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Title: Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles

Abstract

An apparatus is disclosed 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. 3 figs.

Inventors:
Issue Date:
OSTI Identifier:
7254751
Patent Number(s):
4649528 A
Application Number:
PPN: US 6-542958
Assignee:
Robert F. Benjamin, Los Alamos, NM (United States) PTO; EDB-94-125561
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 18 Oct 1983
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; MEASURING INSTRUMENTS; DESIGN; PROJECTILES; DETECTION; SHOCK WAVES; BALLOONS; COMPRESSION; LIGHT SOURCES; OPTICAL EQUIPMENT; OPTICAL FIBERS; STREAK CAMERAS; VELOCITY; AIRSHIPS; CAMERAS; EQUIPMENT; FIBERS; RADIATION DETECTORS; RADIATION SOURCES; 440600* - Optical Instrumentation- (1990-)

Citation Formats

Benjamin, R.F. Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles. United States: N. p., 1987. Web.
Benjamin, R.F. Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles. United States.
Benjamin, R.F. Tue . "Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles". United States.
@article{osti_7254751,
title = {Optical pin apparatus for measuring the arrival time and velocity of shock waves and particles},
author = {Benjamin, R.F.},
abstractNote = {An apparatus is disclosed 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. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {3}
}