An Inexpensive Automatic Digital Film Reader

Preonas, D. D.; Swift, H. F.; Williams, G. S.

doi:10.1117/12.7971534

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Data Reduction Methods1

Angle Variation1

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1970

1971

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Cited by 3 publications

(2 citation statements)

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“…'n avalable at this facility (Ref. 39). In this application, the system produces the x-y coordinates of various points selected in each frame.…”

Section: Data Reduction Methodsmentioning

confidence: 99%

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Hypervelocity Impact -- Material Strength Effects on Crater Formation and Shock Propagation in Three Aluminum Alloys

Prater¹

1970

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“…'n avalable at this facility (Ref. 39). In this application, the system produces the x-y coordinates of various points selected in each frame.…”

Section: Data Reduction Methodsmentioning

confidence: 99%

“…The details of this system are described in Ref. 39. This device allows the reading of position points on each frame Quickly and accurately, automatically punching the coordinaýles of each point read on an IBM card ready for use with the data reduction computer program.…”

Section: Angle Variationmentioning

confidence: 99%

Hypervelocity Impact -- Material Strength Effects on Crater Formation and Shock Propagation in Three Aluminum Alloys

Prater¹

1970

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Planar Shock Wave Experiments Using Very Small Bore Guns

Hopkins¹,

Swift

1971

Review of Scientific Instruments

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Small caliber (7.62–13.7 mm) smoothbore powder guns have been developed to generate planar shock wave data in solid materials. Basically the experiments consist of launching flat plates of materials whose shock properties have been predetermined against targets made from materials with unknown properties mounted beyond the gun muzzle. A rotating-mirror streak camera is used to monitor the impact velocity and the recoil velocity of the target rear surface. These results, together with shock properties of the known material, are sufficient for determining a point on the shock Hugoniot of the unknown material when the assumption is made that target rear surface velocity is twice material velocity. The impact process is reversed (i.e., unknown material is launched against standard material when this assumption is not valid). To date, impact velocities have been limited to 2.5 km/sec because a powder gun was used for projectile launching but impact velocities can be extended to 7 or 8 km/sec by using a small light-gas gun.

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Quantitative Motion Analysis from Rotating Mirror Framing Camera Records

Preonas

Prater

1970

J SMPTE

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An Inexpensive Automatic Digital Film Reader

Cited by 3 publications

References 0 publications

Hypervelocity Impact -- Material Strength Effects on Crater Formation and Shock Propagation in Three Aluminum Alloys

Hypervelocity Impact -- Material Strength Effects on Crater Formation and Shock Propagation in Three Aluminum Alloys

Planar Shock Wave Experiments Using Very Small Bore Guns

Quantitative Motion Analysis from Rotating Mirror Framing Camera Records

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