Full-scale high-speed schlieren imaging of explosions and gunshots

Gary S. Settles, Torben P. Grumstrup, Lori J. Dodson, James David Miller, Joseph A. Gatto

Research output: Contribution to journalConference article

9 Citations (Scopus)

Abstract

High-speed imaging and cinematography are important in research on explosions, firearms, and homeland security. Much can be learned from imaging the motion of shock waves generated by such explosive events. However, the required optical equipment is generally not available for such research due to the small aperture and delicacy of the optics and the expense and expertise required to implement high-speed optical methods. For example, previous aircraft hardening experiments involving explosions aboard full-scale aircraft lacked optical shock imaging, even though such imaging is the principal tool of explosion and shock wave research. Here, experiments are reported using the Penn State Full-Scale Schlieren System, a lens-and-grid-type optical system with a very large field-of-view. High-speed images are captured by photography using an electronic flash and by a new high-speed digital video camera. These experiments cover a field-of-view of 2×3 m at frame rates up to 30 kHz. Our previous high-speed schlieren cinematography experiments on aircraft hardening used a traditional drum camera and photographic film. A stark contrast in utility is found between that technology and the all-digital high-speed videography featured in this paper.

Original languageEnglish (US)
Article number174
Pages (from-to)60-68
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5580
DOIs
StatePublished - Aug 16 2005

Fingerprint

High-speed Imaging
Explosion
Explosions
explosions
High Speed
high speed
Imaging techniques
Aircraft
cinematography
aircraft
Photographic films
Imaging
Hardening
Field of View
Shock Waves
Experiment
Shock waves
hardening
Camera
field of view

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Settles, Gary S. ; Grumstrup, Torben P. ; Dodson, Lori J. ; Miller, James David ; Gatto, Joseph A. / Full-scale high-speed schlieren imaging of explosions and gunshots. In: Proceedings of SPIE - The International Society for Optical Engineering. 2005 ; Vol. 5580. pp. 60-68.
@article{1171462462914265b27a737aa866104a,
title = "Full-scale high-speed schlieren imaging of explosions and gunshots",
abstract = "High-speed imaging and cinematography are important in research on explosions, firearms, and homeland security. Much can be learned from imaging the motion of shock waves generated by such explosive events. However, the required optical equipment is generally not available for such research due to the small aperture and delicacy of the optics and the expense and expertise required to implement high-speed optical methods. For example, previous aircraft hardening experiments involving explosions aboard full-scale aircraft lacked optical shock imaging, even though such imaging is the principal tool of explosion and shock wave research. Here, experiments are reported using the Penn State Full-Scale Schlieren System, a lens-and-grid-type optical system with a very large field-of-view. High-speed images are captured by photography using an electronic flash and by a new high-speed digital video camera. These experiments cover a field-of-view of 2×3 m at frame rates up to 30 kHz. Our previous high-speed schlieren cinematography experiments on aircraft hardening used a traditional drum camera and photographic film. A stark contrast in utility is found between that technology and the all-digital high-speed videography featured in this paper.",
author = "Settles, {Gary S.} and Grumstrup, {Torben P.} and Dodson, {Lori J.} and Miller, {James David} and Gatto, {Joseph A.}",
year = "2005",
month = "8",
day = "16",
doi = "10.1117/12.580997",
language = "English (US)",
volume = "5580",
pages = "60--68",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",

}

Full-scale high-speed schlieren imaging of explosions and gunshots. / Settles, Gary S.; Grumstrup, Torben P.; Dodson, Lori J.; Miller, James David; Gatto, Joseph A.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5580, 174, 16.08.2005, p. 60-68.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Full-scale high-speed schlieren imaging of explosions and gunshots

AU - Settles, Gary S.

AU - Grumstrup, Torben P.

AU - Dodson, Lori J.

AU - Miller, James David

AU - Gatto, Joseph A.

PY - 2005/8/16

Y1 - 2005/8/16

N2 - High-speed imaging and cinematography are important in research on explosions, firearms, and homeland security. Much can be learned from imaging the motion of shock waves generated by such explosive events. However, the required optical equipment is generally not available for such research due to the small aperture and delicacy of the optics and the expense and expertise required to implement high-speed optical methods. For example, previous aircraft hardening experiments involving explosions aboard full-scale aircraft lacked optical shock imaging, even though such imaging is the principal tool of explosion and shock wave research. Here, experiments are reported using the Penn State Full-Scale Schlieren System, a lens-and-grid-type optical system with a very large field-of-view. High-speed images are captured by photography using an electronic flash and by a new high-speed digital video camera. These experiments cover a field-of-view of 2×3 m at frame rates up to 30 kHz. Our previous high-speed schlieren cinematography experiments on aircraft hardening used a traditional drum camera and photographic film. A stark contrast in utility is found between that technology and the all-digital high-speed videography featured in this paper.

AB - High-speed imaging and cinematography are important in research on explosions, firearms, and homeland security. Much can be learned from imaging the motion of shock waves generated by such explosive events. However, the required optical equipment is generally not available for such research due to the small aperture and delicacy of the optics and the expense and expertise required to implement high-speed optical methods. For example, previous aircraft hardening experiments involving explosions aboard full-scale aircraft lacked optical shock imaging, even though such imaging is the principal tool of explosion and shock wave research. Here, experiments are reported using the Penn State Full-Scale Schlieren System, a lens-and-grid-type optical system with a very large field-of-view. High-speed images are captured by photography using an electronic flash and by a new high-speed digital video camera. These experiments cover a field-of-view of 2×3 m at frame rates up to 30 kHz. Our previous high-speed schlieren cinematography experiments on aircraft hardening used a traditional drum camera and photographic film. A stark contrast in utility is found between that technology and the all-digital high-speed videography featured in this paper.

UR - http://www.scopus.com/inward/record.url?scp=23244454154&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23244454154&partnerID=8YFLogxK

U2 - 10.1117/12.580997

DO - 10.1117/12.580997

M3 - Conference article

VL - 5580

SP - 60

EP - 68

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 174

ER -