Accession Number:

ADA056439

Title:

Pulsed Holographic Analysis of Large Vibrating Vehicle Components,

Descriptive Note:

Corporate Author:

ARMY TANK-AUTOMOTIVE RESEARCH AND DEVELOPMENT COMMAND WARREN MICH

Personal Author(s):

• Gerhart,Grant R.
• Arutunian,Gregory

Report Date:

1978-06-01

Pagination or Media Count:

14.0

Abstract:

Double-pulsed holography provides a measurement technique for the analysis of large surface areas of vibrating components. A particular advantage of holography is that it requires no contact with the vibrating object, and it gives a solution to a classical problem in the area of both acoustic and vibration analysis. The surface of a vibrating object is represented by a series of fringes which connect points that have equal amplitudes of displacement. Since holography is based on interferometry, the accuracy is within a fraction of the wavelength of light.

Descriptors:

• *VIBRATION
• *HOLOGRAPHY
• *PHOTOGRAPHIC ANALYSIS
• Q SWITCHING
• PULSED LASERS
• LASER BEAMS
• HIGH RESOLUTION
• INTERFEROMETRY
• FABRY PEROT INTERFEROMETERS
• RUBY LASERS
• OPTICAL INSTRUMENTS

Subject Categories:

• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE