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Low-cost, low frequency slotted cylinder transducer

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
83475
Program Year/Program:
2007 / STTR
Agency Tracking Number:
N074-035-0174
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Etrema Products, Inc.
2500 N. Loop Drive Ames, IA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Low-cost, low frequency slotted cylinder transducer
Agency / Branch: DOD / NAVY
Contract: N00014-07-M-0459
Award Amount: $69,949.00
 

Abstract:

Current ASW missions require low frequency off-board sound sources that can operate monostatically or bistatically. Since these sources may or may not be recoverable, and may require a substantial number to cover the designated operating areas, the low frequency source transducers also need to be low cost. The team of Etrema Products and Applied Research Laboratory at The Pennsylvania State University (ARL Penn State) propose using magnetostrictive Galfenol, an iron-gallium alloy, in low frequency transducer devices to produce compact, high acoustic performance transducers at relatively low production costs. Galfenol is uniquely suited for use in low frequency transducers because of its formability, relatively high tensile strength, and relatively high magnetic permeability all of which allow the use of complex shapes to drive transducers. Two Galfenol spring transducer concepts will be investigated: a slotted cylinder transducer with a Gaflenol spring instead of a piezoceramic driver, and a simple double or four headed piston with Galfenol spring drivers. Both these concepts are potentially low-cost, high performance transducer that can reach source levels in excess of 210 dB, resonant frequency less than 1 kHz, and bandwidth greater than 200 Hz.

Principal Investigator:

Julie Slaughter
Senior Design Engineer
5152968030
julie.slaughter@etrema.com

Business Contact:

Jonathan Snodgrass
Executive Vice President
5152968030
jon.snodgrass@etrema.com
Small Business Information at Submission:

ETREMA PRODUCTS, INC.
2500 N. Loop Drive Ames, IA 50010

EIN/Tax ID: 421364093
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
APPLIED RESEARCH LABORATORY AT THE
P.O. Box 30
State College, PA 16804
Contact: Charles Allen
Contact Phone: (814) 863-4430
RI Type: Nonprofit college or university