Light Weight Electronic Pointing Device

Period of Performance: 09/19/2007 - 09/19/2009

$730K

Phase 2 SBIR

Recipient Firm

KVH Industries, Inc.
50 Enterprise Center
Middletown, RI 02842
Principal Investigator

Abstract

KVH Industries plans to take advantage of the work performed in Phase I, as well as some extensive internally-funded R&D, to create an affordable, accurate, FOG-based Northfinder. The Phase II approach entails designing a true null seeking servo driven system, using a highly accurate single-axis FOG to measure earth s rotation rate, integrated with two accelerometers for pitch and roll measurements. When treated as a target, North can be detected as the FOG is rotated until it ultimately measures zero. The FOG optical circuit will be made from a small-diameter KVH fiber wound on a bobbin using a Quadrupole winding technique. Since the Phase I effort, KVH's small-diameter fiber has been perfected and tested with Quadrupole winding on standard production FOGs. Results of the accelerometer work performed in Phase I show that the pitch and roll accuracies required can be achieved, and an early Northfinding prototype recently built by KVH shows achievable North finding accuracy as well.