Low Cost Inertial Rate Sensors with Long Term Stability

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-10-M-1820
Agency Tracking Number: F093-140-0766
Amount: $99,857.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: AF093-140
Solicitation Number: 2009.3
Small Business Information
2363 Calle Del Mundo, Santa Clara, CA, 95054
DUNS: 877452664
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Behzad Moslehi
 (408) 565-9004
Business Contact
 Behzad Moslehi
Title: CEO/CTO
Phone: (408) 565-9004
Email: bm@ifos.com
Research Institution
The Air Force is seeking rate sensors that can provide long term stability for augmenting antenna pedestal gyro units and replacing overly expensive devices used to overcome attitude limitations in existing inertial navigators. IFOS proposes to develop an innovative fiber-optic gyro (FOG) with excellent long-term stability features from a light-weight, compact and low-cost device. The proposed device will be designed to also counteract vibration environments typically encountered in inertial navigation platforms, which could have frequency contents as high as 1 kilohertz. Phase I proposes to demonstrate a proof-of-concept two-axis open -loop FOG prototype comprising a polarization maintaining coiled fiber, a specially designed phase modulator an ultra-efficient optical source, and packaging designed to minimize size and weight. Preliminary experiments will be undertaken to establish feasibility of achieving the requisite stability and attitude accuracy over a period of several hours. IFOS has also initiated a collaborative effort with a prime contractor to incorporate the proposed FOG into a demonstration IMUs that can provide high-resolution Line-of-Sight (LOS) stabilization, with better than 1-deg attitude accuracy over the requisite temperature range. This effort is expected to culminate in Phase II designs and test protocols for a FOG-based IMU functioning as a complete navigation grade unit. BENEFIT: proposed IFOS FOGs for IMUs will have significantly enhanced stability, lighter weight and ruggedized components designed to meet specifications for inertial navigation systems. Such high performance, robust and cost-effective gyroscopes will also have significant impact on LOS stabilization systems for radiometry, isolated space platforms and many other DOD applications including for MDA’s ballistic missile defense systems. Non-DoD applications include active suspension systems, large 6-degrees-of-freeedom (DOF) vibration test systems, manufacturing robotic control sensors, stabilization for apertures or antennas used for pointing, tracking, surveillance and communications as well as commercial aircraft inertial navigation systems (INS).

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

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