Innovative Undersea Sensors Using Relaxor Piezoelectric Single Crystals

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00024-10-C-4134
Agency Tracking Number: N083-216-0012
Amount: $299,929.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2008
Solicitation Topic Code: N08-216
Solicitation Number: 2008.3
Small Business Information
7112 Nighthawk Drive, Fort Wayne, IN, 46835
DUNS: 134500193
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sara Wagar
 Principal Investigator
 (260) 402-0353
Business Contact
 George Lewis
Title: President
Phone: (260) 485-3752
Research Institution
The frequency spectrum of interest for hydrophones used in Naval tactical systems, ocean surveillance systems, or for environmental monitoring is continuing to expand, due to increased interest in passively detecting third-world submarines, biologics, etc. as well as increased interest in multistatic active sonars. LewTech is proposing that our Phase II effort will be based on the on the Phase I hydrophone development using relaxor single-crystal piezoelectric materials rather than the traditionally-used polycrystalline lead-zirconate-titanate (PZT) piezoceramic materials. This type of hydrophone can be designed to increase the sensitivity and bandwidth and reduce the self-noise, due to the improved electromechanical coupling factors, dielectric constant, and the loss tangent. The overall objective is to establish an improved design for the fat line towed array, using single-crystal ceramics, and demonstrate improvements in sensitivity, self-noise, and bandwidth capabilities over the conventional PZT configuration. Phase II will fabricate prototype single crystal hydrophones and perform in-water testing and compare the results to as counterpart PZT hydrophone. LewTech has formed a strong team with a major Navy system manufacturer, UnderSea Sensor Systems, Inc. (USSI), a wholly-owned company of Ultra Electronics, to support the design and development of a practical, cost effective sensor(s) utilizing relaxor single-crystal ceramics.

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

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