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Variable Compliance Split Ring Transducer

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-09-C-0042
Agency Tracking Number: N074-035-0175
Amount: $499,512.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: N07-T035
Solicitation Number: N/A
Timeline
Solicitation Year: 2007
Award Year: 2008
Award Start Date (Proposal Award Date): 2008-10-13
Award End Date (Contract End Date): 2010-04-13
Small Business Information
2500 N. Loop Drive
Ames, IA 50010
United States
DUNS: 798683355
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Julie Slaughter
 Senior Design Engineer
 (515) 296-8030
 julie.slaughter@etrema.com
Business Contact
 Jonathan Snodgrass
Title: Executive Vice President
Phone: (515) 296-8030
Email: jon.snodgrass@etrema.com
Research Institution
 APPLIED RESEARCH LABORATORY AT PENN
 Stephen Thompson
 
P.O. Box 30
State College, PA 16804
United States

 (814) 865-0190
 Nonprofit College or University
Abstract

Etrema Products, Inc. and Applied Research Laboratory at The Pennsylvania State University demonstrated during Phase I that by utilizing the “delta-E” effect in magnetostrictive materials, the resonant frequency of a split ring transducer can be shifted by over 200 Hz for a low frequency transducer. A variable reluctance driver helps achieve source levels in excess of 210 dB with a potential 80% cost reduction as compared with a similar PZT transducer. The Phase II effort will focus on building hardware and verifying the performance and cost, and scalability of the transducer. Objectives of the Phase Base II effort are: 1. Identify the most viable compliance hinge mechanism and controller algorithm, 2. Demonstrate feasibility of the variable reluctance driver, 3. Demonstrate technical feasibility of the transducer including the controller. The Phase II Option Objectives are: 4. Identify performance limits of the transducer by testing the first article transducers, 5. Demonstrate the transition potential of the technology by optimizing the transducer design. Successful completion of the Phase II and Phase II Option efforts will result in a low-cost, low-frequency transducer design that can be transitioned to Navy applications.

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

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