Photonic shock and impulse (PSI) gauge
AssigneeAnalex Corporation
InventorsGeorge Williams, Todd Evan Vande Brake, Gary Lee Paderewski
Life of this patent
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Abstract
An apparatus for measuring movement of a test specimen, where the apparatus includes an electromagnetic transducer and an optical probe. The apparatus may include a test specimen holder and a body that move together. The optical probe may be configured to direct an optical beam through the body to the test specimen, which may provide for measurement of a prompt impulse. The electromagnetic transducer may be configured to produce a voltage when the test specimen holder and the body move, which may provide for measurement of a total impulse of the same test specimen. Thus, a single gauge may provide for measuring both prompt impulse and total impulse of the same test specimen.
Claims20
An apparatus for measuring movement of a test specimen, the apparatus comprising:
- a transducer housing;
- a test specimen holder that is configured to hold the test specimen and configured to move relative to the transducer housing when the test specimen moves relative to the transducer housing;
- a body that is fixed relative to the test specimen holder such that the body moves with the test specimen holder, relative to the transducer housing, when the test specimen translates relative to the transducer housing;
- an electromagnetic transducer configured to produce a voltage when the test specimen holder and the body move relative to the transducer housing;
- and
- an optical probe configured to direct an optical beam through the body to the test specimen.
A method of measuring movement of a test specimen, the method comprising:
- holding test specimen in a test specimen holder;
- directing an optical beam from an optical probe through a body, that is fixed relative to the test specimen holder, to the test specimen;
- producing a shockwave that propagates through the test specimen such that the optical probe measures displacement of the test specimen due to the shockwave;
- and
- producing a voltage with an electromagnetic transducer based on movement of the body with the test specimen in a first direction relative to the transducer housing.
Dependencies are inferred from the claim text.