INITIAL RESULTS FROM A SUPERCONDUCTING INDUCTIVE PRESSURE GAUGE

Authors
EDWARDS C MARHENKE L LIPA JA
Citation
C. Edwards et al., INITIAL RESULTS FROM A SUPERCONDUCTING INDUCTIVE PRESSURE GAUGE, Czechoslovak journal of Physics, 46, 1996, pp. 2755-2756
Citations number
5
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
5
Pages
2755 - 2756
Database
ISI
SICI code
0011-4626(1996)46:<2755:IRFASI>2.0.ZU;2-U
Abstract
We describe a prototype of a superconducting pressure gauge, expected to eventually have a sensitivity of 3x10(-10) bar at 20 bar. The devic e uses a superconducting diaphragm as a ground plane. Movement of the ground plane changes the inductance of an adjacent superconducting coi l, which modulates the current flowing through a DC SQUID. The prototy pe showed a sensitivity of 2x10(-10) bar/root Hz in the 0.1 Hz to 1 Hz region, and 10(-7) bar in the mHz region.