Push-pull, double-delay-leg or dual VISAR (Velocity Interferometer System for any Reflector)
This report describes a new VISAR (velocity interferometer system for any reflector) built for Sandia Explosive Projects and Diagnostics Division 2514. The system incorporates push-pull signal processing, which reduces sensitivity to target self-light and simplifies data reduction. The system consists of two push-pull VISARs with two modes of operation. Each VISAR may be used independently to track separate targets or separate points on a used independently to track separate targets or separate points on a common target, or they may be used to track the motion of a single point. The latter redundant measurement is used to resolve the velocity jump ambiguity in shock-wave experiments. 6 refs., 14 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6907123
- Report Number(s):
- SAND-87-1974; ON: DE88011276
- Country of Publication:
- United States
- Language:
- English
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VISAR (Velocity Interferometer System for Any Reflector): Displacement-mode data reduction
VISAR measurements of velocities in explosive valves. [Velocity interferometer system for any reflector (VISAR)]
Related Subjects
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
DATA
DATA ACQUISITION SYSTEMS
DESIGN
DETONATION WAVES
ELECTRONIC CIRCUITS
EQUATIONS
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
INTERFEROMETERS
MEASURING INSTRUMENTS
MICHELSON INTERFEROMETER
MODIFICATIONS
NUMERICAL DATA
OPTICAL EQUIPMENT
PHOTOMULTIPLIERS
PHOTOTUBES
SHOCK WAVES
SIGNAL CONDITIONING