An Optically Based Low Compliance, High Resolution Force Transducer

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 35967
Amount: $69,404.00
Phase: Phase I
Program: SBIR
Awards Year: 1997
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Optra, Inc.
461 Boston St., Topsfield, MA, 01983
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Hy Tran
 (508) 887-6600
Business Contact
Phone: () -
Research Institution
N/A
Abstract
OPTRA proposes to develop a high resolution, high stiffness, optically based force transducer. The use of an optical transducer allows the sensor to operate with both metallic and non-metallic targets. The sensor would offer a resolution on the order of 1 nm, with dynamic range of several microns, at bandwidth better than 20 kHz. This makes the sensor suitable for use in a high stiffness ( > 200 MN/m) force transducer; high stiffness allows operation at high bandwidth. By configuring two sensors with a force transducer, temperature effects are virtually eliminated. OPTRA anticipates sensitivity of better than 1 milligram over a measurement span greater than 5 grams and a mechanical resonance above 1.5 kHz. OPTRA will demonstrate the performance of the force transducer as a high stiffness load cell at NAWC.

* information listed above is at the time of submission.

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