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Fluorescence-based test of fiber-optic continuity.

D P Norwood, C Vinches, J F Anderson

|April 20, 1997

Summary

A new method uses fiber optic fluorescence to test pyrotechnic initiation continuity. This ensures reliable fiber function before firing, preventing accidental initiations.

Area of Science:

Optoelectronics
Materials Science
Chemical Engineering

Background:

Lasers and optical fibers are increasingly used for pyrotechnic initiation.
A critical need exists for reliable continuity testing of initiation fibers before pyrotechnic activation.

Purpose of the Study:

To demonstrate the feasibility of an unambiguous optical fiber continuity test for pyrotechnics.
To develop a method that ensures the integrity of the initiation pathway prior to firing.

Main Methods:

Utilizing laser-induced fluorescence from a material within or near the pyrotechnic.
Employing optical fibers to transmit excitation light and collect the returned fluorescence signal.
Analyzing the fluorescence signal for unambiguous confirmation of fiber continuity.

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Main Results:

Proof of concept for a fluorescence-based continuity test was successfully established.
The method provides an unambiguous signal, distinguishing between a continuous and a broken fiber.
The test is compatible with pyrotechnic initiation systems using optical fibers.

Conclusions:

A novel and unambiguous method for testing optical fiber continuity in pyrotechnic initiation has been developed.
This fluorescence-based technique enhances safety and reliability in laser-initiated pyrotechnic systems.
The developed method offers a practical solution for pre-initiation verification in demanding applications.