Patent ID: 7155107
Filing Date: 2006-12-26
Classification: G02B

Abstract:
1. A method for detecting fiber optic cable embedded within a structure, the structure including internal support members and at least one wall having an internal surface affixed to the support members and an opposite accessible external surface, the method comprising the steps of: inserting a tip of an electrostatic field emitter through the wall from the accessible wall surface to a location between the support members affixed to the internal surface; activating the tip of the electrostatic field emitter with a high voltage for a sufficient time to induce an electrostatic charge on any fiber optic cable located between the support members; injecting high pressure air through an air nozzle inserted into the structure from the accessible wall surface at the location between the support members for causing movement of any fiber optic cable located between the support members; and detecting the presence of any fiber optic cable by positioning an electric field detector near the accessible wall surface for measuring an electric field generated by the movement of any electrostatically charged fiber cable located between the support members.