THE DEVELOPMENT OF A NON-INTRUSIVE ELECTRIC FIELD SENSOR BASED ON THE ELECTRO-OPTIC EFFECT IS PROPOSED.

Award Information

Agency: Department of Defense

Branch: Air Force

Contract: N/A

Agency Tracking Number: 2108

Amount: $49,979.00

Phase: Phase I

Program: SBIR

Solicitation Topic Code: N/A

Solicitation Number: N/A

Timeline

Solicitation Year: N/A

Award Year: 1985

Award Start Date (Proposal Award Date): N/A

Award End Date (Contract End Date): N/A

Small Business Information

GEO-CENTERS, INC.

320 Needham St

Newton Upp Falls, MA 02164

United States

DUNS: N/A

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Principal Investigator

Name: BRUCE N NELSON
Phone: (617) 964-7070

Business Contact

Phone: () -

Research Institution

N/A

Abstract

THE DEVELOPMENT OF A NON-INTRUSIVE ELECTRIC FIELD SENSOR BASED ON THE ELECTRO-OPTIC EFFECT IS PROPOSED. ELECTRO-OPTIC CRYSTALS ARE SELECTED SUCH THAT A DIFFERENCE IN THE INDEX OF REFRACTION ALONG THE PRINCIPAL OPTICAL AXES, INDUCED BY A CHANGING ELECTRIC FIELD, RESULTS IN A CHANGE IN TRANSMISSION THROUGH THE OPTICAL SYSTEM. THROUGH THE CHOICE OF AN APPROPRIATE CRYSTAL AND CRYSTAL GEOMETRIES, VARIOUS SENSITIVITIES AND AC BANDWIDTHS ARE ATTAINED IN A FIBER OPTIC SENSOR. THE NATURE OF THE ELECTRO-OPTIC EFFECT EXHIBITED IN ELECTRO-OPTIC CRYSTALS SELECTS SENSITIVITIES TO THE ELECTRIC FIELD ONLY IN ONE DIRECTION. THEREFORE, A SENSOR CAN BE DEVELOPED WITH 3 ELECTRO-OPTIC CRYSTALS MOUNTED ORTHOGONALLY SUCH THAT BOTH FIELD STRENGTH AND DIRECTION CAN BE DETERMINED. ALSO, THE ELECTRONICS AND SIGNAL PROCESSING EQUIPMENT ARE LOCATED AT A GREAT DISTANCE FROM THE SENSOR END, ALLOWING FOR REAL TIME ELECTRIC FIELD MEASUREMENTS IN HOSTILE ENVIRONMENTS. PHASE I RESEARCH IS DIRECTED AT THE SELECTION OF SUITABLE ELECTRO-OPTIC CRYSTALS FOR DESIGNING FIBER OPTIC SENSORS AND TOWARDS THE DETERMINATION OF OPTIMUM MEANS OF SIGNAL DETECTION.

* Information listed above is at the time of submission. *

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THE DEVELOPMENT OF A NON-INTRUSIVE ELECTRIC FIELD SENSOR BASED ON THE ELECTRO-OPTIC EFFECT IS PROPOSED.