Gauge for measuring high transient pressures

Details Gauge for measuring high transient pressures Gauge for measuring high transient pressures

1982-09-30

1985-01-08

Goldberg, Gerald

Measuring and testing

Fluid pressure gauge

Photoelectric

73 35, 250227, G01L 2308, G01N 3322, G01N 2164

Patent

active

044921217

ABSTRACT:
An article and method is provided for remotely optically measuring high transient isotropic pressures. The arrangement employs a fluorescent crystal (such as a ruby) secured to one end of an elongate optical fiber waveguide for placement in the vicinity of a high pressure occurrence such as near an explosion. Light launched into the free end of the waveguide travels the length thereof to stimulate the crystal, which in the case of a ruby, fluoresces in the red, the wave length of which varies in response to isotropic pressure on the ruby. This red light output is transported back along the same optical fiber waveguide to the free end where its wavelength change is monitored and translated into a pressure value on the crystal.

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