HIGH PRECISION SPECTROMETER MOVEMENT

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 16113
Amount: $48,026.00
Phase: Phase I
Program: SBIR
Awards Year: 1992
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
12 Emily St, Cambridge, MA, 02139
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard L. Hockney
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
MANY SPACECRAFT OPTICAL/MECHANICAL APPLICATIONS SUCH AS SPECTROMETERS REQUIRE HIGH LEVELS OF POSITIONING PRECISION, UNOBTAINABLE WITH CONVENTIONAL APPROACHES, COUPLED WITH EXTREMELY HIGH RELIABILITY. SATCON TECHNOLOGY CORPORATION PROPOSES TO DEVELOP AND DEMONSTRATE A HIGH PRECISION MOVEMENT FOR SPACECRAFT SPECTROMETERS AND OTHER OPTICAL APPLICATIONS WHICH WILL SATISFY BOTH THESE REQUIREMENTS. THE PROPOSED DEVICE USES A TWO STAGE MECHANIZATION COMBININGA NOVEL LOCKING, ELECTRO-MECHANICAL COARSE STAGE WITH A PIEZO-ELECTRIC FINE POINTING STAGE. THE MOVEMENT HAS COMPLETE ROTATIONAL FREEDOM ABOUT YAW AND ALLOWS +/-5 DEGREES OF MOTION ABOUT PITCH AND/OR ROLL. OPTICAL COMPONENTS CAN BE ALIGNED QUICKLY TO ANY ORIENTATION WITHIN THE ALLOWED RANGE OF ANGULAR MOTION WITH A PRECISION GREATERTHAN .0007 ARC-SECONDS IN ROLL, PITCH, AND YAW AND HELD IN THAT POSITION IDEFINITELY WITH NEGLIGIBLE POWER CONSUMPTION. THE COARSE STAGE COMBINES A NOVEL ANGULAR CONTACT BALL BEARING WITH SPHERICAL SYMMETRY, WITH A SPHERICAL TOQUE MOTOR, WITH A PIEZO-ELECTRIC LOCKING MECHANISM. THE FINE STAGE IS BASED ON AN EXTREMELY SIMPLE SIX-DEGREE-OF-FREEDOM PIEZO-ELECTRIC ACTUATION SYSTEM. PHASE I WILL DEMONSTRATE FEASIBILITY AND WILL INCLUDE DESIGNDEFINITION OF THE DEVICE. A PROTOTYPE SYSTEM WILL BE CONSTRUCTED, TESTED, AND EVALUATED AS A FOLLOW-ON PHASE II PROGRAM.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government