Method and Apparatus for measuring Gravitational Acceleration Utilizing a high Temperature Superconducting Bearing
Gravitational acceleration is measured in all spatial dimensions with improved sensitivity by utilizing a high temperature superconducting (HTS) gravimeter. The HTS gravimeter is comprised of a permanent magnet suspended in a spaced relationship from a high temperature superconductor, and a cantilever having a mass at its free end is connected to the permanent magnet at its fixed end. The permanent magnet and superconductor combine to form a bearing platform with extremely low frictional losses, and the rotational displacement of the mass is measured to determine gravitational acceleration. Employing a high temperature superconductor component has the significant advantage of having an operative temperature at or below 77K, whereby cooling maybe accomplished with liquid nitrogen.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31-109-ENG-38
- Assignee:
- DOEGC; EDB-01:069632
- Patent Number(s):
- PATENTS-US-A9186606
- Application Number:
- 9-186,606; TRN: AH200127%%22
- OSTI ID:
- 782844
- Resource Relation:
- Patent File Date: 1998 Nov 06; Other Information: PBD: 6 Nov 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method and apparatus for measuring gravitational acceleration utilizing a high temperature superconducting bearing
Gravimeter using high-temperature superconductor bearing.