Blast injury dosimeter
AssigneeThe Trustees of the University of Pennsylvania
InventorsDouglas H. Smith, Shu Yang, D. Kacy Cullen
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Abstract
A method for detecting blast induced pressure changes includes exposing a material, a contained solution, a membrane-bound solution, or a photonic crystal material, having a first optical property, to a pressure wave having a blast level. A change in the first optical property to a second optical property of the exposed material, contained solution, membrane-bound solution, or photonic crystal material is determined, and the extent of change corresponds to the blast level.
Claims27
A method for detecting blast induced pressure changes comprising:
- (a) exposing a material having a first optical property, to a pressure wave having a blast level to permanently alter the material;
- and
- (b) determining a change in the first optical property to a second optical property of the exposed material, wherein the extent of change corresponds to the blast level.
A method for detecting blast induced pressure changes comprising:
- (a) exposing a photonic crystal material, having a lattice structure and a first optical property, to a pressure wave having a blast level to destroy at least a portion of the lattice structure;
- and
- (b) determining a change in the first optical property to a second optical property of the exposed photonic crystal material, wherein the extent of change corresponds to the blast level.
A method for detecting blast induced pressure changes comprising:
- (a) forming a photonic crystal material from a polymer such that the photonic crystal material has a first optical property, the photonic crystal having a lattice structure with an arrangement of apertures;
- (b) destroying at least a portion of the lattice structure of the material by a pressure wave having a blast level;
- and
- (c) subsequent to step (b), determining a change in the first optical property to a second optical property of the material, wherein the extent of the change corresponds to the blast level.
A method for detecting blast induced pressure changes comprising:
- (a) exposing a photonic crystal material having a lattice structure to a pressure wave having a blast level to destroy at least a portion of the lattice structure;
- (b) transmitting, after step (a), light onto the photonic crystal material;
- (c) receiving light reflected from the material;
- and
- (d) measuring an optical property of the photonic crystal material, the optical property selected from the group consisting of a reflected wavelength of light, a luminance, and a radiance.
The method of 23 further comprising, prior to step (a), measuring a first optical property of the photonic crystal material prior to exposing the photonic crystal material to the pressure wave;
- and comparing the first optical property to the measured optical property in step (d).
A method for detecting blast induced pressure changes comprising:
- (a) exposing a contained solution having a first optical property, to a pressure wave having a blast level to permanently alter the solution;
- and
- (b) determining a change in the first optical property to a second optical property of the exposed solution, wherein the extent of change corresponds to the blast level.
A method for detecting blast induced pressure changes comprising:
- (a) exposing a membrane-bound solution, where a colorimetric optical property of that solution is obscured, to a pressure wave having a blast level to permanently rupture the membrane and reveal the colorimetric optical property;
- and
- (b) determining the revealed colorimetric optical property of the exposed solution, wherein the colorimetric optical property corresponds to the blast level.
Dependencies are inferred from the claim text.