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Electric Field Sensor Technology

Award Information

Department of Defense
Award ID:
Program Year/Program:
2012 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Information Systems Laboratories, Inc.
10070 Barnes Canyon Road San Diego, CA 92121-2722
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2012
Title: Electric Field Sensor Technology
Agency: DOD
Contract: N68335-12-C-0198
Award Amount: $744,561.00


This Phase 2 research is directed towards designing electrodes for electric field (E-field) sensing technology that will be incorporated into the design for an air-droppable, A-size acoustic/E-field combination sonobuoy (designated the"E-Buoy"). The electrodes are part of a 3-axis E-field sensing system, which also includes a pre-amplifier and an A/D circuit. Most current E-field sensors use a silver/silver-chloride (Ag/AgCl) electrode encased in conductive agar, which acts as a buffer between the electrode and the seawater. During the time it takes for these electrodes to come to equilibrium with the seawater upon buoy deployment, system performance can be degraded. The purpose of this effort is to develop a suitable electrode for employment in air-dropped buoys for ASW localization missions.. The primary tasks for this Phase are: (a) to identify whether alternative electrode types to the Ag/AgCl, primarily capacitive carbon electrodes, work better in the combination sonobuoy, (b) to determine the best way to buffer the electrodes, (c) to assess the feasibility and potential advantages of dry-storable electrodes vs. wet electrodes, and (d) to develop a prototype design for compact electrodes which can be packaged and stored within an A-size container for long periods prior to deployment, and open up automatically.

Principal Investigator:

Jeffrey Ridgway
Principal Investigator
(858) 373-2775

Business Contact:

Nicole Sanese
Sr. Contract Administrato
(858) 373-2711
Small Business Information at Submission:

Information Systems Laboratories, Inc.
10070 Barnes Canyon Road San Diego, CA -

EIN/Tax ID: 541198316
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No