hypersonic speeds

Abstract

Other

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this