Variable Compliance Split Ring Transducer

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$499,512.00
Award Year:
2008
Program:
STTR
Phase:
Phase II
Contract:
N00014-09-C-0042
Award Id:
83476
Agency Tracking Number:
N074-035-0175
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2500 N. Loop Drive, Ames, IA, 50010
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
798683355
Principal Investigator:
JulieSlaughter
Senior Design Engineer
(515) 296-8030
julie.slaughter@etrema.com
Business Contact:
JonathanSnodgrass
Executive Vice President
(515) 296-8030
jon.snodgrass@etrema.com
Research Institute:
APPLIED RESEARCH LABORATORY AT PENN
Stephen Thompson
P.O. Box 30
State College, PA, 16804
(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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