Accession Number:

ADA288879

Title:

Development of Superconducting Technology for Inertial Guidance, Gravity Survey and Fundamental Gravity Experiments.

Descriptive Note:

Final rept. 30 Sep 87-31 Dec 93,

Corporate Author:

MARYLAND UNIV COLLEGE PARK DEPT OF PHYSICS

Personal Author(s):

• Paik, Ho J.
• Canavan, Edgar R.
• Bachrach, Benjamin
• Haucke, Hans J.

Report Date:

1994-08-01

Pagination or Media Count:

169.0

Abstract:

The principles and test results of the superconducting inertial instruments, developed under Air Force contract F19628-87-K-0053, are reported. An improved model of Superconducting Six-axis Accelerometer SSA-1b was constructed and operated in both open- and closed-loop force rebalance mode. The device has intrinsic noise levels of 10-11 ms-1 Hz-1 and 10-9 rad s-2 hz-2 for the linear and angular acceleration, respectively, and has an open-loop bandwidth of 10 Hz. An ac-driven Superconducting Gravity Gradiometer SAGG, capable of withstanding hostile moving-base environments, has also been tested under the contract. A three-axis Superconducting Gravity Gradiometer SGG-11b, developed with NASA support, was used to carry out a precision laboratory test of the gravitational inverse square law under the Air Force contract.

Descriptors:

• *SUPERCONDUCTORS
• *GRAVITY
• *INERTIAL NAVIGATION
• *INERTIAL GUIDANCE
• TEST AND EVALUATION
• LABORATORY TESTS
• ACCELEROMETERS
• SURVEYS
• LINEARITY
• PRECISION
• BALANCE
• INSTRUMENTATION
• INERTIAL SYSTEMS
• BANDWIDTH
• OPEN LOOP SYSTEMS
• AIR FORCE PROCUREMENT
• ANGULAR ACCELERATION

Subject Categories:

• Navigation and Guidance
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE