Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles
- 315 Rover Blvd., Los Alamos, NM 87544
An apparatus for the detection of the arrival and for the determination of the velocity of disturbances such as shock-wave fronts and/or projectiles. Optical pins using fluid-filled microballoons as the light source and an optical fiber as a link to a photodetector have been used to investigate shock-waves and projectiles. A microballoon filled with a noble gas is affixed to one end of a fiber-optic cable, and the other end of the cable is attached to a high-speed streak camera. As the shock-front or projectile compresses the microballoon, the gas inside is heated and compressed producing a bright flash of light. The flash of light is transmitted via the optic cable to the streak camera where it is recorded. One image-converter streak camera is capable of recording information from more than 100 microballoon-cable combinations simultaneously.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Benjamin, Robert F. (Los Alamos, NM)
- Patent Number(s):
- US 4649528
- OSTI ID:
- 866177
- Country of Publication:
- United States
- Language:
- English
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100
affixed
apparatus
arrival
arrival time
attached
bright
cable
camera
capable
combinations
compressed
compresses
detection
determination
disturbances
fiber
fiber-optic
fiber-optic cable
filled
flash
fluid-filled
fronts
gas
heated
high-speed
image-converter
information
inside
investigate
light
light source
link
measuring
microballoon
microballoon-cable
microballoons
noble
noble gas
optic
optic cable
optical
optical fiber
particles
photodetector
pins
producing
projectile
projectiles
recorded
recording
shock
shock wave
shock waves
shock-front
shock-wave
shock-waves
simultaneously
source
streak
streak camera
time
transmitted
transmitted via
velocity
via
wave front
waves